Crop Ecology/Physiology, Agro Climatic Zones & Cropping Systems Unit Test — Agri Master Mind
Which of the following is not a primary pigment involved in photosynthesis?
- a) Chlorophyll a
- b) Chlorophyll b
- c) Carotenoids
- d) Xanthophylls
In C4 plants, the primary carbon fixation enzyme is:
- a) Rubisco
- b) PEP Carboxylase
- c) Phosphoenolpyruvate synthase
- d) ATP Synthase
In which part of the plant does the process of germination usually begin?
- a) Root tip
- b) Shoot tip
- c) Cotyledons
- d) Seed coat
The process of movement of sugars from source to sink in plants is primarily driven by:
- a) Active transport
- b) Osmosis
- c) Transpiration pull
- d) Pressure flow mechanism
......... (crop) based cropping system is predominant in low lands of India
- a) Sugarcane
- b) Jute
- c) Wheat
- d) Rice
Yearly sequence and spatial arrangement of crops and fallow on a given area is called
- a) Cropping system
- b) Crop rotation
- c) Cropping pattern
- d) Mixed cropping
The scientific integration of different interdependent and interacting farm enterprises for efficient use of resources is called
- a) Mixed farming
- b) Mixed cropping
- c) Farming system
- d) None of these
Growing two or more crops simultaneously in strip wide enough to permit independent cultivation but narrow enough for the crops to interact agronomically is called
- a) Mixed intercropping
- b) Row intercropping
- c) Relay intercropping
- d) Strip intercropping
The largest cropping system in India is
- a) Rice-wheat
- b) Rice-pulses
- c) Rice-rice
- d) Wheat-rice
One of the major limitations in rice-wheat cropping system is
- a) Delayed wheat sowing
- b) Delayed rice sowing
- c) Early rice sowing
- d) Early wheat sowing
The alternate crop to rice during rabi both in command and well irrigated areas of south India is
- a) Sugarcane
- b) Wheat
- c) Sesame
- d) Groundnut
The objective of mixed farming is
- a) Subsistence
- b) Profitability
- c) Ecological balance
- d) None of these
Judicious mix of one or more enterprises with crops is called
- a) Cropping system
- b) Farming system
- c) Both a and b
- d) None of these
Intercrop suited most in sugarcane crop is
- a) Rice
- b) Maize
- c) Castor
- d) Short duration pulses
When component crops in the cropping system is equally competitive, aggressivity index is
- a) 1
- b) 0
- c) 2
- d) (−)1
Predominant cropping system in West Bengal and parts of Bihar is
- a) Jute-wheat
- b) Jute-potato
- c) Jute-rice-wheat
- d) All of these
If the value of relative crowding coefficient is greater than one it indicates
- a) Yield advantage in mixing
- b) Yield disadvantage in mixing
- c) No difference in mixing
- d) None of these
.. refers to demonstration of identified crops and their varieties so that the farmers may select right plant type based on their liking
- a) Crop demonstration
- b) Crop cafetaria
- c) Front line demonstration
- d) None of these
Efficient cropping zone is that where both yield and spread index of crop are above
- a) 100%
- b) 125%
- c) 150%
- d) 200%
Growing of a crop after the failure of main crop is called
- a. Cash crop
- b. Cover crop
- c. Catch crop
- d. Trap crop
The cropping intensity of rotation of maize-potato-wheat rice-wheat will be
- a. 200%
- b. 250%
- c. 350%
- d 300%
Cropping intensity of India is around
- a. 130%
- b. 135%
- c. 140%
- d. 145%
The intensity of crop rotation may be indicated by
- a. Number of crops x 100 Duration of rotation
- b. Number of crops x duration of rotation 100
- c. Number of crops x 100
- d. None of these
Farming of crops and animals together is known as
- a.Mixed cropping
- b. Relay cropping
- c. Mixed farming
- d. None of these
The desired Land Equivalent Ratio (LER) for beneficial intercropping is
- a. 1
- b. > 1
- c. <1
- d. None of these
The yield advantage in an intercropping system can be measured by
- a. Land Equivalent Ratio
- b. Competition Coefficient
- c. Leaf Area Index
- d. Leaf Area Ratio
What is crop rotation?
