RPSC Rajasthan AO 2020 Solved Paper — Agri Master Mind

Mutation:Mutations are permanent irreversible inheritable changes i.e. they are carried forward in the next generation & cannot be reversed thus, mutations are referred to as the ultimate source of organic variation Mutations are of two types - Chromosomal Mutations & Gene Mutations✅ Explanation:Mutagens or Mutagenic agents - These are the substances that cause mutations.These can be broadly classified into two types - Radiation & Chemical mutagens.Examples:Physical Mutagens: Ionizing Radiations: α-rays, β-rays, γ-rays, X-raysNon-ionizing Radiations: UV raysChemical Mutagens: Alkylating Agents: Mustard gas, EMS (Ethyl methanesulfonate), MMS (Methyl methanesulfonate), EES (Ethyl ethanesulfonate)Base Analogues: 5-BromouracilAcridine Dyes: Acriflavin, Ethidium bromideDeaminating Agents: (Examples not provided, but could include nitrous acid)

✅ Explanation-.Somaclonal variation is the genetic variation that occurs among plants that are produced through tissue culture using somatic cells or vegetative parts of the plant. The term comes from the Greek words soma (vegetative cells), clonal (to make a copy), and variations (to make changes)🔑 Key point- Somaclonal verietyMustard - Pusa Jai Kisan (Bio-902)Sweet Potato - ScurletCitronella - Bio-13Linseed - AndroLathyrus – RatanSugarcane-ono

✅ Explanation-The double helical structure of DNA is developed through X-ray crystallography.X-ray crystallography is a scientific technique that is used to map out the atoms of crystalline solids in three dimensions.In 1953 James Watson and Francis Crick proposed a double helix model of DNA structure, based on the X-ray diffraction data produced by Wilkins and Rosalind Franklin.One of the significant hallmarks of their proposition was base pairing between the two strands of polynucleotide chains.Z-DNA:Helix Direction: Left-handedAverage bp per turn: 12Distance between each bp: 0.37 nmDiameter: 1.8 nmOverall Shape: Elongated and narrowRequired Conditions: Alternating purine and pyrimidine bases B-DNA:Helix Direction: Right-handedAverage bp per turn: 10.5Distance between each bp: 0.34 nmDiameter: 1.9 nmOverall Shape: Long and narrowRequired Conditions: 92% waterA-DNA:Helix Direction: Right-handedAverage bp per turn: 11Distance between each bp: 0.26 nmDiameter: 2.3 nmOverall Shape: Short and wideRequired Conditions: 75% water

✅ Explanation- Coefficient of Variation (CV): This is particularly useful when comparing variation between traits with different units (like height in centimeters and weight in grams). The CV expresses the standard deviation as a percentage of the mean, allowing for a standardized comparison.Other option explanation- Range: This gives you the simplest measure of variation. It tells you the difference between the tallest and shortest plant or the heaviest and lightest seed. This helps to understand the spread of the data. Standard Deviation: This is a more sophisticated measure of variation that considers how much individual data points deviate from the average. A higher standard deviation means more variability in the data.

✅ Explanation-Meiosis:The production of offspring by sexual reproduction includes the fusion of two gametes, each with a complete haploid set of chromosomes.Gametes are formed from specialized diploid cells. This specialized kind of cell division that reduces the chromosome number by half results in the production of haploid daughter cells.This kind of division is called meiosis.Meiosis is divided into 4 phases namely:ProphaseMetaphaseAnaphaseTelophase🔑 Key PointsDuring metaphase I the bivalents arrange on the equatorial plate.This is followed by anaphase I in which homologous chromosomes move to the opposite poles with both their chromatids.Each pole receives half the chromosome number of the parent cell.In telophase I, the nuclear membrane and nucleolus reappear.Meiosis II is similar to mitosis. During anaphase II the sister chromatids separate.Thus at the end of meiosis four haploid cells are formed.

✅Explanation- Supplementary gene interaction: In this type of interaction, one gene has a major effect on the phenotype, while the other gene modifies or enhances the expression of the first gene. This results in three distinct phenotypes:The phenotype produced by the dominant allele of the first gene alone.A modified phenotype produced when the dominant alleles of both genes are present.(retio-9:3:4)The phenotype produced by the recessive alleles of both genes. Duplicate gene interaction: Two genes have the same effect on the phenotype, and either dominant allele can produce the dominant trait. This typically results in a 15:1 phenotypic ratio  Complementary gene interaction: Two genes work together to produce a specific phenotype. Both dominant alleles are required for the expression of the dominant trait. This often results in a 9:7 phenotypic ratio  Inhibitory gene interaction: One gene inhibits the expression of another gene. This can lead to a 13:3 phenotypic ratio Key point-Masking gene action -12:3:1Polymeric gene action-9:6:1Additive gene action-1:4:6:4:1

✅ Explanation- Inversion: An inversion is a chromosomal rearrangement where a segment of a chromosome is reversed end to end. This disrupts the normal gene order and can significantly reduce the frequency of recombination between genes within the inverted region. During meiosis, when chromosomes pair up, an inversion loop forms to allow for proper alignment. Crossing over within this loop can lead to unbalanced gametes (with duplications or deletions), which are often non-viable. This effectively reduces the observed recombination frequency.📌 other options:Mitomycin C treatment: Mitomycin C is a DNA crosslinking agent. It actually increases the frequency of recombination because it causes DNA damage, which the cell tries to repair through recombination mechanisms.Gamma irradiation: Similar to Mitomycin C, gamma irradiation also induces DNA damage and can increase recombination frequency.Larger distance between those genes: The farther apart two genes are on a chromosome, the higher the chance of recombination between them. This is because there's more space for crossing over to occur.

✅ Explanation-Concept:Gene expression refers to the process by which the information in the genes is expressed in the form of a protein product.Regulation of gene expression may take place at various levels and may be controlled by metabolic, physiological, or environmental conditions.One of the regulation mechanisms is a transcriptional regulation system.In prokaryotes, we find polycistronic genes, which are mostly regulated at the transcription initiation site.In a transcription unit, the function of RNA polymerase is regulated by interactions with some regulatory proteins.This is known as an operon system, which can be either positively (by activators) or negatively controlled (by repressors). 🔑 Key Points An operon is a part of genetic material which acts as a single regulated unit having one or more structural genes.The lac operon consists of the following parts:Structural Gene - It consists of 3 genes:z - codes for β-galactosidasey - codes for permeasea - codes for transacetylaseOperator -It is present adjacent to the structural gene.It is the site for the binding of repressor proteins.Regulator -It comprises the i-gene, which codes for the repressor protein.The repressor protein is synthesized all the time constitutively.Promoter -It is the transcription initiation site where RNA polymerase binds.Inducer -It is the molecule that determines whether the repressor will bind to the operator or not.Hence, it regulates the operon.Example - Lactose in lac operon.Lac operon is regulated by a repressor and hence it is a negative regulation.

✅ Explanation- Statement is correct:MAS is a technique that uses molecular markers (specific DNA sequences associated with traits) to accelerate the selection of desirable plants early in the breeding process.Marker-Assisted Selection (MAS) is a technique that involves using molecular markers to identify specific genes or traits in plants.By screening plants at the seedling stage, breeders can quickly identify those with undesirable genotypes and exclude them from further breeding efforts.Molecular markers are employed to identify and select for the desired trait while simultaneously selecting against the donor genome.This approach speeds up the process of recovering the recurrent parent's genetic background while retaining the desired trait.F2 and F2:3 populations are not immortal populations.Immortal populations typically refer to populations of plants that can be maintained indefinitely through vegetative propagation.F2 and F2:3 populations are generations resulting from controlled crosses and sexual reproduction, and they are not maintained indefinitely.

✅ Explanation-A transgenic crop is a crop whose genes have been altered by manipulation. This crop is known as genetically modified crops (GM crops).GM plants can reduce reliance on chemical pesticides (pest-resistance crops).Transgenic means that one or more DNA sequences from another r species have been introduced by artificial means.Transgenic plants can be made by introducing foreign DNA into a variety of different tissues.It is a plant that has a novel combination of genetic material obtained through biotechnology that adds a new quality to the parent crop like herbicide-tolerance. 🔑 Key PointsThe first genetically modified plant was produced in 1982, an antibiotic-resistant tobacco plant.A nematode Meloidogyne incognita infects the roots of tobacco plants and causes a great reduction in yield.A novel strategy was adopted to prevent this infestation which was based on the process of RNA interference (RNAi).RNAi takes place in all eukaryotic organisms as a method of cellular defense.This method involves silencing of a specific mRNA due to a complementary dsRNA molecule that binds to and prevents translation of the mRNA (silencing).The source of this complementary RNA could be from infection by viruses having RNA genomes or mobile genetic elements (transposons) that replicate via an RNA intermediate.🛑 Additional InformationBt Cotton- Some strains of Bt produce proteins that kill certain insects such as lepidopterans, coleopterans, and dipterans.Bt forms protein crystals during a particular phase of their growth.These crystals contain a toxic insecticidal protein.Golden rice-Rice is a staple food in many countries.By inserting two genes from daffodil and one gene from a bacterial species into the rice.Scientists produced rice capable of synthesizing β - carotene.Tomato-Transgenic variety of Tomato - Flavr Savr.Due to inhibition of polygalacturonase enzyme which degrades pectin.So tomato variety remains fresh.

✅ Explanation-Gene ala 3: This seems like it might relate to a specific gene involved in seed production. Antibiosis: This refers to a relationship between organisms where one harms the other. In plants, this is often related to insect resistance. Teosinte: This is the wild ancestor of maize (corn). Linkage drag: This happens when an undesirable gene is inherited along with a desirable gene due to their close proximity on a chromosome. This is a common issue in distant hybridization. Isolation distance: This is the distance required to prevent cross-pollination between different varieties of a crop. This is important for maintaining genetic purity and is related to seed production. ABO blood group: This is a classic example of multiple alleles in humans, where three different alleles (A, B, and O) determine blood type. Eco R1: This is a restriction enzyme, a molecular tool used to cut DNA at specific sequences.

✅ ExplanationPhotosynthesis is a Physico-chemical process by which green plants use light energy to drive the synthesis of organic compounds mainly carbohydrates using carbon dioxide and waterPhotosynthesis takes place in the chloroplastWithin the chloroplast, the membrane system is responsible for trapping the light energy and also for the synthesis of ATP and NADPH.(light reaction). In the stroma, enzymatic reactions synthesize glucose, which in turn forms starch. (dark reaction)Based on the pathway taken by plants to yield sugar, plants can be classified asC3 plants: In these plants, the first stable product is a 3 carbon compound eg. Most plants like rice, wheat, oats, barley, cotton, peanutsC4 plants: These are found in warm regions and have developed mechanisms to prevent excess water, the first stable product is a 4 carbon compound. E.g. Sorghum, soybean, maize, etcDark reactions are not directly light-driven but are dependent on the products of light reactions (ATP and NADPH).Dark reaction is also known as the bio-synthetic phase as glucose(biomolecule) is synthesized in this phase.Melvin Calvin first discovered that the first stable product in C3 plants is 3 Phosphoglyceric acid(3PGA)The cycle that leads to the production of glucose is hence called the Calvin cycleIt consists of 3 steps: carboxylation, reduction, and regeneration.PGA is produced in the first step i.e carboxylation.

