ICAR JRF Agronomy Previous Year Paper 2017 — Agri Master Mind
The process which converts solar energy, water, and carbon dioxide into carbohydrates and oxygen is? (JRF AGRO-2017)
- photosynthesis
- ecology
- water cycle
- biomes
Which of the following is abiotic? (JRF AGRO-2017)
- grass
- birds
- water
- apples
Richmond Lang effect is associated with? (JRF AGRO-2017)
- Auxin
- GA
- Cytokinin
- Ethylene
NARP was launched by? (JRF AGRO-2017)
- ICAR in 1976
- Govt. of India in 1976
- ICAR in 1979
- Govt. of India in 1979
Carbohydrate factory of cell is? (JRF AGRO-2017)
- Golgi body
- Chloroplast
- Cytosol
- Peroxisome
Which is not an aim of transformation of data? (JRF AGRO-2017)
- Reduce skewness and kurtosis
- Improve linearity in regression
- Increase interaction effect
- Reduce relationship between mean and variance
Sugar in sugarcane stalk is stored in? (JRF AGRO-2017)
- Parenchyma cells
- Collenchyma cells
- Non chlorophyllous cells
- Sclerenchyma cells
Under utera system, seeds of linseed are broadcasted in standing paddy crop at? (JRF AGRO-2017)
- Early flowering stage
- Late flowering stage
- Dough stage
- Physiological maturity stage
Which pulse crop is not of Indian origin? (JRF AGRO-2017)
- Pigeon pea
- Green gram
- Black gram
- Lentil
Pre-emergence herbicide is? (JRF AGRO-2017)
- Halosulfuron
- Tembotrione
- Atrazine
- 2,4-D
The average irrigation efficiency of the major and medium irrigation project in the country is? (JRF AGRO-2017)
- <30%
- 35-40%
- 40-55%
- 60-65%
In aluminium octahedral, one Al³⁺ ion is bonded to how many OH⁻ ions? (JRF AGRO-2017)
- 2
- 4
- 6
- 8
Nitrification is a? (JRF AGRO-2017)
- Chemical reduction
- Chemical oxidation
- Biological reduction
- Biological Oxidation
Which of the following is not a removal way of N from soil? (JRF AGRO-2017)
- Denitrification
- Mineralization
- Volatilization
- Soil erosion
In arid regions, which process predominates in soil formation? (JRF AGRO-2017)
- Physical weathering
- Chemical weathering
- Biological weathering
- Biogeochemical weathering
Who is regarded as the 'Father of Conservation Tillage'? (JRF AGRO-2017)
- Jethro Tull
- Edward H. Faulkner
- M.S. Swaminathan
- C. Subramaniam
Optimum brix reading for harvesting sugarcane is? (JRF AGRO-2017)
- 14-16
- 18-21
- 23-25
- 12/1/2022
The ratio between the quantity of water stored in the root zone depth and water delivered to the field is? (JRF AGRO-2017)
- Water distribution efficiency
- Water requirement efficiency
- Water conveyance efficiency
- Water application efficiency
Removal of soluble salts from the soil profile by passage of water through it is? (JRF AGRO-2017)
- Percolation
- Leaching
- Infiltration
- Seepage
Area irrigated by one cumec of water flowing for the entire base period is? (JRF AGRO-2017)
- Delta
- Duty of water
- Dual crop coefficient
- Crop coefficient
Water requirement of CAM:C4:C3 plants for each unit of CO₂ fixation is almost in the ratio of? (JRF AGRO-2017)
- 0.252789351851852
- 4.58796296296296E-02
- 4.45138888888889E-02
- 0.170844907407407
Irrigation frequency depends on? (JRF AGRO-2017)
- Crop
- Crop and soil
- Crop, soil, and climate
- Crop and climate
The dormancy related to physical properties of the seed coat is? (JRF AGRO-2017)
- Innate
- Enforced
- Induced
- Fidelity
The common name of Topik herbicide is? (JRF AGRO-2017)
- Fenoxaprop-p-ethyl