- Growing more than one crop at a time
- Growing of crops in rotation with legumes to maintain soil fertility
- Growing of an associate crop in between the rows of main crop
- Growing of crops together in strips
The basic principal of taking crop rotation is
- a. To get higher crop production
- b. To get higher returns per unit area of the soil
- c. To maintain the fertility status of the soils
- d. To keep the weeds under control
Intercropping is a system of cropping to make the maximum use of
- a. Solar energy
- b. Water resources
- c. Soil resource
- d. All of these
Relay cropping is
- a. A system of cropping where one crop hands over the land to the next crop in a quick succession
- b. A system of cropping where two or three crops are grown annually
- c. A system of cropping where two or three crops are grown together by mixing the seeds
- d. A system of cropping where an associate crop is grown in between the rows of principal crop
The most effective cropping system for returning mineral elements to the soil is
- a. Monocropping
- b. Crop rotation
- c. Double cropping
- d. Relay cropping
The crops grown during summer are known as
- a. Rabi
- b. Kharif
- c. Zaid
- d. None of these
In a sub-tropical area if the average rainfall is 400-500 mm, which of the following crop is most suitable to cultivate?
- a. Paddy
- b. Maize
- c. Sorghum
- d. Cotton
Cropping intensity means
- a. Ratio of gross cropped area to net cropped area x 100
- b. Ratio of net cropped area to gross cropped area x 100
- c. Ratio of number of crops in rotation to period of one rotation x 100
- d. None of these
Which of the following refers to cover crop?
- a. Rapid growing crops grown to protect the soil from rain and wind action
- b. Tall growing crops which protects the shade loving crops
- c. Growing of a crop in strips all around the main crop
- d. Crops grown at right angle to the direction of prevailing winds
Which of the following is the pre-requisite for multiple cropping?
- a. Irrigation facility
- b. Intensive use of fertilizers
- c. Availability of HYV
- d. All of these
The term 'Cropping Scheme' refers to
- a. Allotment of crops to the pieces of land on a farm
- b. Allotment of crop rotations to the pieces of land on a farm
- c. Planning and budgeting of the crop production on a farm
- d. Planning of schedules for different farm operations
"Trap Crops" refer to
- a. Crops grown around the main crop which are more susceptible to insect, pest and diseases than the main crop
- b. Crops which are resistant to pest and diseases
- c. Crops efficient in trapping solar radiation
- d. Crops efficient in trapping rainfall.
In a intercropping system, the maize and blackgram yield was obtained 1800 and 500 kg/ha, where sale price was Rs. 12 and 60/kg, respectively. Find out maize equivalent yield (kg/ha).
- a. 3500
- b. 4300
- c. 4200
- d. 5300
The pure crop yield of chickpea and mustard was 2000 and 1800 kg/ha, respectively. When these crops grown in intercropping the chickpea and mustard yield was obtained 1500 and 1200 kg/ha, respectively. Find out LER
- a. 0.42
- b. 1.42
- c. 2.42
- d. 3.42
Cropping intensity of maize-potato-wheat is
- a. 100%
- b. 200%
- c. 300%
- d. 400
Sustainability Yield index value lies between:
- a. 0 to 1
- b. 1 to 0
- c. 1 to 2
- d. None of these
Alley cropping is known as:
- a. Hedge row intercropping
- b. Ley farming
- c. Intercropping
- d. Mixed cropping
If dry matter yield in 30 days is 500 g and in 45 days is 750 g, what is the crop growth rate?
- a. 20 g/day
- b. 33.3 g/day
- c. 22.5 g/day
- d. 16.6 g/day
Calculate LER when sole crop yield is 50 & 40 q/ha and inter crop yield is 20q/ha & 10q/ha in intercropping system:
- a. 0.65
- b. 1.30
- c. 1.00
- d. 1.60
What is the real value of seed when viability is 90 per cent and germination per cent is 80 per cent?
- a. 52
- b. 72
- c. 82
- d. 92
The concept of plant ideotype was given by:
- a. C.M. Donald
- b. S.S. Bains
- c. N.G. Dastane
- d. J.B. Fourler
In which cropping system zero-tillage was used first time
- a. Maize-Wheat
- b. Rice-Rice
- c. Wheat-Rice
- d. Rice-wheat
The concept of 'Aggressivity' was given by
- a. Vil Morin
- b. Mc Gilchrist
- c. Skoog
- d. Robinson
Which of the following is the primary site of photosynthesis in plants?