Light-independent reaction or Dark reaction:​During the dark reaction of photosynthesis, carbon dioxide is fixed into carbohydrates which is the essence of this phase.This fixation is accomplished with the help of assimilatory power that is generated during the light phase of photosynthesis.ATP and NADPH are the assimilatory power.As the name suggests, the dark reaction does not require light.It takes place in the stroma of the chloroplast where the necessary enzymes required for carbon dioxide fixation are present.There are two pathways for the dark phase according to the type of plant involved:

✅ Explanation-The term "photolysis" refers to the light-dependent splitting of water that results in water oxidation.In the thylakoid lumen of the chloroplast, this activity happens in conjunction with photosystem II.Manganese, calcium, and chlorine are mineral ions required for the photolysis of water.In the photolysis process, oxygen is released as a byproduct of photosynthesis.A water-splitting metal enzyme with at least two manganese atoms per molecule of enzyme oxidises water to yield molecular oxygen.Manganese promotes photosynthesis and nitrogen metabolism enzymes, particularly those engaged in water photolysis to release oxygen. It is absorbed in the form of manganese ions (Mn2+). It activates many enzymes involved in photosynthesis, respiration and nitrogen metabolism.The best-defined function of manganese is in the splitting of water to liberate oxygen during photosynthesis.

✅ Explanation:Carbohydrates (especially glucose) are the most common respiratory substrates in plants. Glucose, which is produced during photosynthesis, is broken down in cellular respiration to release energy in the form of ATP.fats and proteins can also serve as respiratory substrates, they are typically used when carbohydrates are in limited supply. Organic acids are also used, but carbohydrates remain the primary and most readily available energy source for plants.

✅ Explanation-The enzymes required for Glycolysis process are found in Cytoplasm.Glycolysis is an anaerobic process (doesn't require oxygen) in which glucose is broken down to extract energy for cellular metabolism.Glycolysis takes place in the cytoplasm of both prokaryotic and eukaryotic cells.Cytoplasm is a thick solution that fills each cell and is enclosed by the cell membrane. It is mainly composed of water, salts, and proteins. 🛑 Additional InformationNucleus: It controls and regulates the activities of the cell and carries the genes, structures that contain the hereditary information.Lysosome : It is a membrane-bound cell organelle that contains digestive enzymes. They break down excess or worn-out cell parts and can be used to destroy virus, bacteria.Ribosome: These are minute particles consisting of RNA and associated proteins that function to decode the protein message and the form the peptide bonds. Other option explanation Mitochondria:Powerhouses of the cell.Produce ATP through cellular respiration (breaking down glucose with oxygen).Peroxisome:Small organelles.Break down fatty acids and other molecules.Produce hydrogen peroxide.Detoxify harmful substances. Chloroplast:Found in plant cells.Site of photosynthesis (using light to make sugars from CO2 and water).Contain chlorophyll (green pigment that captures light energy)

✅ Explanation- A plant hormone or phytohormone is a chemical substance produced naturally in plants that are translocated to another region for regulating one or more physiological reactions when present in low concentration.While all hormones are plant growth regulators, all plant growth regulators are not hormones.It divided into two groups-Plant growth promoter- Auxins, Gibberellins, and cytokinins.Plant growth inhibitor- Abscisic acid and ethylene.Explanation-Abscisic acid is the first growth inhibitor.ABA was identified by Bennet-Clark and Kefford.ABA is also known as the stress hormone because it protects plants from adverse conditions.ABA causes the stomatal closing under the water stress conditions. Auxins:Help in cell enlargement by increasing the plasticity of the cell wall.Promote the elongation of plant cells.Play a role in apical dominance.Involved in root initiation.Cytokinins:Promote cell division.Delay leaf senescence.Involved in chloroplast maturation and stomatal opening.Regulate the growth of lateral buds and shoot development.Gibberellins:Stimulate stem elongation.Promote seed germination.Involved in flowering.Control various growth processes, particularly the elongation of stems in young shoots.Ethylene:Stimulate fruit ripening.Promote the abscission of leaves, flowers, and fruits.Can determine the sex of flowers in some plants.Involved in stress responses, such as reactions to wounding. Abscisic acid (ABA):Promote bud dormancy.Regulate seed germination.Trigger leaf senescence.Play a crucial role in stress response, particularly drought, by causing stomatal closure.

✅ Explanation- Cytokinin is a category of plant growth substance that promotes cell division, and organ formation, delays senescence, promotes lateral bud development, enhances cell expansion in cotyledon leaves, and promotes chloroplast development.Cytokinin delays senescence in plants.These hormones are responsible for cell proliferation and differentiation, but also affect apical dominance, axillary bud growth, and leaf senescence.The chemical name of cytokinin is zeatin purine.Cytokinin is produced in the root apical meristems and travels upward with water and travels up the stem through the xylem.Cytokinin is the hormone that is vital for cell proliferation and differentiation.

✅ Explanation-Meristems are regions of plant tissue where cells are constantly dividing and growing. They're like the "growth centers" of the plant. Here's a breakdown:Types of MeristemsApical Meristems: Found at the tips of roots and shoots, these are responsible for primary growth, making the plant taller and roots longer.Lateral Meristems: Found in the stems and roots, these are responsible for secondary growth, making the plant wider. The vascular cambium (which produces xylem and phloem) and cork cambium (which produces bark) are examples.Intercalary Meristems: Found at the base of leaves and stems (especially in grasses), these allow for growth in those specific areas, like when grass leaves grow after being cut.

✅ Explanation- A sigmoidal curve (also called an S-curve) is a common pattern seen in many biological processes, including plant growth. It represents a period of slow initial growth (lag phase), followed by a period of rapid, exponential growth (log phase), and then a leveling off as growth slows and eventually stops (stationary phase)This pattern reflects the typical life cycle of a plant:Lag phase: The plant is just starting, establishing roots, and getting resources in order. Growth is slow.Log phase: With resources available and systems functioning, the plant enters a period of rapid growth.Stationary phase: Growth slows down as the plant reaches maturity or encounters limiting factors like nutrient availability or environmental conditions.

✅ Explanation- Water is absolutely crucial for seed germination. Seeds are typically dormant and very dry. Water absorption allows the seed to rehydrate, activate enzymes, and initiate metabolic processes necessary for growth. It also helps soften the seed coat, allowing the embryo to emerge.Key point-Germination of seeds requires normal water, light, oxygen, and heat.Medium temperatures of about 25 to 30 °C are required for seeds to germinate.Oxygen is an important and necessary source of energy for seed growth.Water plays an important role in seed germination.Water is required for germination, most of the mature seeds are extremely dry and need a significant amount of water to absorb and resume cellular metabolism and growth resume.Light is also a necessary condition for seed development.Thus, the most important factors required for seed germination is water, light, oxygen, and temperature. 🛑 Additional InformationSoil:Soil is not a necessary requirement for seed germination.The soil just acts as a support material for the plants.Fertilizer/Nutrient:Fertilizers and nutrients are also not a requirement for seed germination.Seeds have stored food in their cotyledons that are used up during seed germination.After the seeds germinate and leaves are produced they synthesize their own food by the process of photosynthesis.

✅ Explanation- Scarification is the process of breaking, scratching, or mechanically altering the seed coat to make it permeable to water and gases. This process breaks seed dormancy and allows the seed to germinate📌 other options:Emasculation: This is the removal of the male reproductive parts (anthers) from a flower to prevent self-pollination, often used in plant breeding.Separation: This is a general term and doesn't specifically refer to the removal of the seed coat.Stratification: This is a process of exposing seeds to cold and moist conditions to break dormancy, often mimicking natural winter conditions Seed DormancyDefinition: Seed dormancy refers to the inability of a viable seed to germinate, even under optimal conditions for germination.There are certain major causes for the seed dormancy. Listed below are the few reasons for the seed dormancy.LightTemperatureHard Seed CoatPeriod after ripeningGermination inhibitorsImmaturity of the seed embryoImpermeability of seed coat to waterImpermeability of seed coat to oxygenMechanically resistant seed coatPresence of high concentrate solutesTypes of Seed DormancyThe seed dormancy is of following types:Innate dormancyIt is the condition of seeds which is incapable of germination even if conditions suitable for seedling growth are supplied. This inability to germinate may be due in certain species to the embryo being immature at the time of dispersal.Enforced dormancyIt is the condition of seeds which is incapable of germination due to an environmental restraint which includes, an adequate amount of moisture, oxygen, light and a suitable temperature.Induced dormancyThis type of seed dormancy occurs when the seed has imbibed water, but has been placed under extremely unfavourable conditions for germination. Finally, seed fails to germinate even under more favourable conditions.Methods of Breaking Seed DormancyScarification:This involves any treatment (physical or chemical) that weakens the seed coat, making it easier for the seed to germinate.Scarification Treatments:KNO3 (1-3%): Known as one of the strongest dormancy breakers.Thiourea: Primarily used in the case of potato seeds.Stratification:This method involves subjecting seeds to a temperature treatment (chilling).For Chilling Treatment:Seeds should be kept at a temperature of 2-8°C for 12-24 hours.

✅ Explanation-Protoplast: This refers to a plant cell that has had its cell wall completely removed. This is usually done using enzymes that break down the cell wall components (cellulose, hemicellulose, pectin). Protoplasts are often used in plant research and biotechnology.📌 Other options Tonoplast: This is the membrane that surrounds the large central vacuole within a plant cellCytoplast: This term usually refers to the cytoplasm of a cell without the nucleus. Cybrid: This is a hybrid cell produced by fusing the cytoplasm of one cell with the nucleus of another cell.

✅ Explanation-An eating disorder is when a person experiences severe disturbances in eating behaviour.Such as extreme reduction of food intake or overeating, or feelings of intense distress or concern about body weight or shape.Classification of eating disorders:Anorexia Nervosa Bulimia NervosaBinge eating disorder Explanation:PICA means eating non-nutrient or eatable substances like chalk.Commonly occurs in children.Iron deficiency anaemia and malnutrition are two of the most common causes of pica.Sign & Symptom of PICANausea, pain in the stomach Constipation.Diarrhoea, Stomach ulcers🔑 Key point- cattle diseaseFoot and Mouth Disease (FMD): Foot-and-mouth disease virus Bovine Viral Diarrhea (BVD): Bovine viral diarrhea virus Bovine Respiratory Syncytial Virus (BRSV): Bovine respiratory syncytial virus Lumpy Skin Disease: Lumpy skin disease virus (LSDV) Mastitis: Various bacteria (e.g., Staphylococcus aureus, Streptococcus agalactiae, E. coli) Blackleg: Clostridium chauvoei bacteria Brucellosis: Bacteria in the genus Brucella Johne's Disease: Mycobacterium avium subsp. paratuberculosis Tick Fever (Babesiosis): Babesia parasites (transmitted by ticks) Gastrointestinal Worms: Various internal parasites (roundworms, tapeworms, flukes) Grass Tetany (Hypomagnesemia): Low magnesium levels Milk Fever (Hypocalcemia): Low calcium levels Bloat: Rapid fermentation of feed

Explanation- This region of India, particularly Punjab, Haryana, and parts of Rajasthan and Gujarat, is known for its high concentration of well-known milch (dairy) breeds of cattle. Some of the most famous ones include:Sahiwal: Known for high milk yields and heat tolerance.Gir: Another high-yielding breed with a distinctive hump and long ears.Red Sindhi: Known for its rich milk and adaptability to hot climates.Tharparkar: Dual-purpose breed (milk and draught) with good milk production.Hariana: Primarily a draught breed, but also used for milk production. 'Milch breeds' also known as 'milk breeds' are the cows of the breeds, which produce high milk yields and the male animals are slow or poor work animals.The examples of Indian 'milch breeds' are Sahiwal, Gir, Deoni, and Red Sindhi.