- Clodinofop-propagyl
- Carfentrazone-ethyl
- Clodinofop-p-ethyl
Almix is used to control weeds in? (JRF AGRO-2017)
- Rice
- Soybean
- Cotton
- Sugarcane
Scientist regarded as the father of "safeners" is? (JRF AGRO-2017)
- Hilton
- Hoffman
- Harper
- Harrington
Poisonous substance present in congress grass that creates dermatitis in human beings is? (JRF AGRO-2017)
- Lactones
- Phenolic acid
- Parthenin
- Saponins
Pendimethalin belongs to? (JRF AGRO-2017)
- 2,4-Dinitrophenols
- 2,6-Dinitroanilines
- Acetamides
- Triazines
The movement of herbicide absorbed by roots and movement through xylem in plants is? (JRF AGRO-2017)
- Apoplast
- Symplast
- Polar
- Basipetal
The natural source of Fe (Iron) is? (JRF AGRO-2017)
- Apatite
- Pyrites
- Biotite
- Augite
According to Thornthwaite, precipitation effectiveness index value <16 indicates? (JRF AGRO-2017)
- Rain forest
- Desert
- Grassland
- Steppe
In India, Agro-climatic Zones as per planning commission are? (JRF AGRO-2017)
- 15
- 8
- 60
- 21
Nitrogen is taken by plants as? (JRF AGRO-2017)
- Nitrate
- Nitrous acid
- Nitrite
- Nitric acid
Deficiency symptoms of nitrogen appear first on? (JRF AGRO-2017)
- Upper leaves
- Lower leaves
- Middle leaves
- Young leaves
The ratio of the amount of radiation reflected to the amount received on a surface is termed as? (JRF AGRO-2017)
- Albedo
- Radiation
- Reflection
- Refraction
Capillarity in soil pores is due to? (JRF AGRO-2017)
- Adhesion
- Surface tension
- Cohesion
- Adhesion and cohesion
‘Contingent crop planning’ ensures? (JRF AGRO-2017)
- Soil fertility enhancement
- Crop production under aberrant weather conditions
- Maintenance of soil fertility
- Crop production under normal weather conditions
One kilogram of nitrogen is equivalent to? (JRF AGRO-2017)
- 2.17Kg urea
- 3.22Kg urea
- 4.22Kg urea
- 1.76Kg urea
Sunflower crop is grown in all seasons because of? (JRF AGRO-2017)
- Determinate growth habit
- Photosensitivity
- Photoinsensitivity
- Thermosensitivity
A chemical such as CCC is a? (JRF AGRO-2017)
- Growth regulator
- Growth retardant
- Growth substance
- Growth promoter
Planting of succeeding crop being harvested of standing crop is known as? (JRF AGRO-2017)
- Mixed cropping
- Relay cropping
- Intercropping
- Multiple cropping
Yearly sequence and spatial arrangement of crops and fallow on a given area is called? (JRF AGRO-2017)
- Crop intensification
- Crop modelling
- Cropping pattern
- Cropping scheme
Regression coefficient ranges between? (JRF AGRO-2017)
- 0 to 1
- 0 to 5
- -1 to +1
- VC
Organic matter can be calculated by multiplying organic carbon with? (JRF AGRO-2017)
- 1.72
- 1.82
- 1.92
- 2
Dodder is a serious weed of? (JRF AGRO-2017)
- Sesamum
- Lucerne
- Oat
- Maize
Water use efficiency is maximum with? (JRF AGRO-2017)
- Sprinkler irrigation
- Drip irrigation
- Surface method
- Sub-surface
Rajasthan ranks first in production of? (JRF AGRO-2017)
- Castor
- Groundnut
- Gram
- Mustard
The pink colour of legume nodules is due to? (JRF AGRO-2017)
- Hemoglobin
- Leghaemoglobin
- RBC
- WBC
Cyperus rotundus is classified as? (JRF AGRO-2017)
- Perennial Weed
- Biennial Weed
- parasitic Weed
- Annual Weed
Which of the following is a non-edible cake? (JRF AGRO-2017)
- Castor Cake
- Mustard cake
- Til cake
- Groundnut cake
The weed having phenotypic mimicry to wheat crop is? (JRF AGRO-2017)
- Cichorium intybus