- A. Roots
- B. Leaves
- C. Stems
- D. Flowers
Which pigment is primarily responsible for capturing light energy during photosynthesis?
- A. Carotenoids
- B. Anthocyanins
- C. Chlorophyll
- D. Xanthophylls
What is the main product of the Calvin cycle in photosynthesis?
- A. Oxygen
- B. ATP
- C. NADPH
- D. Glucose
Which plant hormone is primarily responsible for cell elongation?
- A. Auxin
- B. Gibberellin
- C. Cytokinin
- D. Ethylene
Which process involves the loss of water vapor from plant leaves?
- A. Photosynthesis
- B. Respiration
- C. Transpiration
- D. Translocation
What is the role of stomata in plant leaves?
- A. Water absorption
- B. Gas exchange
- C. Nutrient transport
- D. Structural support
Which mineral nutrient is essential for chlorophyll synthesis?
- A. Iron
- B. Magnesium
- C. Calcium
- D. Phosphorus
What is the process by which plants convert light energy into chemical energy?
- A. Respiration
- B. Fermentation
- C. Photosynthesis
- D. Transpiration
Which plant hormone is involved in the ripening of fruits?
- A. Auxin
- B. Gibberellin
- C. Cytokinin
- D. Ethylene
Which structure in the plant cell contains chlorophyll?
- A. Mitochondria
- B. Nucleus
- C. Chloroplast
- D. Ribosome
What is the primary function of the root system in plants?
- A. Photosynthesis
- B. Nutrient absorption
- C. Pollination
- D. Seed dispersal
Which part of the plant is responsible for transporting water and nutrients from the roots to the leaves?
- A. Phloem
- B. Xylem
- C. Cambium
- D. Cortex
What is the term for the growth response of a plant to light?
- A. Hydrotropism
- B. Geotropism
- C. Thigmotropism
- D. Phototropism
Which plant hormone promotes seed dormancy?
- A. Auxin
- B. Abscisic acid
- C. Cytokinin
- D. Gibberellin
Which process describes the movement of sugars from leaves to other parts of the plant?
- A. Transpiration
- B. Respiration
- C. Photosynthesis
- D. Translocation
What is the main component of the plant cell wall?
- A. Cellulose
- B. Starch
- C. Protein
- D. Lipids
Which type of respiration occurs in the absence of oxygen?
- A. Aerobic respiration
- B. Anaerobic respiration
- C. Fermentation
- D. Photosynthesis
What is the function of the plant hormone gibberellin?
- A. Inhibits growth
- B. Promotes fruit ripening
- C. Stimulates stem elongation
- D. Induces seed dormancy
Which gas is released as a by-product of photosynthesis?
- A. Carbon dioxide
- B. Oxygen
- C. Nitrogen
- D. Methane
What is the main energy currency in plant cells?
- A. NADPH
- B. Glucose
- C. ATP
- D. FADH2
Which element is crucial for nitrogen fixation in legumes?
- A. Calcium
- B. Potassium
- C. Sulfur
- D. Molybdenum
Which process describes the uptake of water by plant roots?
- A. Osmosis
- B. Diffusion
- C. Active transport
- D. Transpiration
Which term describes the plant's growth response to gravity?
- A. Phototropism
- B. Geotropism
- C. Hydrotropism
- D. Thigmotropism
What is the main function of phloem tissue in plants?
- A. Transport water
- B. Transport nutrients
- C. Transport sugars
- D. Provide structural support
Which pigment protects plants from harmful UV radiation?
- A. Chlorophyll
- B. Carotenoids
- C. Flavonoids
- D. Anthocyanins
Which enzyme is involved in carbon fixation in the Calvin cycle?
- A. Rubisco
- B. ATP synthase
- C. Hexokinase
- D. Phosphofructokinase
What is the primary source of energy for photosynthesis?
- A. Glucose
- B. ATP
- C. Sunlight
- D. Oxygen
Which plant structure is responsible for anchoring the plant and absorbing water and nutrients?
- A. Leaves
- B. Stems
- C. Roots
- D. Flowers
What is the main role of carotenoids in photosynthesis?
- A. Capture light energy
- B. Protect chlorophyll from damage
- C. Transport electrons
- D. Fix carbon dioxide
Which plant hormone is primarily responsible for promoting seed germination?