✅ Explanation-Pratham holds the distinction of being the world's first buffalo calf born through in vitro fertilization (IVF) technology. This significant achievement took place at the National Dairy Research Institute (NDRI) in Karnal, Haryana, India, in 2009.

🔑 Explanation-Mastitis is the inflammation of the mammary gland (udder) in dairy animals, most commonly caused by bacterial infection. It's a widespread and costly problem for the dairy industry worldwide.Here's why it causes huge economic losses:Reduced milk production: Mastitis can significantly decrease milk yield in affected animals.Lower milk quality: The milk from infected cows may contain bacteria, somatic cells, and other abnormalities, reducing its quality and marketability.Treatment costs: Treating mastitis involves antibiotics, veterinary care, and labor costs.Discarded milk: Milk from infected cows often needs to be discarded during treatment and for a period afterward, leading to further losses.Culling of affected animals: Chronic or severe cases of mastitis may lead to the premature culling of cows, representing a significant loss of investment. 📌 Other option explanation- Milk fever: Metabolic disorder caused by low calcium levels around calving. Teat block: Obstruction of the teat canal, hindering milk flow.

✅ Explanation- It is also known as beauty or anti-sterility vitamin.It acts as an oxidant, helpful in making RBCs, and is necessary for the normal functioning of the reproductive system in both males and females both.The most important sources are vegetable oils, wheat, cottonseed, and animal food.It is also found in green vegetables like alfalfa lettuce i.e. salad etc.Its deficiency destroys the muscles and causes abnormal functioning of the reproductive system in males as well as women.Its other name is Tocopherol. 🔑 Key point – Fat-Soluble Vitamins:Vitamin A – RetinolVitamin D – CalciferolVitamin E – TocopherolVitamin K – Phylloquinone (Vitamin K1), Menaquinone (Vitamin K2)Water-Soluble Vitamins:Vitamin B1 – ThiamineVitamin B2 – RiboflavinVitamin B3 – Niacin (includes Nicotinic Acid and Nicotinamide)Vitamin B5 – Pantothenic AcidVitamin B6 – Pyridoxine Vitamin B7 – Biotin (formerly known as Vitamin H) Vitamin B9 – Folic Acid (or Folate in its natural form) Vitamin B12 – Cobalamin Vitamin C – Ascorbic Acid

✅ Explanation-Amino acids are organic compounds that serve as the building blocks of proteins. Some amino acids contain sulfur atoms, which can play crucial roles in protein structure and function Key point- Amino Acids by Type1. Acidic Amino AcidsExample:AAGA – Aspartic AcidG – Glutamic Acid2. Basic Amino AcidsExamples:HistidineArginineLysine (Deficiency in cereals may lead to cryptic issues)3. Neutral Amino AcidsExample:Glycine4. Aromatic Amino AcidsExamples:TryptophanPhenylalanineTyrosineAlcoholic Amino AcidsThese amino acids contain an OH (hydroxyl) group.Examples:SerineThreonine2. Sulfur-Containing Amino AcidsThese amino acids contain sulfur in their structure.Examples:CysteineMethionine (Deficient in pulses)

✅ Explanation-Indigenous breeds of poultry include Aseel, Ghagus, Busra, and Chittagong. These are small and do not lay too many eggs but have a natural immunity to fight against common diseases.Aseel is an important native chicken breed of India, known for its martial qualities (aggressive fighting abilities), high stamina, pugnacity, and majestic gait. Aseel birds are characterized by multicolored plumage (predominantly dark brown, black, golden, etc.) with solid feather patterns and normal distribution.The skin color is white (98%) with pinkish-red coloration on exposed body parts, especially on the breast.The fertility and hatchability on total eggs were 67.2 and 41.4%, respectively. The popular varieties of Aseel are, Peela (Golden red), Yakub (Black and red), Nuri (White), Kagar (Black), Chitta (Black and white spotted), Java (Black), Sabja (White and golden or black with yellow or silver), Teekar (brown) and Reza (light red).​Here’s the information organized clearly: Chicken Breeds and Their FeaturesRed CornishNative: EnglandFeature: Famous in America for meat productionWhite LeghornNative: ItalyFeature: Highest egg production breed in the worldKadaknathNative: Madhya Pradesh (MP), IndiaFeature: Known for black-colored meat

✅ Explanation-Sahiwal: Native of Montgomery, Pakistan. Highest and sweetestmilk-producing cow breed in India. Due to loose skin, it is known as 'Lola' or'multani'

✅ Explanation-The National Research Centre on Pig is located in (1) Guwahati, Assam.It was established in 2002 with a focus on pig production and health research. 🛑 Additional Information National Research Centres in India:- 1. ICAR-National Research Centre for Banana, Trichi 2. ICAR-National Research Centre for Grapes, Pune 3. ICAR-National Research Centre for Litchi, Muzaffarpur 4. ICAR-National Research Centre for Pomegranate, Solapur 5. ICAR-National Research Centre on Camel, Bikaner 6. ICAR-National Research Centre on Equines, Hisar 7. National Research Centre on Meat, Hyderabad 8. ICAR-National Research Centre on Mithun, Medziphema, Nagaland 9. ICAR-National Research Centre on Orchids, Pakyong, Sikkim 10. ICAR-National Research Centre on Pig, Guwahati 11. ICAR-National Research Centre on Plant Biotechnology, New Delhi 12. ICAR-National Research Centre on Seed Spices, Ajmer 13. ICAR-National Research Centre on Yak, West Kemang

✅ Explanation- Rumen bypass protein is a type of protein that is treated to resist breakdown by microbes in the rumen (the first stomach of ruminant animals). This allows the protein to reach the animal's abomasum (true stomach) and small intestine where it can be digested and absorbed more efficiently. Formaldehyde treatment is a common method used to protect protein in feedstuffs like oil cake. Formaldehyde binds to the protein molecules, making them less susceptible to microbial degradation in the rumen.

✅ Explanation-Animal census (specifically, the Livestock Census) is conducted in India every five years. This census is crucial for gathering data on livestock populations, which helps in planning and implementing animal husbandry and dairying programs.

✅ Explanation- Isolation means segregation of animals, which are known to be or suspected to be affected with a contagious disease from the apparently healthy ones. 📌 Other option explanation- Quarantine is also a related concept, but it specifically applies to animals that are new or arriving from other locations, to ensure they are not carrying any contagious diseases before being introduced to the existing population.Disinfection involves cleaning and sanitizing equipment, facilities, or environments to kill pathogens, not the segregation of animals.Selection refers to the process of choosing animals based on certain traits, and is unrelated to disease control

📌 Explanation-Weeding in animal husbandry refers to the process of removing unproductive or undesirable animals from a herd. This is done to improve the overall quality and efficiency of the herd.📌 other optionsBreeding is the process of selecting and mating animals to produce offspring with desired traits.Feeding is the process of providing animals with the nutrients they need to grow and thrive.Heeding means paying attention to something, which is not relevant in this context.

✅ Explanation- Crazy Chick Disease (Vitamin E Deficiency):Cause: Vitamin E deficiency.Symptoms: Muscular weakness, frequent falling, head and neck pulled backward, paralysis, and eventual death due to starvation.Age affected: Typically occurs in chickens 2 to 3 weeks of age.Explanation: Vitamin E acts as an antioxidant and is essential for maintaining muscle function. Its deficiency can lead to the neurological symptoms you described.🔑 Key point- Curled Toe Paralysis (Vitamin B2 - Riboflavin Deficiency):Cause: Deficiency of Vitamin B2 (Riboflavin).Symptoms: A characteristic curled position of the toes, which makes the affected bird unable to stand or walk properly.Explanation: Riboflavin is crucial for energy metabolism and nerve function. A deficiency can lead to neurological issues like curled toe paralysis.Cannibalism (Sodium Chloride Deficiency):Cause: Deficiency of Sodium chloride (salt).Symptoms: Cannibalistic behavior, such as pecking at each other, especially when salt levels are inadequate in the diet.Explanation: While salt deficiency can lead to behavioral issues like cannibalism, other factors such as overcrowding or inadequate environmental enrichment can also contribute to this behavior.Cracked Feet (Biotin Deficiency):Cause: Deficiency of Biotin.Symptoms: Cracked, damaged, or scaly feet, often due to poor skin and feather quality.Explanation: Biotin is a B-vitamin essential for skin, feathers, and hoof health. A deficiency can cause issues with foot health in poultry.Degnala and Alkali Disease (Selenium Toxicity):Cause: Toxicity of Selenium.Symptoms: These diseases are associated with selenium poisoning, which can lead to symptoms such as lameness, hair loss, and in severe cases, death.Explanation: While selenium is essential for poultry health in small amounts, excessive levels can be toxic and cause conditions like Alkali disease or Degnala, which primarily affects livestock but can also have similar effects on poultry.

✅ Explanation-Indigenous Buffalo Breeds in India:Murrah: This breed is renowned for producing the highest amount of milk among the indigenous buffalo breeds in India. It is primarily found in Haryana, Punjab, and parts of Uttar Pradesh.Mehsana: Known for good milk production, the Mehsana buffalo is native to Gujarat and is used for dairy purposes.Surti: Another milk-producing breed, the Surti buffalo is found in Gujarat and is also well-regarded for its milk yield.Other Indigenous Buffalo Breeds:Bhadawari: Found in Uttar Pradesh, Bhadawari buffaloes are known for their strength and moderate milk production.Jaffarabadi: A breed from Gujarat, they are valued for their milk production, as well as their adaptability to harsh conditions.Nagpuri: Found in Maharashtra, Nagpuri buffaloes are good for both milk and draught purposes.Nili-Ravi: Native to the Punjab region, this breed is prized for high milk yields and quality.Toda: A native breed from the Nilgiri Hills, though less common for milk, the Toda buffalo is of cultural significance.🛑 Additional InformationSwamp buffaloes are predominant in Southeast Asia and Australia.Bubalus Bublis buffalo also known as the water buffalo or Asian water buffalo is a large bovid originating in the Indian subcontinent.Wild Water buffalo are commonly known as the descendants of domesticated Bubalus Bublis buffalo.