- Chenopodium album
- Phalaris minor
- Melilotus albus
A farmer wants to apply Atrazine 80% WP @ 0.5 kg/ha, the required quantity of marketable produce would be: (JRF AGRO-2017)
- 0.400kg
- 0.480kg
- 0.520kg
- 0.625kg
Arrowing is known as: (JRF AGRO-2017)
- Emergence of inflorescence in sugarcane
- Tillering in sugarcane
- Arrow-like shape of sugarcane leaf
- Regrowth in sugarcane
Agronomic efficiency is expressed as: (JRF AGRO-2017)
- g/m²/day
- kg grains/kg nutrient applied
- Day or week
- cm²/g
Harmful substance present in urea is: (JRF AGRO-2017)
- Uric Acid
- Biuret
- Amide
- Cyanide
In India, the first separate Department of Agriculture was established in: (JRF AGRO-2017)
- 1881
- 1900
- 1801
- 1985
The net assimilation rate is expressed as: (JRF AGRO-2017)
- g cm⁻² day⁻¹
- g g⁻¹ ha⁻¹
- g g⁻¹ day⁻¹
- g cm⁻² ha⁻¹
Photosynthesis inhibitors are: (JRF AGRO-2017)
- Triazines
- Dinitroanilines
- Amides
- Sulfonylureas
Mustard crop sown at a spacing of 50*20 cm will have: (JRF AGRO-2017)
- 75,000 plants/ha
- 1,00,000 plants/ha
- 1,25,000 plants/ha
- 1,50,000 plants/ha
Which instrument is used to determine wind direction? (JRF AGRO-2017)
- Anemometer
- Anemograph
- Aerometer
- Aeroscope slide
Which of the following pairs of weeds and crops is not correctly matched? (JRF AGRO-2017)
- Striga - Sorghum
- Cuscuta - Lucerne
- Typha - Sugarcane
- Orobanche - Tobacco
Which is an indirect method of soil moisture measurement? (JRF AGRO-2017)
- Neutron moisture meter
- Electron moisture meter
- Positron moisture meter
- Preten moisture meter
The CPE value, when irrigation is scheduled at 0.8 IW/CPE with 6.0 cm depth of irrigation water, is: (JRF AGRO-2017)
- 7.5 cm
- 75 mm
- 750 mm
- both a and b
Which plant species produce nodules on its stem? (JRF AGRO-2017)
- Sesbania aculeata
- Sesbania rostrata
- Crotolaria juncea
- Sesbania acuminata
The quantity of DAP and urea required to fertilize 1 ha wheat crop @ 120 kg N - 60 kg P₂O₅ - 0 kg K₂O will be: (JRF AGRO-2017)
- 130 kg DAP and 210 kg Urea
- 160 kg DAP and 260 kg Urea
- 210 kg DAP and 130 kg Urea
- 260 kg DAP and 130 kg Urea
Poor physical condition of sodic soil is due to: (JRF AGRO-2017)
- High conc of Exchangeable K⁺
- High conc of Exchangeable Na⁺
- High conc of Exchangeable Ca²⁺
- High pH
Which of the following is an incorrect pair? (JRF AGRO-2017)
- Wheat: Nipping
- Jute: Retting
- Groundnut: Pegging
- Maize: Tasseling
Castor belongs to the family: (JRF AGRO-2017)
- Euphorbiaceae
- Leguminosae
- Cruciferae
- Compositae
Adsali sugarcane is planted in: (JRF AGRO-2017)
- February-March
- December-January
- January-April
- July-August
The design used to study two factors with different levels of precision is: (JRF AGRO-2017)
- Completely randomized design
- Latin square design
- Split plot design
- Factorial RBD
Which is not a basic principle of field experimental design? (JRF AGRO-2017)
- Treatment
- Replication
- Randomization
- Local control
Which of the following nutrients is required for pollen germination? (JRF AGRO-2017)
- Calcium
- Zinc
- Copper
- Boron
The decrease in total available energy at each higher trophic level is called: (JRF AGRO-2017)
- The pyramid of biomass
- The pyramid of numbers
- The pyramid of energy
- Conversion efficiency
Solar radiation in the wave-length of 400-700 nm is: (JRF AGRO-2017)
- LUE
- PAR
- RUE
- IPAR