- A. Auxin
- B. Gibberellin
- C. Cytokinin
- D. Abscisic acid
What is the process by which plants release water vapor into the atmosphere?
- A. Respiration
- B. Transpiration
- C. Photosynthesis
- D. Translocation
Which of the following is a C4 plant?
- A. Wheat
- B. Rice
- C. Corn
- D. Barley
Which molecule is the final electron acceptor in the electron transport chain of photosynthesis?
- A. Oxygen
- B. NADP+
- C. FAD
- D. ADP
What is the main role of ATP in cellular processes?
- A. Structural support
- B. Energy storage
- C. Genetic information
- D. Catalyzing reactions
Which process converts atmospheric nitrogen into a form usable by plants?
- A. Nitrogen fixation
- B. Nitrification
- C. Denitrification
- D. Ammonification
Which molecule acts as the primary carrier of chemical energy in cells?
- A. Glucose
- B. ATP
- C. NADPH
- D. FADH2
Which plant process involves the conversion of glucose into energy?
- A. Photosynthesis
- B. Transpiration
- C. Respiration
- D. Germination
Which part of the plant is primarily involved in sexual reproduction?
- A. Roots
- B. Stems
- C. Leaves
- D. Flowers
What is the main function of the cuticle in plant leaves?
- A. Gas exchange
- B. Water absorption
- C. Protection from water loss
- D. Photosynthesis
Which of the following is a micronutrient essential for plant growth?
- A. Nitrogen
- B. Phosphorus
- C. Potassium
- D. Zinc
Which plant tissue is responsible for transporting organic nutrients?
- A. Xylem
- B. Phloem
- C. Epidermis
- D. Cortex
What is the role of guard cells in plants?
- A. Transport water
- B. Photosynthesis
- C. Control the opening and closing of stomata
- D. Nutrient absorption
Which process describes the movement of water through a plant from roots to leaves?
- A. Translocation
- B. Transpiration
- C. Photosynthesis
- D. Respiration
Which molecule is a product of the light-dependent reactions of photosynthesis?
- A. Glucose
- B. Oxygen
- C. NADPH
- D. ATP
Which plant hormone is known for its role in delaying leaf senescence?
- A. Ethylene
- B. Auxin
- C. Cytokinin
- D. Abscisic acid
What is the main purpose of root hairs in plants?
- A. Photosynthesis
- B. Gas exchange
- C. Increase surface area for water and nutrient absorption
- D. Protection from pathogens
Which process is responsible for the generation of ATP in plant cells?
- A. Photosynthesis
- B. Respiration
- C. Transpiration
- D. Translocation
Which pigment gives plants their green color?
- A. Carotenoids
- B. Chlorophyll
- C. Anthocyanins
- D. Flavonoids
Which hormone is involved in the regulation of stomatal closure during drought stress?
- A. Auxin
- B. Cytokinin
- C. Gibberellin
- D. Abscisic acid
Which organization classified India into 15 agro-climatic zones?
- A) Indian Space Research Organisation (ISRO)
- B) Indian Council of Agricultural Research (ICAR)
- C) Ministry of Environment, Forest and Climate Change
- D) National Aeronautics and Space Administration (NASA)
Which agro-climatic zone is known for the highest rainfall in India?
- A) Western Himalayas
- B) Eastern Himalayas
- C) Western Ghats and Coastal Plains
- D) North Eastern Hill Region
The Western Himalayan region falls under which agro-climatic zone?
- A) Zone I
- B) Zone II
- C) Zone III
- D) Zone IV
Which crop is predominantly grown in the Eastern Plateau and Hills region?
- A) Wheat
- B) Rice
- C) Cotton
- D) Sugarcane
The Deccan Plateau falls under which agro-climatic zone?
- A) Zone V
- B) Zone VI
- C) Zone VII
- D) Zone VIII
Which agro-climatic zone is characterized by black soil?
- A) Northern Plain and Central Highlands
- B) Central Plateau and Hills
- C) Southern Plateau and Hills
- D) Western Plain, Kachchh, and part of Kathiawar Peninsula
The major crops grown in the Coastal Plains and Ghats zone include:
- A) Tea and Coffee
- B) Wheat and Barley
- C) Cotton and Jute
- D) Rice and Coconut
The Lower Gangetic Plain Region is suitable for growing which major crop?