✅ Explanation- Yeast is used in the bakery industry primarily for the production of carbon dioxide (CO2) gas. During fermentation, yeast consumes sugars in the dough and produces CO2 as a byproduct. This gas causes the dough to rise and gives baked goods their characteristic texture and volume Yeast is used in making bread and other bakery products and the process involved is called as fermentation. 'Yeast' breaks down sugar into alcohol and carbon dioxide in the absence of Oxygen. This process is called as anaerobic respiration. The 'carbon dioxide' forms bubble in dough increasing its volume

✅ Explanation-.Kresek is a severe phase of bacterial leaf blight in rice. It primarily affects young seedlings, causing them to wilt and die rapidly. The leaves of infected seedlings turn yellow and wither, and the entire plant may collapse. Key point – Rice Bacterial Blight – Caused by Xanthomonas oryzae.Rice Bacterial Leaf Streak – Caused by Xanthomonas oryzae pv. oryzicola.Rice Grain Discoloration – Caused by Xanthomonas oryzae.Rice Sheath Blight – Caused by Rhizoctonia solani (fungal, not bacterial).5.Rice Blast – Caused by Magnaporthe oryzae.

✅ Explanation-White rust of crucifers is a fungal disease that can cause both local and systemic infections in plants.Local infection: isolated spots or pustules appear on the stem and upper leaf surface which later combine or merge to form patches.Systemic infection: this infects the young stem and inflorescence of plants, which results in various types of deformities like Hypertrophy, due to which distortion and swelling are seen.Oospores produced by the fungus are the main cause of this diseaseInfection is generally favoured by a cool (13-18o C) environment.White rust disease is caused by a fungus called Albugo candida or Cystopus candidus.Albugo Candida belongs to the class Phycomycetes (group oomycetes) of Fungi.This disease mainly affects the members of the Cruciferae family-like Mustard, Cress, Rape, Radish, Cabbage, Cauliflower, turnip, etc

✅ Explanation- Clamp connection" is found in the genus Basidiomycota (a division of fungi), specifically in fungi that belong to the order Agaricales, like the genera Ustilago and Puccinia, which are plant pathogens.Clamp connections are specialized structures found in dikaryotic hyphae of certain fungi, particularly in basidiomycetes. These structures help in maintaining the dikaryotic state (two genetically distinct nuclei) during cell division, which is crucial for the sexual reproduction of these fungi.📌 other options:Pythium and Phytophthora are oomycetes (water molds). They cause diseases like root rot and downy mildew in plants.Erysiphe is a genus of ascomycetes, responsible for powdery mildew diseases,

✅ Explanation- Oyster mushrooms belong to the genus Pleurotus, which includes several edible species commonly cultivated for their culinary and medicinal properties.🔑 Key point-White Button - Agaricus bisporusOyster - PleurotusPaddy - VolvariellaShiitake - LentinulaMilky - CalocybeBlack Ear – Auricularia

✅ Explanation-.Alternaria Early Blight (caused by Alternaria solani):Hosts: Primarily affects tomatoes and potatoes.Symptoms: Characterized by dark, concentric lesions on leaves, stems, and sometimes fruits. The lesions can lead to premature defoliation, which reduces plant vigor and yield.Management: Crop rotation, use of resistant varieties, and fungicide application🛑 Additional InformationPythium:It belongs to the oomycete.It has filamentous sporangia.It causes damping off and rots.It affects the capsicum plant.Albugo candida:It belongs to the oomycete.It causes white rust.It is the parasitic fungi on mustard.Colletotrichum:It belongs to Deuteromycetes.It is imperfect fungi.It is also known as Gloeosporium fungi.It causes spots on the fruits..Synchytrium (Potato Wart) (caused by Synchytrium endobioticum):Hosts: Potatoes.Symptoms: It causes the formation of wart-like growths (galls) on tubers, which can affect the quality and yield. These galls often appear on the surface of potatoes.Management: The disease is soil-borne and regulated in many areas due to its devastating effects on potatoes. Control measures include resistant varieties and sanitation practices, and affected fields may be quarantined.Phoma Wilt (caused by Phoma spp.):Hosts: Affects various crops, including beans, tomatoes, and cucumbers.Symptoms: It can cause wilting, stem lesions, and root rot. The fungal infection can lead to a decline in the plant's health, resulting in reduced growth and yield.Management: Fungicides, crop rotation, and the removal of infected plant debris are recommended.Puccinia Rust (caused by Puccinia spp.):Hosts: Affects a wide range of plants, including wheat, barley, and other grasses.Symptoms: Characterized by the presence of orange, yellow, or brown pustules on the leaves and stems. Rust fungi can cause significant yield losses in cereal crops.Management: Resistant crop varieties, crop rotation, and fungicides.. Ustilago Smut (caused by Ustilago spp.):Hosts: Affects various crops, including corn (maize) and sorghum.Symptoms: The disease causes the formation of smut galls, which are swollen, discolored growths on the plant. These galls can contain masses of black spores that disrupt normal plant development.Management: Resistant varieties, seed treatments, and crop rotation.

✅ Explanation- Muriform conidia have both transverse and longitudinal septa, creating a multi-celled structure that resembles a brick wall.Dictyospore is another term for this type of conidium.Alternaria is well-known for producing these distinctive muriform conidia.The other options have different types of spores:Fusarium produces mostly fusiform (spindle-shaped) or sickle-shaped conidia.Phytophthora and Pythium are oomycetes (water molds) and produce zoospores,

✅ Explanation- Loose smut control: Seed treatment is essential as the fungus depends on the seed for survival and carries over from one season to another.Vitavax seed treatment: Apply Vitavax at a rate of 2.5 g per kg of seed before planting to prevent loose smut.Solar heat treatment: In hot summer areas, solar heat treatment is effective for making seed disease-free.Solar treatment procedure:Soak seed in water for 4 hours in the morning (last week of May or first week of June).Dry the soaked seed under the hot sun in the afternoon.Effect of solar treatment: The soaking activates dormant fungus, and the heat of the sun kills it.Storage: Store the well-dried seed for use in the next wheat season.🔑 Key point-Fungal Diseases:Rusts: Stem rust: Puccinia graminis f. sp. triticiLeaf rust: Puccinia triticinaStripe rust: Puccinia striiformis f. sp. triticiSmuts: Loose smut: Ustilago triticiCommon bunt (stinking smut): Tilletia caries, Tilletia foetidaKarnal bunt: Tilletia indica

✅ Explanation-Fungi belonging to the order Peronosporales are known to cause downy mildew diseases in various plants. These are water molds, or oomycetes, and they thrive in wet conditions.the 📌 other options:Rusts are caused by fungi in the order Pucciniales (formerly Uredinales).Smuts are caused by fungi in the order Ustilaginales.Powdery mildews are caused by fungi in the order Erysiphales.Key point- Earcockle Disease of WheatCaused by: Anguina tritici Root-Knot of BrinjalCaused by: Meloidogyne incognita Wilt of Pigeon PeaCaused by: Fusarium udum Rust of CrucifersCaused by: Albugo Downy MildewCaused by: Peronospora Wart Disease of PotatoCaused by: Synchytrium endobioticum Wood RotCaused by: Polyporus Covered Smut of SorghumCaused by: Sphacelotheca sorghil Early Leaf Spot in PeanutCaused by: Cercospora arachidicola

✅Explanation-.Pythium is a genus of oomycetes that produce zoospores inside vesicles. These zoospores are released into the environment and can infect plants, causing various diseases.

✅ Explanation-Thrips are small insects that can transmit a variety of plant viruses, including Tomato spotted wilt virus. They feed on plant sap and can pick up the virus from infected plants and then transmit it to healthy plants.Key point-Viruses and VectorsWheatStreak Mosaic-MitesMaizeMosaic-BugRiceGrassy Stunt-Brown Plant Hopper (BPH)GroundnutRosette- AphidBule Necrosis- Thrips PigeonpeaSterility Mosaic-MitesBhindi (Okra)Yellow Vein Mosaic-WhiteflyTomatoLeaf Curl-WhiteflyChilliLeaf curl-WhiteflyMosaic-WhiteflyPotatoLeaf Roll-AphidBananaBunchy Top-AphidCitrusTristeza-AphidPapayaMosaic-Aphid CardamomKatte (likely "Katte" refers to a form of disease or pest)-AphidCottonLeaf Curl-Whitefly MangoMalformation-Bud Mite

✅ Explanation-H.H. Flor proposed the gene-for-gene hypothesis, which describes a specific interaction between plant resistance genes and pathogen avirulence genes. This interaction often leads to a hypersensitive response in the plant, limiting the pathogen's ability to infect and spread.🔑 key point-Thomas Fairchild (1717)Developed the first inter-specific hybrid between sweet william and carnation species of Dianthus.Rimpu (1890)Made the first inter-generic cross between bread wheat (Triticum aestivum) and rye (Secale cereale), resulting in the birth of Triticale.DT-46 is a variety of Triticale.Jones, D.F. (1917)Made a double cross in maize.Used genetic male sterility in the development of maize hybrids.Vavilov, N.I.Identified the center of origin of crops.Recognized 8 main centers and 3 sub-centers of crop diversity.Nagaharu, U (1935)Created tetraploid species of Brassica, leading to the development of the “U's triangle” in crop genetics.Harrington, J.B. (1937)Proposed the mass pedigree method of breeding, which is a modification of the pedigree method.Flor, H. N. (1956)Developed the concept of gene-for-gene hypothesis in flax, especially in relation to flax rust caused by Melampsora lini.Vander Plank, J.E. (1963)Developed the concepts of vertical and horizontal resistance in plant breeding.Donald, C.M. (1968)Worked on the concept of crop ideotype, specifically for wheat breeding

✅ Explanation- Green Ear Disease:A common fungal disease of millet, reported in countries such as India, Iran, Israel, China, Fiji, Japan, and other regions where millet is grown.Also known as Downy Mildew or 'Green Ear', it is a highly destructive disease, particularly affecting pearl millet in Asia and Africa, where it is cultivated as both a food and fodder crop.The disease is soil-borne and caused by the fungus Sclerospora graminicola. 🛑 Additional Information on Millet:Rajasthan is the largest producer of millet in India.Maharashtra ranks as the second-largest producer of millet in India.Bajra (pearl millet) is primarily grown as a Kharif season crop in North India.Millet is commonly referred to as pearl millet.Sandy loam soil is considered ideal for millet cultivation.

✅Explanation-Scientific Name: Patanga succincta (also known as Cyrtacanthacris succincta and Nomadacris succincta) Habitat: Native to India and Southeast Asia Behavior: Typically solitary but can exhibit swarming behavior Historical Swarm: The last known plague in India occurred between 1901 and 1908, with no swarms reported since 1927.

✅ Explanation-quantity of Malathion 50 EC required for mixing with 250 liters of water to obtain a 0.05% spray solution is 250 ml.

✅ Explanation-Carbofuran is commonly available in granular form, making it suitable for application to soil to control a wide range of pests, including soil insects and root-feeding pests.The other options are typically used in liquid formulations:Malathion: Often used as a liquid spray for controlling various pests.Acephate: Commonly used as a liquid insecticide for foliar application.Diclorvos: Usually available as a liquid or aerosol formulation.