Ratio of the area needed under sole cropping to one of intercropping to give an equal amount of yield is called: (JRF AGRO-2017)
- Land equivalent ratio
- Income equivalent ratio
- Area time equivalent ratio
- Harvest index
What is used to increase reflection of solar radiation from crop canopy? (JRF AGRO-2017)
- Kaolin
- Mobileaf
- Hexadecanol
- CCC
Which is a C₃ Plant? (JRF AGRO-2017)
- Soybean
- Sorghum
- Maize
- Amaranthus
The dent corn is known as: (JRF AGRO-2017)
- Zea mays indentata
- Zea mays indurata
- Zea mays tunicate
- Zea mays everta
Sesamum belongs to the family: (JRF AGRO-2017)
- Leguminosae
- Papilionaceae
- Pedaliaceae
- Chenopodiaceae
The gynophores of groundnut are commonly referred to as the: (JRF AGRO-2017)
- Perianth
- Peg
- Ovate
- Monadelph
Arhar (pigeon pea) commonly grows well in: (JRF AGRO-2017)
- Tropical and subtropical climate
- Temperate climate
- Humid and temperate climate
- Sub-humid and temperate climate
Core metal of chlorophyll is: (JRF AGRO-2017)
- Cu
- Mg
- Fe
- Ni
The genetically purest seed is: (JRF AGRO-2017)
- Breeder seed
- Nucleus seed
- Foundation seed
- Certified seed
The seed dormancy can be broken by red light in: (JRF AGRO-2017)
- Pea
- Gram
- Lettuce
- Castor
Triticum aestivum is: (JRF AGRO-2017)
- Bread wheat
- Hard wheat
- Emmer wheat
- Einkorn wheat
Hay is prepared from crops rich in: (JRF AGRO-2017)
- Sugar
- Protein
- Fat
- Crude fibre
Growing trees along with agricultural crops is known as: (JRF AGRO-2017)
- Silviculture
- Horticulture
- Social forestry
- Agroforestry
Soil sickness is caused due to: (JRF AGRO-2017)
- Accumulation of autotoxins
- N-deficiency
- Accumulation of phosphates
- Zinc deficiency
The cheapest source of sulphur is: (JRF AGRO-2017)
- Single super phosphate
- Ammonium sulphate
- Elemental sulphur
- Gypsum
Brown heart disease is due to deficiency of: (JRF AGRO-2017)
- Iron
- Boron
- Potassium
- Molybdenum
The kind of soil water most useful to plant is: (JRF AGRO-2017)
- Hygroscopic water
- Gravitational water
- Capillary water
- Both (A) & (C)
The colours of soil are generally due to: (JRF AGRO-2017)
- Iron oxides
- Humus
- Clays
- Iron oxides and humus
When the fertility gradient of the field goes in two directions, which design is most appropriate? (JRF AGRO-2017)
- Augmented design
- Completely randomized design
- Latin square design
- Split plot design
Swing basket (Dhenkuli) is used for: (JRF AGRO-2017)
- Making furrow
- Lifting water from wells
- Destroying weeds
- Levelling of land
The plough used to break the hard pan of subsoil is: (JRF AGRO-2017)
- Desi plough
- Chisel plough
- Rotavator
- Victory plough
The nitrogen content by weight in plants is: (JRF AGRO-2017)
- 1-5% N
- 5-10% N
- 15-20% N
- 20-25% N
Transportation of photosynthates is mediated by: (JRF AGRO-2017)
- Mg
- P
- K
- Cu
Willow shoot experiment was conducted by: (JRF AGRO-2017)
- Jan Baptist Van Helmont
- J V Liebig
- John Mayor
- Debarry
Which of the following is a non-selective herbicide? (JRF AGRO-2017)
- Alachlor
- Butachlor
- Paraquat
- Atrazine
An ingredient, which when added to a formulation enhances the action of toxicant, is: (JRF AGRO-2017)
- Adjuvant
- Surfactant
- Antidote
- Emulsion
The amount of active ingredient expressed in terms of parent acid is: (JRF AGRO-2017)
- Active ingredient
- Acid equivalent
- Phytochemical
- Base equivalent