- A) Wheat
- B) Rice
- C) Maize
- D) Sugarcane
The Upper Gangetic Plains are predominantly characterized by which type of climate?
- A) Arid
- B) Semi-arid
- C) Sub-humid
- D) Humid
Which agro-climatic zone is the most suitable for the cultivation of horticultural crops like apples and cherries?
- A) Western Himalayas
- B) Eastern Plateau and Hills
- C) Lower Gangetic Plain Region
- D) Southern Plateau and Hills
The Central Plateau and Hills region primarily grows which of the following crops?
- A) Rice and Wheat
- B) Cotton and Sugarcane
- C) Sorghum and Millet
- D) Tea and Coffee
Which zone is the North Eastern Hills Region classified under?
- A) Zone I
- B) Zone II
- C) Zone III
- D) Zone IV
The climate of the Western Ghats is best described as:
- A) Arid
- B) Semi-arid
- C) Tropical Wet
- D) Temperate
Which of the following agro-climatic zones is known for its dry and arid conditions?
- A) Eastern Plateau and Hills
- B) Western Plain, Kachchh, and part of Kathiawar Peninsula
- C) Upper Gangetic Plains
- D) Eastern Himalayas
The major soil type found in the Northern Plain and Central Highlands is:
- A) Alluvial Soil
- B) Black Soil
- C) Red Soil
- D) Laterite Soil
Which agro-climatic zone includes the states of Kerala and Tamil Nadu?
- A) Western Himalayas
- B) Eastern Plateau and Hills
- C) Coastal Plains and Ghats
- D) Deccan Plateau
The Andaman and Nicobar Islands fall under which agro-climatic zone?
- A) Islands Region
- B) Coastal Plains and Ghats
- C) Southern Plateau and Hills
- D) Western Himalayas
In which agro-climatic zone is the Thar Desert located?
- A) Western Himalayan Region
- B) Western Plain, Kachchh, and part of Kathiawar Peninsula
- C) Deccan Plateau
- D) Southern Plateau and Hills
The agro-climatic zone of Lower Gangetic Plains is mainly characterized by:
- A) Dry and arid conditions
- B) High rainfall and fertile soils
- C) Moderate rainfall and hilly terrain
- D) Low rainfall and sandy soils
The major cash crop of the Deccan Plateau is:
- A) Cotton
- B) Wheat
- C) Rice
- D) Jute
Which zone is well-known for tea cultivation in India?
- A) Western Himalayas
- B) Eastern Plateau and Hills
- C) North Eastern Hills Region
- D) Southern Plateau and Hills
The primary source of irrigation in the Eastern Plateau and Hills region is:
- A) Rain-fed
- B) Canal Irrigation
- C) Well and Tube-well Irrigation
- D) Drip Irrigation
Which zone includes parts of Maharashtra, Madhya Pradesh, and Chhattisgarh?
- A) Deccan Plateau
- B) Western Plain, Kachchh, and part of Kathiawar Peninsula
- C) Central Plateau and Hills
- D) Northern Plain and Central Highlands
The climate in the Eastern Himalayan region is best described as:
- A) Tropical Wet and Dry
- B) Temperate
- C) Sub-Tropical Humid
- D) Arid
The major agricultural practice in the Islands Region involves:
- A) Plantation agriculture
- B) Shifting cultivation
- C) Subsistence farming
- D) Mixed farming
The major irrigation method in the Western Plain, Kachchh, and part of Kathiawar Peninsula is:
- A) Canal Irrigation
- B) Drip Irrigation
- C) Flood Irrigation
- D) Sprinkler Irrigation
Which agro-climatic zone is referred to as the 'Rice Bowl of India'?
- A) Lower Gangetic Plain Region
- B) Eastern Plateau and Hills
- C) Coastal Plains and Ghats
- D) Deccan Plateau
The primary season for crop cultivation in the Western Himalayan Region is:
- A) Kharif
- B) Rabi
- C) Zaid
- D) None of the above
The predominant soil type in the Southern Plateau and Hills region is:
- A) Alluvial Soil
- B) Black Soil
- C) Red Soil
- D) Laterite Soil
Which agro-climatic zone is characterized by mixed red and black soils?
- A) Northern Plain and Central Highlands
- B) Central Plateau and Hills
- C) Southern Plateau and Hills
- D) Western Plain, Kachchh, and part of Kathiawar Peninsula