✅ Explanation- Khapra beetles are known for their ability to survive in harsh conditions, including high temperatures and low humidity. They can infest stored grains and other food products, causing significant damage.Khapra beetle (Trogoderma granarium) is a stored grain pest of Wheat, maize, jowar, rice, pulses, oil seeds and their cakes. Symptoms:​Grub damages the grain starting with germ portion, surface scratching and devouring the grain.It reduces the grain into frass.Excessive moulting results in loss of market value due to insanitation caused by the cast skin, frass and hair.Crowding of larvae leads to unhygienic conditions in warehouses.Damage is confined to peripheral layers of bags in bulk storage. Control:Fumigation with methyl bromide is the most effective treatment.Powdered neem has been used to control the beetle in wheat stores in India.Neem powder repels many insects due to its strong odor, but generally does not kill insects.However, it is still useful in protecting crops from infestations.🔑 Key point-Primary Pests (Direct Feeders)Rice Weevil: Sitophilus oryzaeLesser Grain Borer: Rhyzopertha dominicaAngoumois Grain Moth: Sitotroga cerealellaPulse Beetle: Callosobruchus chinensisKhapra Beetle: Trogoderma granariumSecondary Pests (Indirect Feeders)Red Flour Beetle: Tribolium castaneumIndian Meal Moth: Plodia interpunctellaSaw-toothed Grain Beetle: Oryzaephilus surinamensis

✅ Explanation-Cultural control refers to practices that manipulate the environment to reduce pest populations or make the environment less favorable for pests. Using resistant varieties is a classic example of cultural control. By planting crops that are naturally resistant to specific pests, farmers can reduce the need for chemical pesticides and other control measures.📌 other options:Legal control: This involves government regulations to control pests, such as quarantines or restrictions on pesticide use.Chemical control: This involves using pesticides to kill or repel pests.Biological control: This involves using natural enemies, such as predators or parasites, to control pests.

✅ Explanation-Pink boll worm: Pectinophora gossypiella, Gelechidae: Lepidoptera Most destructive pest of cotton.The caterpillars are pink in colour and found inside the flower buds. panicles and the bolls of cotton.Symptoms: Damage done by caterpillar in various ways there is excessive shedding of the fruiting bodies. Rosette flower is characteristic symptoms. The total shedding is caused by all the boll worms collectively one half may be due to the attack of pink boll worm. Double seed formation: The two adjoining seed are joining together within damaged boll by pink boll worm.Management: Growing of Bt. cotton varieties is the effective method for boll worm complex. Destruction of cotton sprouts, alternative host plants or burning of the plant debris. Larval: Parasitoid Bracon greeni, Chelonus pectinophorae.📌 Other option explanation-Spotted boll worm- Earias insulena/vitella, Noctuidae: Lepidoptera. It is serious pest of cotton and okra. A series of longitudinally black spots on the body with dull green colour and having tiny stout bristles are the main identification mark of spotted boll worm.Symptoms: Causeheavy shedding of fruiting bodies. Flare square' (Flare-up) is characteristic symptoms. (JRF-07) In the attacked bolls the lint is spoiled by larval feeding. The infected bolls open prematurely and produce poor lint resulting in lower market valuesRed cotton bug: Dysdercus singulatus, Pyrrhocoridae: American boll worm: Helicoverpa armigera, Noctuidae. Lepidoptera.

✅ Explanation- Ploughing the field is an effective method to control red hairy caterpillars. This is because it disrupts the life cycle of the pest by exposing the pupae and larvae to predators and unfavorable environmental conditions.📌 Other option explanation-2. Trenching Around the FieldTrenching around the field can help in preventing the spread of pests into the field. It can also act as a barrier, making it harder for pests like the Red Cotton Bug and bollworms to migrate from nearby areas.3. Burning the LarvaeBurning infested crop residues or the larvae helps to kill pests and their eggs, reducing the chances of future infestations. This is a common method for controlling pests in fields where other chemical or biological controls are difficult to implement.4. Trap CropsTrap crops are used to attract pests away from the main crops. By planting crops that pests like the Red Cotton Bug or American Bollworm prefer, you can draw the pests away from your main crop, thereby reducing damage. These crops can then be destroyed or treated to reduce pest populations.

✅ Explanation-Shoot flies are a major pest of maize. They lay their eggs at the base of the maize plant. When the larvae hatch, they burrow into the growing point of the plant, damaging the central shoot. This damage causes the shoot to wither and die, leading to the characteristic "dead heart" symptom.

✅ Explanation-Hymenoptera is the order of insects that includes sawflies, wasps, bees, and ants. Sawflies are characterized by their saw-like ovipositor, which they use to insert eggs into plant tissue.🔑 Key point- Coleoptera (Beetles) – Coptotermes formosanus (Formosan subterranean termite) Lepidoptera (Moths and Butterflies) – Danaus plexippus (Monarch butterfly) Diptera (Flies and Mosquitoes) – Anopheles gambiae (Anopheles mosquito) Hymenoptera (Bees, Wasps, Ants) – Apis mellifera (Honeybee) Hemiptera (True Bugs) – Aphis gossypii (Cotton aphid) Orthoptera (Grasshoppers, Crickets, Locusts) – Caelifera viridissima (Green grasshopper) Dermaptera (Earwigs) – Forficula auricularia (European earwig) Isoptera (Termites) – Coptotermes formosanus (Formosan termite) Trichoptera (Caddisflies) – Phryganea striata (Common caddisfly) Neuroptera (Lacewings, Antlions) – Chrysopa carnea (Green lacewing) Thysanura (Silverfish) – Lepisma saccharina (Common silverfish)

✅ Explanation- The most commonly cultivated species of lac insect is Kerria lacca. These insects secrete a waxy resin that is harvested and used to make shellac and lac. Lac is used in dyes, cosmetics, wood finishing, and polishes. The Indian lac insect is called Laccifer lacca. It is mostly found in tropical regions on banyan and other plants.

Explanation: In the case of diesel engine during suction stroke, pure air is drawn by the piston. This air is compressed and at the end of the compression stroke, fuel is injected in the cylinder.

✅ Explanation-Where:Q = Discharge (cubic meters per second)L = Length of the weir crest (meters)H = Head over the weir crest (meters)This equation is derived from the Francis formula, which is commonly used for calculating flow rates over weirs. The Cipoletti weir has specific dimensions and a discharge coefficient that results in this particular equation

✅ Explanation-1 Hectare = 10000 m21 m2 = 10000 cm21 litre = 1000 cm3Important Points1 Hectare = 10000 m2 = 10000 x 10000 cm2 = 100000000 cm21 Hectare cm = 100000000 cm2 cm = 100000000 cm3100000000 cm3 = 100000 litreHence, the quantity of water in the one-hectare centimetre will be 100000 litres.

✅ Explanation-Firing order:The firing order is the sequence in which the power stroke takes place in each cylinder in a multi-cylinder engine.The firing order in which cylinder deliver their power strokes is selected as a part of the engine design to obtain the best engine performance.The firing order is shown by the sequence of the number of cylinders in which the cylinders deliver their power strokes.The nearest cylinder to the radiator is designated as the number one cylinder in an inline engine.The firing order of the multi-cylinder engine:Three cylinders: 1 - 3 - 2Four cylinders: 1 - 3 - 4 - 2Five cylinders: 1 - 3 - 5 - 4 - 2Six cylinders: 1 - 5 - 3 - 6 - 2 - 4Eight-cylinder inline engine: 1 - 8 - 7 - 3 - 6 - 5 - 4 - 2

✅ Explanation-The tilt angle in a disc plough typically ranges from 15° to 25°. This angle determines the depth of ploughing and the degree of soil inversion. A higher tilt angle results in deeper ploughing and more aggressive soil inversion, while a lower angle results in shallower ploughing and less soil inversion.

✅ ExplanationThis is because the swing basket water lift is a type of irrigation pump that is most efficient when the water level is relatively shallow. If the water level is too deep, the pump will have to work harder to lift the water, which can reduce its efficiency.Here are some other factors that can affect the suitability of a swing basket water lift:Flow rate: The flow rate of the pump should be matched to the needs of the irrigation system.Head: The head is the vertical distance that the water needs to be lifted. The swing basket water lift is most suitable for low to medium head applications.Power source: The pump should be powered by a reliable source of electricity or fuel.

✅Explanation-An off-set disc harrow is commonly used in orchards because it can work efficiently between the tree rows, which helps in maintaining the soil, controlling weeds, and breaking up soil clods without damaging the trees. It is designed to be offset to one side, which allows the tractor to work in the orchard rows without causing interference with the trees, especially in narrow spaces.While other types of harrows, such as tandem disc harrows or blade harrows, can also be used in some orchard settings, the off-set disc harrow is often preferred for its maneuverability and suitability for orchard conditions.

✅ Explanation-To find the amount of water discharged in one hour, we need to convert the flow rate from cubic meters per minute to liters per hour.Here's how:Convert cubic meters to liters:1 cubic meter = 1000 litersConvert minutes to hours:1 hour = 60 minutesNow, let's calculate:Flow rate in liters per minute:0.8 m³/min * 1000 liters/m³ = 800 liters/minFlow rate in liters per hour:800 liters/min * 60 min/hour = 48,000 liters/hour

✅ Explanation- A differential lock is primarily used in tractors to improve traction on slippery or uneven surfaces such as mud, snow, or loose soil. It helps both wheels on an axle rotate at the same speed, which is particularly useful when one wheel loses traction, as can happen on muddy terrain.

✅ Explanation- Purpose: Used to measure the flow of water in open channels.Sections:Converging Section: The inlet, where flow is restricted and directed toward the throat.Throat: The narrowest part of the flume, where flow accelerates and flow rate is measured.Diverging Section: The outlet, where the flow decelerates, and the water returns to normal conditions.Accuracy:Lab Conditions: +/- 2% accuracy.Field Conditions: Closer to +/- 5% accuracy due to real-world variables.Measurement Principle: Flow rate is determined by measuring the water height at specific locations, which is correlated with flow using calibration curves. Applications: Used in agricultural irrigation, wastewater treatment plants, and hydrological monitoring systems.Development: Developed by V.A. Parshall in 1922, based on the Venturi flume design.

✅ Explanation- Dibbling is a manual method of sowing seeds, where small holes are made in the soil using a pointed tool, and then seeds are dropped into these holes. This method is often used for crops like maize, cotton, and vegetables.

✅ Explanation-When both demand and supply increase by the same amount, the equilibrium quantity will increase, but the equilibrium price will remain unchanged. This is because the increase in demand and supply balance each other out, leaving the price at the same level.

✅ Explanation-Indifference Curve: A graphical representation showing different combinations of two goods that provide the same level of satisfaction or utility to a consumer.Key Features:Each point on the curve represents a combination of two goods where the consumer is indifferent between them.Consumers derive equal satisfaction or utility from any combination of goods on the curve.Properties:Non-intersecting: Indifference curves never intersect. If they did, it would imply that two different combinations of goods give the same satisfaction, which is illogical.

✅ Explanation-An Engel curve shows the relationship between the quantity demanded of a good and the income of the consumer. It illustrates how the consumption of a good changes as income increases.Here are the other options and their meanings:Lorenz curve: This curve shows income inequality within a population.Demand curve: This curve shows the relationship between the price of a good and the quantity demanded.