Colza' is related to: (JRF AGRO-2017)
- Sunflower
- Jute
- Castor
- Mustard
The agronomic measure suggested for the prevention of sedimentation of reservoirs is: (JRF AGRO-2017)
- Vertical mulching
- Conservation tillage
- Stubble mulching
- Afforestation in the catchment area
The bioagent considered effective for the control of Parthenium hysterophorus is: (JRF AGRO-2017)
- Neochetina bruchi
- Bactra verutana
- Zygogramma bicolorata
- Cyrtobagous salviniae
Heating the soil using plastic mulches is termed as: (JRF AGRO-2017)
- Desiccation
- Solarization
- Thermal Radiation
- Vaporization
If the net sown area is 141 m ha and the double-cropped area is 47 m ha then cropping intensity will be: (JRF AGRO-2017)
- 1.33
- 1.63
- 1.03
- 1.53
Water held tightly as a thin film around soil particles that moves only in the vapor phase (JRF AGRO-2017)
- Ultimate wilting point
- Field capacity
- Hygroscopic water
- PWP (Permanent Wilting Point)
A soil has 225 grams wet weight and 200 grams dry weight, the moisture % by weight is: (JRF AGRO-2017)
- 10
- 25
- 12.5
- 15
In the universal soil loss equation, the factor denoted by 'K' is (JRF AGRO-2017)
- Soil erodability
- Soil erosivity
- Crop management
- Conservation practices
Soil crust mainly affects (JRF AGRO-2017)
- Seepage
- Seedling emergence
- Permeability
- Root penetration
The mechanism adopted by ephemeral plants to overcome soil moisture stress is (JRF AGRO-2017)
- Drought escaping
- Drought tolerance
- Drought resistance
- Drought avoiders
Nutrient lost from soil in gaseous form is: (JRF AGRO-2017)
- Nitrogen
- Phosphorous
- Potassium
- Calcium
HD 2967 is a variety of: (JRF AGRO-2017)
- Rice
- Maize
- Wheat
- Bajra
The green leaves and pods of Bengal gram are rich in: (JRF AGRO-2017)
- Malic acid
- Acetic acid
- Butyric acid
- Formic acid
Transportation of photosynthates is mediated by (JRF AGRO-2017)
- Mg
- P
- K
- Cu
Willow shoot experiment was conducted by (JRF AGRO-2017)
- Jan Baptist Van Helmont
- J V Liebig
- John Mayor
- Debarry
Which of the following is a non-selective herbicide? (JRF AGRO-2017)
- Alachlor
- Butachlor
- Paraquat
- Atrazine
An ingredient, which when added to a formulation enhances the action of toxicant, is: (JRF AGRO-2017)
- Adjuvant
- Surfactant
- Antidote
- Emulsion
The amount of active ingredient expressed in terms of parent acid is (JRF AGRO-2017)
- Active ingredient
- Acid equivalent
- Phytochemical
- Base equivalent
Colza' is related to: (JRF AGRO-2017)
- Sunflower
- Jute
- Castor
- Mustard
The agronomic measure suggested for the prevention of sedimentation of reservoirs is (JRF AGRO-2017)
- Vertical mulching
- Conservation tillage
- Stubble mulching
- Afforestation in the catchment area
The bioagent considered effective for the control of Parthenium hysterophorus is: (JRF AGRO-2017)
- Neochetina bruchi
- Bactra verutana
- Zygogramma bicolorata
- Cyrtobagous salviniae
Heating the soil using plastic mulches is termed as: (JRF AGRO-2017)
- Desiccation
- Solarization
- Thermal Radiation
- Vaporization
If the net sown area is 141 m ha and the double-cropped area is 47 m ha then cropping intensity will be: (JRF AGRO-2017)
- 1.33
- 1.63
- 1.03
- 1.53
Water held tightly as a thin film around soil particles that moves only in the vapor phase (JRF AGRO-2017)
- Ultimate wilting point
- Field capacity
- Hygroscopic water
- PWP (Permanent Wilting Point)