✅ Explanation- Autonomous Demand (Direct Demand): The demand for a product that is independent of the demand for other products. It is driven solely by the consumer's need or desire for that particular product.Other option explanation- Derived Demand: The demand for a product that arises due to the demand for other products. For example, the demand for raw materials (like steel) is derived from the demand for finished products (like cars). Cross Demand: The demand for a product that is influenced by the price or cost of other related goods. For example, the demand for tea may be affected by the price of coffee. Joint Demand: The demand for products that are used together in the production or consumption process. For example, the demand for an oven, fuel, and flour mill is jointly linked in the production of bread. Composite Demand: The demand for a product that serves multiple purposes or is used for more than one cause. For example, water has composite demand as it is used for drinking, irrigation, industrial purposes, and more.

✅ Explanation-Price Elasticity of Demand (PED): Calculated by dividing the percentage change in quantity demanded by the percentage change in price. It measures how responsive the quantity demanded is to a change in price.1.Elastic Demand:Elastic: When the absolute value of PED is greater than 1, demand is elastic. This means quantity demanded changes faster than the price change. Consumers are very responsive to price changes.2.Inelastic Demand:Inelastic: When the absolute value of PED is less than 1, demand is inelastic. This means quantity demanded changes slower than the price change. Consumers are less responsive to price changes.3.Unitary Elastic Demand:Unitary Elastic: When the absolute value of PED is exactly 1, demand is unitary elastic. This means the percentage change in quantity demanded is equal to the percentage change in price.4.Perfectly Elastic Demand:Perfectly Elastic: When PED is infinite, demand is perfectly elastic. Even a small price change results in an infinitely large change in quantity demanded. Consumers will buy any amount at one price but none at any other price.5.Relatively Elastic Demand:Relatively Elastic: When the proportionate change in demand is greater than the proportionate change in price, demand is relatively elastic. The PED value falls between 1 and infinity.

✅ Explanation- Monopoly: A market dominated by a single company with no competition, allowing control over prices and supply. Other term Monopolistic Competition: A market with many firms offering similar but differentiated products, each with some pricing power.Oligopoly: A market dominated by a few large firms whose pricing and output decisions are interdependent.

✅ Explanation-According to the law of supply, there is a positive relationship between the price of a commodity and its quantity supplied.This means that as the price increases, the quantity supplied also increases, and as the price decreases, the quantity supplied decreases.

✅ Explanation- The nominal price refers to the per unit cost of production of output at the current market price. It is the price at which a good or service is sold without adjustments for inflation or other factors.Other option explanation Market Price:This refers to the price at which a good or service is bought and sold in the market at a given time, determined by supply and demand forces. Real Price:The real price is the price of a good or service adjusted for inflation, reflecting its true value over time, rather than its nominal or market value.

✅ Explanation-Average fixed cost:It is the fixed cost that remains the same with the change in the number of goods and services produced by a company. It is calculated by dividing the total fixed cost by the output level.Average fixed cost (AFC) equals total fixed cost (FC) divided by output (Q):AFC = FC / Q ;AFC: Average fixed costFC: Fixed cost.Q: Output.When the production increases, the average fixed cost per unit decreases.Whilst, when the production decreases, the average cost per unit increases.Important Points AFC is defined as the ratio of TFC to output.We know that TFC remains constant throughout all the output levels and as output increases, with TFC being constant, AFC decreases. TFC remains fixed at all level of output, with the rise in output, AFC fall.Since TFC is never 0, the AFC curve does not touch X-Axis and it does not touch Y-axis because, at zero level of output, TFC is positive. Thus the shape of the AFC curve is a rectangular hyperbola.

✅ Explanation-When average production is at maximum, it means the firm is operating at its most efficient level. At this point, the average variable cost (AVC) is at its minimum. This is because the firm is able to spread its variable costs over a larger output, reducing the cost per unit.

✅ Explanation-PM Narendra Modi is the Chairperson of NITI Aayog.The NITI Aayog (National Institution for Transforming India) is a policy think tank of the Government of India, formed on January 1, 2015. Headquarters: New Delhi🛑 Additional InformationNITI Aayog replaced Planning Commission with emphasis on the 'Bottom - Up' approach to envisage the vision of Maximum Governance, Minimum Government.On 7 June 2018, the Prime Minister approved the reconstitution of NITI Aayog to include Ex-officio members and Special Invitees consisting of Experts and Specialists with domain knowledge.There will be a maximum of five Ex-Officio members and three Special Invitees from the Union Council of ministers nominated by the Prime Minister.The Governing Council of NITI Aayog, with the Prime Minister as its Chairman, comprises Chief Ministers of all States and Lt. Governors of Union Territories (UTs).

✅ Explanation- The LAC-curve is U-shaped and it is often called the 'envelope curve' because it 'envelopes' the short-run cost curve. The curve long-run average cost curve (LRAC) takes the scallop shape, which is why it is called an envelope curve.

✅ Explanation- Consumer surplus is an economic measurement of consumer benefits. Consumer surplus happens when the price that consumers pay for a product or service is less than the price they're willing to pay.Other option explanation-Consumer Benefit: This typically refers to the advantages or satisfaction that consumers gain from purchasing and consuming goods and services.Producer Benefit: This refers to the gains or advantages that producers (or sellers) get from selling goods or services, often in terms of profits or revenues.Producer surplus is the difference between the price at which a producer is willing to sell a good or service and the price they actually receive. It represents the benefit to producers for selling at a higher market price than their minimum acceptable price.

✅ Explanation- CompoundingCompounding is the process of calculating the future value of an investment by applying interest or returns to both the initial principal and the accumulated interest from previous periods. This allows the investment to grow over time.Here's a brief explanation of the 📌 other options:Depreciation: The reduction in the value of an asset over time, typically due to wear and tear or obsolescence.Discounting: The process of determining the present value of a future amount by applying a discount rate.Appreciation: The increase in the value of an asset or investment over time.

✅ Explanation- product differentiation is a distinguishing feature of monopolistic competition. Product differentiation is the process of distinguishing a product or service from others to make it more attractive to a target market. It can involve differentiating a product from competitors' products or from a firm's other products. Other option explanation- Imperfect competition: This is a broad category that includes monopolistic competition, oligopoly, and monopoly. It doesn't specifically refer to product differentiation.  Perfect competition: In perfect competition, firms sell identical products and have no control over prices. Product differentiation doesn't exist in this market structure.  Monopoly market: A monopoly has a single seller with no close substitutes, so product differentiation isn't relevant.

✅Explanation-, Dr. K. N. Singh is known as father of Extension in the Indian context. The teaching of extension education at undergraduate level started in the year 1950 at the College of Agriculture, Calcutta University.J. P. Leagans of USA is known as the father of extension

✅ Explanation-The 'Training, and Visit System' of new agricultural extension was initially developed by Daniel Benor. This programme was first used extensively by the World Bank in India in early 1970s, following a field trail in a project in Turkey.

✅ Explanation-(4) Krishi Vigyan Kendra (KVK).On-farm testing is an important activity of Krishi Vigyan Kendras (KVK). These centers are involved in testing and validating agricultural technologies under real field conditions, which helps in refining agricultural practices and making them more adaptable to local needs. KVKs conduct on-farm testing to evaluate the performance of various agricultural technologies, such as new crop varieties, integrated pest management, or improved farming techniques, directly with farmers.Here's a brief explanation of the 📌 other options:Operational Research Project (OPR): While this involves research activities, National Demonstration Project (NDP): This focuses more on demonstrations rather than on testing new technologies in the farmers' own fields.Lab to Land Programme (LLP): While it aims to take scientific knowledge from the laboratory to the farm, it is not primarily about on-farm testing.

✅ ExplanationPradhan Mantri Fasal Bima Yojana (PMFBY) became operational in Kharif 2016.Total 18 companies are involved in PMFBY.Insurance companies have to pay 12% interest rates per annum for delay in settlement claims.Premium subsidy sharing pattern:Centre and north Easter states: 90:10Remaining states: 50:50.Premium rates: Key point- Kharif:All food grains and oilseeds (All cereals, millets and oilseeds, and pulses)Maximum insurance charges payable by a farmer: 2.0% of SI or actual rate, whichever is less Rabi:All food grains and oilseeds (All cereals, millets and oilseeds, and pulses)Maximum insurance charges payable by a farmer: 1.5% of SI or actual rate, whichever is less Kharif and Rabi:Annual commercial/Annual horticultural cropsMaximum insurance charges payable by a farmer: 5.0% of SI or actual rate, whichever is less Annual commercial/Annual horticultural crops:Maximum insurance charges payable by a farmer: 5.0% of SI or actual rate, whichever is less

✅ Explanation-The tagline "Sowing Skills, Harvesting Opportunities" is associated with the Agricultural Skill Development Council of India (ASCI). ASCI is focused on improving the skills of individuals in the agricultural sector to enhance employment opportunities and foster growth in agriculture-related careers. This aligns with the concept of "sowing skills" to "harvest opportunities."Here’s a brief overview of the 📌 other options:National Employability Enhancement Mission (NEEM): A scheme aimed at improving employability through industry-specific skills but is not associated with the tagline.Employability Enhancement Training Programme (EETP): Focuses on enhancing employability but is not linked to this specific tagline.Jawahar Rojgar Yojana (JRY): An older employment scheme aimed at providing wage employment, but it does not use this tagline.

✅ Explanation- The Nilokheri Experiment was a project initiated to rehabilitate displaced persons who had migrated from Pakistan to India after the partition in 1947. The project was established in Nilokheri, Haryana, and aimed to provide shelter, livelihood, and agricultural rehabilitation to these displaced persons, helping them settle and rebuild their lives🛑 Additional Information Gurgaon Project (HR)Associated Person: F.L. Brayne, 1920 Shantiniketan Associated Person: M.D. Tagore, 1920Initially started in 8 villages of West Bengal. shriniketanAssociated Person: Rabindranath Tagore, 1921 Rural Reconstruction SchemeDaniel Hamilton 1903Marthandam Project, Spencer HatchAssociated Person: Mahatma Gandhi, 1921Sewagram (Wardha)Shri mahatma Gandhi 1920 Etawali Pilot Project (UP)Associated Person: Albert Maver, 1948 Nilokheri ExperimentAimed at the rehabilitation of 7,000 immigrants from Pakistan.Associated Person: SK Dey, 1948  Firka DevelopmentAssociated Person: T. Prakashan, 1946-1952 Community Development2 oct 1952 National Extension Service2 oct 1953 Indian Village SchemeAssociated Person: T. Mosher, B. N. Gupta, 1945 Young Farmer AssociationAssociated Person: P. Deshmukh Father of ExtensionAssociated Person: Leagnes (J.P. Liggins) National Demonstration SchemeAssociated Person: Kafwar and Subramanian IADP (Intensive Agricultural District Programme)Associated Person: July 1960 ICDP (Intensive Cattle Development Project)Associated Person: 1963-66 HYV Programme (High-Yielding Variety Programme)Associated Person: 1966-67 Green RevolutionAssociated Person: 1966-67 DPAP (Drought Prone Area Programme)Associated Person: 1970 T&V (Training and Visit) SystemAssociated Person: Daniel Benor, 1974 CADP (Command Area Development Programme)Associated Person: 1974 IRDP (Integrated Rural Development Programme)Associated Person: 1978 IRDP, TRYSEM, DWACRA, SITRA merged into SGSY (Swarnajayanti Gram Swarozgar Yojana)1978 Lab to Land Programme1 June 1979 Nationalization of BanksAssociated Person: 1969 IADP (Intensive Agricultural District Programme).july 1960 Concept of DemonstrationAssociated Person: Dr. Seaman A. Knapp, 1885 Father of Extension in India Associated Person: KN Singh MANAGE (National Institute of Agricultural Extension Management)Location: Hyderabad, 1986

✅ Explanation- Time line is an important PRA method quite commonly used to explore the temporal dimensions from historical perspective. Time line captures the chronology of events as recalled by local people. It is drawn as a sequential aggregate of past events.

✅ Explanation-The use of Information and Communication Technology (ICT) by the government to promote greater participation of the people in the process of governance is called e-governance. E-governance is the use of ICT to provide government services, exchange information, and integrate existing services and information portals. It aims to make things easier for citizens, the government, and businesses at the local, state, and national levels.Here’s a brief explanation of the 📌 other options:Government e-Marketplace (GeM): An online platform for public procurement where government departments can purchase goods and services.e-Chaupal: An initiative by ITC to use the internet to provide rural farmers with information on various agricultural practices and market prices.Gyandoot: A rural internet project in Madhya Pradesh aimed at delivering government services to rural areas.

✅ Explanation- in the S-M-C-R-E model of Communication, C stands for (4) Channel.Here’s a breakdown of the S-M-C-R-E model:S - Sender: The person or entity who initiates the communication.M - Message: The content or information being conveyed.C - Channel: The medium through which the message is transmitted (e.g., face-to-face, television, radio, internet).R - Receiver: The individual or group who receives and interprets the message.E - Effect: The result or outcome of the communication process (such as a change in understanding or behavior).🛑 Additional Information-Models of Communication:Shannon-Weaver Model (1949)Source → Transmitter → Signal → Receiver → DestinationLasswell Model (1948)Who says What → In which Channel → To whom → Under what circumstances → With what effectBerlo Model (1960)Source → Encoder → Message → Signal → Decoder → ReceiverSchramm Model (1961)Communication Source → Encoder → Signal → Decoder → DestinationFano Model (1963)Source → Encoder → Channel → Encoder → Channel → Source → Decoder → UserLeagans Model (1963)Communicator → Message → Channel → Treatment → Audience → Audience ResponseLetterer Model (1965)Sender → Channel → Receiver → NoiseRogers and Shoemaker Model (1971)Source → Message → Channel → Receiver → EffectHartley-Ebrenel ModelCommunicator → Communication → Content → Effect → Intent Aristotle ModelSpeaker → Speech → Audience

✅ Explanation-Preventive innovation refers to innovations or actions that are implemented by people or organizations to reduce or lower the probability of unwanted or negative outcomes in the future. This type of innovation is focused on foreseeing potential risks or issues and addressing them proactively to prevent adverse consequences.

✅ Explanation-Situational Theory of Leadership suggests that leaders emerge or exhibit leadership based on the specific circumstances or situation they are in. In this case, leaders emerging during a flood in a village is an example of situational leadership, where individuals step up to lead due to the urgent and challenging situation (the flood). The leadership is context-dependent, and the leader's qualities and behaviors are shaped by the needs of the situation rather than inherent traits or a predefined style.

✅ Explanation-The steps in the extension program planning process are:Collecting factsAnalyzing the situationIdentifying problemsDetermining objectives and goalsDeveloping a plan of work and calendar of operationsFollowing through with the plan of work and calendar of operationsEvaluating progressReconsidering and revising the program

✅ Explanation- Front Line Demonstrations (FLDs) are conducted under the supervision of scientists of the National Agricultural Research System (NARS), typically associated with Krishi Vigyan Kendras (KVKs) and other agricultural research institutions. These demonstrations are part of the efforts to showcase the latest agricultural technologies and practices to farmers in real-field conditions, with the aim to improve productivity and promote new methods.While other personnel, such as Agriculture Supervisors and Program Assistants of the KVKs, may play roles in supporting and facilitating these demonstrations, the scientists from the NARS are responsible for planning, supervising, and guiding the technical aspects of the Front Line Demonstrations.

✅ Explanation- Complexity is not a characteristic of effective written communication. In fact, it can hinder effective communication. Clear, concise, and straightforward writing is generally more effective than complex and convoluted language.Other option explanation- Correctness ensures that the language, grammar, and facts are accurate. Completeness means the message provides all necessary information. Clarity ensures that the message is easy to understand.

✅ Explanation- The Biological Diversity Act, 2002 (commonly known as the Biodiversity Act) came into existence in the year 2002. This Act was enacted to conserve biological diversity, sustainable use of its components, and fair and equitable sharing of benefits arising from the use of biological resources, particularly in the context of traditional knowledge and practices (often referred to as Indigenous Traditional Knowledge - ITK). Other option explanation-The Geographical Indications of Goods (Registration & Protection) Act: Came into force in 2003, for the protection of geographical indications.Protection of Plant Varieties & Farmer's Rights Act: Came into force in 2001 to protect the rights of farmers and breeders over plant varieties.Scheduled Tribes and Other Traditional Forest Dwellers (Recognition of Forest Rights) Act: Came into force in 2006 to recognize and vest forest rights in forest dwellers.

✅ Explanation- Buttoning in cauliflower is caused by a deficiency of nitrogen. Buttoning is a symptom of a disorder where the curd of the cauliflower is small and opens up while the plant is still smallKey point – Fruit cracking in apple/ internal necrosis of Aonia - Boron Hen & chicken disease of grape - Boron Hollow heart/ heart rot of sugar beet - Boron Fruit cracking of pomegranate/bael - Boron Necrosis/ black tip of mango - Boron Die back, little leaf & gummosis of citrus - Copper Whiptail of cauliflower - Molybdenum Buttoning of cauliflower - Nitrogen Grey spike of oat/ Pahaia blight of sugarcane - Manganese Khaira disease of rice & white bud of maize -Zinc

✅ Explanation-.Striga gesnerioides is a parasitic weed that attacks the roots of cowpea plants, causing significant damage and yield loss. It's known as a hemi-parasite because it can photosynthesize on its own but relies on the host plant for water and nutrients.Key point- Stem Parasites: After emergence, these parasites attach to the stem of the host crops. There are two types:Total Stem Parasite:These parasites lack chlorophyll and derive food from the host plant.Example: Dodder (Cuscuta spp.)Host Plants: Lucerne, Onion, Carrot, Chilly, Pulses, Soybean, Groundnut, Niger, Fennel, etc.Semi or Partial Stem Parasite:These parasites have chlorophyll but depend on the host for water, minerals, and nutrients.Example: Loranthus (Dendrophthoe spp.)Host Plants: Plantation crops, fruit crops, and timber trees (e.g., Mango, Tea, Teak, etc.). Root Parasites: These parasites attach to the roots of the host to derive food and nutrients.Total Root Parasite:These parasites do not produce their own food and depend entirely on the host for nutrition.Example: Broomrape (Orobanche spp.)Host Plants: Tobacco, Tomato, Potato, Brinjal, Mustard, Sunflower, Pea, Oak, Beans, etc.Semi or Partial root parasite: Witch weed (Striga spp.). Host ants: Millets. Maize. Sorghum. Sugarcane. Rice etc

✅ Explanation-An inflorescence is the arrangement of flowers on a floral axis. It's essentially a cluster of flowers. The sunflower has a unique type of inflorescence called a capitulum or head. In this arrangement, numerous tiny flowers (florets) are densely packed together on a flat, rounded receptacle. 🔑 Key point-  Raceme: Radish, Mustard, Cauliflower, Brinjal. Panicle: Rice, Maize, Jowar, Pear, Finger millet. Spike: Wheat, Barley, Oats. Corymb: Cabbage, Carrot, Turnip. Umbel: Onion, Garlic, Coriander, Carrot. Head (Capitulum): Sunflower, Chrysanthemum, Cucumber. Solitary Flower: Cotton, Chili, Tomato, Okra. Thyrse: Grapevine, Coconut, Mango, Chili.

✅Explanation- Water Use Efficiency (WUE):It refers to the yield of a marketable crop produced per unit of water used in evapo-transpiration. It is also defined as the dry matter produced per unit of water used and is generally expressed as kg/ha-mm.Types of Water Use Efficiency:Crop Water Use Efficiency (WUE - Crop):It is the ratio of crop yield (Y) to the amount of water depleted by the crop in the process of evapo-transpiration (ET).Formula:WUE (Crop) = Y / ETField Water Use Efficiency (WUE - Field):It is the ratio of crop yield (Y) to the total amount of water used in the field (which includes both effective rainfall and irrigation water).Formula:WUE (Field) = Y / WRWhere:Y = Crop yield (in kg or tons per hectare)ET = Evapo-transpiration (in mm)WR = Water used in the field (including irrigation and rainfall, in mm) 🛑 Additional Information  Highest water use efficiency is observed in this order CAM> C3>C4 plants. CAM plants: Crassulacean acid metabolism photosynthesis is a carbon fixing pathway adapted in plants that grow in an arid climate. examples: cactus, jade plant, etc. C3 plants: examples are cowpea, cassava, soybean, and rice, etc C4 plants: examples are maize, millet, sorghum, and sugar cane, etWater Use Efficiency of Major Field Crops (kg/ha-mm): Wheat - 12.6 kg/ha-mmRice - 3.7 kg/ha-mm (lowest)Sorghum 9.0 kg/ha-mmPear millet - 8.0 kg/ha-mmMaize - 8.0 kg/ha-mmFinger millet - 13.4 kg/ha-mm Groundnut - - 9.2 kg/ha-mm

✅ Explanation- Indian hard wheat is known for its high protein content, typically ranging from 12-14%. This high protein content is ideal for making bread as it contributes to the gluten formation, which gives bread its structure and texture.Other types of wheat, like Indian pissi wheat, Indian sona wheat, and Indian amber wheat, generally have lower protein content and are more suitable for making chapatis, rotis, and other flatbreads.

Saline Soil: It typically has a pH less than 8.5, an Electrical Conductivity (EC) greater than 4 dS/m, and a Sodium Absorption Ratio (SAR) less than 13. The Exchangeable Sodium Percentage (ESP) is usually less than 15 in saline soils. 🔑 Key point- Parameters of Different Problematic Soils:Alkaline Soil:pH: >8.5EC (dS/m): <4ESP (%): <15Saline Soil:pH: <8.5EC (dS/m): >4ESP (%): <15Sodic Soil:pH: <8.5EC (dS/m): <4ESP (%): >15Saline-Sodic Soil:pH: <8.5EC (dS/m): >4ESP (%): >15

 Tomato Fruit Cracking: Caused by Boron (B) deficiency. Tomato Blotchy Ripening: Caused by Potassium (K) deficiency. Tomato Blossom End Rot (BER): Caused by Calcium (Ca) deficiency. Tomato Cut Face Disorder: Associated with Flake disorder (cause not specified). Tomato Golden Disorder: Related to Flake disorder (cause not specified). Cauliflower Buttoning: Caused by Nitrogen (N) deficiency. Cauliflower Hollow Stem: Caused by Excess Nitrogen (N). Cauliflower Whiptail: Caused by Molybdenum (Mo) deficiency. Cauliflower Browning: Caused by Boron (B) deficiency. Carrot Cavity Spots: Caused by Calcium (Ca) deficiency.

✅ Explanation- Kaolinite is the dominant clay mineral in red soils. Red soils are typically rich in iron and aluminum oxides and have a low to medium content of kaolinite, which contributes to their characteristic red color.

Madhya Pradesh is the state in India with the highest area under certified organic agriculture. It has made significant strides in promoting organic farming practices and has a substantial portion of its agricultural land dedicated to organic cultivation🔑 Key Points The total area under organic certification process which is registered under National Programme for Organic Production (as on March 2020 data) is 3.67 million Hectare (2019-20). This includes 2.299 million Hectare cultivable area and another 1.37 million Hectare for wild harvest collection. Among all the states, Madhya Pradesh has covered largest area under organic certificationo ​Followed by Rajasthan>Maharashtra>Gujarat>Karnataka>Odisha>Sikkim>Uttar Pradesh. In 2016, Sikkim achieved a remarkable mark of converting its entire cultivable land under organic certification.o ​It was more than 75000 Hectar.🛑 Additional Information Production:o Among different states Madhya Pradesh is also the largest producer.o Followed by Maharashtra>Karnataka>Uttar Pradesh>Rajasthan.o In terms of commodities Oil seeds are the single largest category to be produced. Export: o Organic products are exported to USA, European Union, Canada, Switzerland, Australia, Japan, Israel, UAE, New Zealand, Vietnam etc

✅ Explanation- This information is based on the Fertiliser Control Order (FCO) of 1985, which specifies the minimum nutrient content for various fertilizers sold in India

✅ Explanation-Lower Gangetic PlainsThis region holds about 8% of the total basin area and completely contained in the 15 districts of West Bengal.The soils are mostly alluvial and are prone to floods.The region is rich in water and soil resources and has a low productivity level and high population pressure beyond carrying capacity.The region mainly has a rice-based cropping system with Hilsa fish culture and buffalo, black Bengal goat and Garol sheep are reared.The northern part of this plain has been formed by the sediment deposited by the Tista, Jaldhaka and Torsa.It is characterised by a humid climate with high temperature throughout the year.River basins or alluvial or loamy soils are best for jute cultivation.Almost 85% of the world's jute cultivation is concentrated in the Ganges Delta.The best soil for growing paddy is the Clayey soil as they can hold the water due to their very fine particle size.The humid climate with a high temperature of lower Gangetic plain is most suitable for Paddy and Jute. According to the Planning Commission of India, the 15 agro-climatic zones are:- Zone 1- Western Himalayan Region: Jammu and Kashmir, Uttar Pradesh Zone 2 - Eastern Himalayan Region: Assam, Sikkim, West Bengal, and all North-Eastern states Zone 3 - Lower Gangetic Plains Region: West Bengal Zone 4 - Middle Gangetic Plains Region: Uttar Pradesh, Bihar Zone 5 - Upper Gangetic Plains Region: Uttar Pradesh Orissa and West Bengal Zone 6 - Trans-Gangetic Plains Region: Punjab, Haryana, Delhi, and Rajasthan Zone 7 - Eastern Plateau and Hills Region: Maharashtra, Uttar Pradesh Zone 8 - Central Plateau and Hills Region: MP, Rajasthan, Uttar Pradesh Zone 9 - Western Plateau and Hills Region: Maharashtra, Madhya Pradesh, and Rajasthan Zone 10 - Southern Plateau and Hills Region: Andhra Pradesh, Karnataka, Tamil Nadu Zone 11 - East Coast Plains and Hills Region: Orissa, Andhra Pradesh, Tamil Nadu, and Pondicherry Zone 12 - West Coast Plains and Ghat Region: Tamil Nadu, Kerala, Goa, Karnataka, Maharashtra Zone 13 - Gujarat Plains and Hills Region: Gujarat Zone 14 - Western Dry Region: Rajasthan Zone 15 - The Islands Region: Andaman and Nicobar, Lakshadweep

✅ Explanation-Diallyl disulfide is the primary compound responsible for the pungent flavor and odor of garlic. When garlic cloves are crushed or chopped, enzymes within the cells react with compounds called alliin, releasing allicin. Allicin then breaks down into various sulfur compounds, including diallyl disulfide 🔑 Key pont- Bitterness in Pepper: OleoresinGreen Colour in Potato Tubers: SolanineOdour in Garlic (Injured): AllicinOdour in Garlic (Uninjured): Amino acid-AlliinaseOdour in Onion: Allyl propyl disulphideOrange Colour in Carrot: CarotenePungency in Capsicum: CapsaicinPungency in Radish: IsothiocyanatePungency in Turnip: calcium oxlateRed Colour in Carrot: AnthocyaninRed Colour in Chilli: CapsanthinRed Colour in Onion: AnthocyaninRed Colour in Tomato: LycopeneYellow Colour in Onion: QuercetinYellow Colour in Turmeric: CurcuminAcridity in Colocasia: Calcium oxalateYellowing in Papaya: Carica xanthiumBitterness in Almonds: AmygdalinBitterness in Bael: MarmelosinRancidity in Aonla: Tannin/Ellagic Acid/Galic AcidYellowing in Papaya: PolyphenolBitterness in Colocasia: Calcium oxalateBitterness in Bitter Gourd: MomordicosideBitterness in Gourd: Cucurbitacin

✅ Explanation- Aonla (Indian Gooseberry) produces a capsule-type fruit. This type of fruit has a dry, leathery outer covering that encloses seeds. 🔑 Key point-  Pericarp:Ber, Grapes Mesocarp:Papaya, Mango Endosperm:Coconut Thalamus:Apple, Strawberry Placenta:Bael Fleshy aril:Litchi Bracts:Pineapple Juicy seed coat:Pomegranate Juicy placental hairs:Citrus Fleshy receptacle:Fig

✅ Explanation- This means that Arka Aruna is a hybrid variety created by crossing the Banganapalli and Alphonso mango varieties. 🔑 Key point- Arka AnmolCross: Alphonso × Janardan Pasand (AJA)Arka PuneetCross: Alphonso × Banganpalli (ABA)Arka ArunaCross: Banganpalli × Alphonso (BAA)RatnaCross: Neelam × Alphonso (NAR)AmrapaliCross: Dasheri × Neelani (DNA)SindhuCross: Ratna × Alphonso (RAS)MallikaCross: Neelam × Dasheri (NDM)Sai SugandhaCross: Totapuri × Kesar (TKS)AmbikaCross: Amrapali × Janardan Pasand (AJA)

✅ Explanation-Arka Harit is a variety of (3) Bitter gourd. It is a high-yielding, disease-resistant variety developed by the Indian Council of Agricultural Research (ICAR).

✅ Explanation-Boron plays a crucial role in several plant processes, including cell wall formation, pollen tube growth, and sugar transport. When boron is deficient, it can lead to various symptoms in Chrysanthemum, such as:Petal burn: The tips and edges of petals turn brown and necrotic.Reduced flower size and number: The overall quality and quantity of flowers are affected.Stunted growth: The plant's overall growth is inhibited.To prevent petal burn and other boron deficiency symptoms in Chrysanthemum, it's essential to maintain adequate boron levels in the soil through proper fertilization.

✅ Explanation-Jam:1: Ripe and thick, flaccid fruits are used.2: Pectin is not as important as acid.3: It is opaque.4: Sugar is added according to acid content (68.5% sugar).5: Prepared from mixing of fruits.6: End point temperature: 219-221°F.7: Total Soluble Solids (TSS): 68.5%.8: Acid should be 0.5-0.6%.Jelly:1: Used firm and 3/4th mature fruits.2: Pectin is necessary (0.5-1%). Pectin is tested by Alcohol and Jelmeter.3: It is transparent.4: Sugar is added according to pectin content (65-70%).5: Fruits are not mixed.6: End point temperature: 221-222°F.7: Total Soluble Solids (TSS): >65%.8: Fruit acid should be 1%.

✅ Explanation-Black heart is a physiological disorder that affects potato tubers. It is caused by a lack of oxygen, which leads to the death of cells in the center of the tuber. The affected area turns black and becomes soft and mushy.

✅ Explanation-Gerberas are typically propagated through division, where a mature plant is carefully divided into smaller sections, each with roots and shoots, which are then replanted to grow into new plants.

✅ Explanation-Pusa Jwala is a variety of chili pepper specifically bred for its high capsaicin content, making it ideal for the extraction of capsaicin

✅Explanation-"Flaming Sunset" is a variety of Gerbera (Gerbera jamesonii). It is known for its vibrant, colorful blooms that often feature a mix of red, orange, and yellow, resembling a sunset. This variety is popular for cut flowers and ornamental purposes

✅ Explanation- Vetiver is typically propagated through clump division. This method involves separating clumps of the plant, each with roots and shoots, and replanting them to grow into new plants.

✅ Explanation- Vetiver is typically propagated through clump division. This method involves separating clumps of the plant, each with roots and shoots, and replanting them to grow into new plants.

✅ Explanation-Cytoplasmic male sterility (CMS) in maize was discovered by Rhoads in 1928. He observed that certain strains of maize were male sterile due to the interaction between the cytoplasm and the nuclear genes, which led to male sterility in the plants. This discovery has been fundamental in developing hybrid maize varieties.:Cytoplasmic male sterility (CMS) is found mostly in higher level plants like cotton, sugarcane, cabbage, potato etc. Usually, the Cytoplasmic male sterility occurs in plants, those in which the cytoplasmic genes are mutated.

✅ Explanation-In Oenothera species, heterosis (hybrid vigor) is naturally fixed through a balanced lethal system. This system involves specific genetic combinations that are lethal when homozygous but viable when heterozygous. As a result, heterozygous individuals with hybrid vigor are maintained in the population.

Key point- Rice: Male sterility source - WA (Wild Abortive), Chinsurah Boro.Wheat: Male sterility source - Triticum timopheevii, Triticum cawdorii.Maize: Male sterility source - CMS-C, CMS-T (T = Texas).Pearl Millet (Bajra): Male sterility source - Tifton L-66 A, Geron.Sorghum: Male sterility sources - Kafir, Durra, Milo.Brassica: Male sterility sources - Ogura, Nigar, Palima, Jancea, Tournefortii, Diplotaxis.Cotton: Male sterility sources - CMS-A, Gregg 399, G. harknessii.Sunflower: Male sterility source - PET.Pigeonpea: Male sterility sources - A, A2.

✅ Explanation-The Ph gene, responsible for suppressing homologous pairing in wheat, is located on chromosome 5B. This gene plays a crucial role in wheat genetics and breeding programs. The Ph1 gene prevents recombination between wheat and alien chromosomes, which can limit the transfer of alien genes into wheat. To overcome this, researchers use a deletion mutant of the Ph1 locus, called ph1b, to induce homoeologous recombination. The closest relative of the wheat B genome is Aegilops speltoides, which has two major suppressor loci, Su1-Ph1 and Su2-Ph1, that can increase homeologous chromosome pairing.