Agronomy ICAR JRF Test - 10 — Agri Master Mind
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Konkan Bahadoli is the cultivar of
- Jamun
- Mango
- Jackfruit
- Sapota
A line on weather map joining the places of equal temperature is known as
- Isotherm
- Isobar
- Isohytes
- Isoline
The isolation distance for hybrid jowar certified seed production is --- m
- 400
- 200
- 100
- 600
Yellow rust of wheat is caused by
- Puccinia striiformis
- P. graminis tritici
- P. hordei
- P. Recondita
Mallika, a variety of mango is cross between ---
- Neelam x Dashehari
- Alphanso x Neelam
- Dashehari x Neelam
- None of these
Phule Green Gold is variety of --- vegetable crop
- Bitter gourd
- Brinjal
- Okra
- Cabbage
Papaya is commercially propagated by ---
- Cutting
- Layering
- Grafting
- Seed
Cultivation of crops in regions where annual rainfall is more than 1150 mm is called as
- Dry farming
- Dry land farming
- Rainfed farming
- None of these
Charcoal like powder having fungus spores particularly in floral organs and plant shows black dusty mass are symptoms of --- disease.
- Smut
- Powdery mildew
- Canker
- Blight
Bavistin is trade name of ---
- Carbendazim
- Thiram
- Carboxin
- None of these
The tuber development in potato is influenced by :
- Thermoperiodism
- Photoperiodism
- Both a and b
- None of these
In sequential cropping, crop intensification is in :
- Only time dimension
- Only space dimension
- Both a and b
- None of the above
The optimum time of sowing is an example of :
- Low-cash input
- Non-cash input
- Cash input
- All of the above
Aus rice is sown in :
- May-June
- June-July
- November-December
- February-March
A farmer sown 10 acre, under irrigated 4 crops/acre/year in 5 acre and 5 crops/acre/year sown in remaining 5 acre. Find out the cropping intensity :
- 200
- 300
- 350
- 450
In maize/soybean intercropping, if normal population of maize is maintained, the cropping index will be :
- 100
- 150
- 200
- 250
Crop cutting survey method of crop judging is :
- More reliable and accurate than annewory system
- Less reliable and accurate than annewory system
- Same as annewory system
- None of the above
Post emergence herbicide is :
- Atrazine
- Propanil
- Alachlor
- Fluchloralin
The country having highest irrigated area is :
- Israel
- India
- Pakistan
- Nepal
Glyphosate is an example of :
- Selectivity
- Metabolic disturbance
- Both a and b
- None of these
Which device is commonly used to measure discharge from small and medium sized streams :
- Parshall Flume
- V-notch weir
- Orifices
- All of the above
After how many days will you apply water to soil if FC of the soil = 28%; PWP = 13%; Db= 1.3 Mg/m3, effective root zone depth = 70 cm and daily Cu of water for the crop is 12 mm, Assume additional data if necessary :
- 11 days
- 13 days
- 15 days
- 17 days
Suppose the grain yield of wheat is 45 qha-1 and ET = 40 cm; crop water use efficiency will be :
- 112.5 kg/ha-cm
- 112.5 q/ha-cm
- 11.25 kg/ha-cm
- None of these
Which one of the following is a water conveyance structure :
- Flumes
- Culverts
- Inverted siphon
- All of these
If the amount of water required to refill the soil profile is 5cm and the irrigation efficiency is 60 percent, the total depth of water to be applied would be :
- 8.33 cm
- 1.20 cm
- 6.33 cm
- 3.20 cm
The perforated pipe sprinkler system operates at a pressure of :
- 1.4 kg cm-2 and less
- 2.0 kg cm-2 and more
- Both a and b
- At ant pressure
The vertical distance above a water table along which moisture content varies from saturation to field capacity is called :
- Capillary fringe
- Aquifer
- Perched water table
- None of these
The sunken screen evaporimeter was developed at IARI in 1968 by :
- Dastane and Sharma
- RBL Bhardwaj
- Krishnan and Singh
- Parihar et al
The portion of precipitation which is lost through surface flow from an area with entering the soil is termed as :
- Runoff
- Leaching
- Percolation
- All of the above
The concept of minimum tillage was started in :
- India
- USA
- UK
- Australia
The matric potential if a saturated soil is :
- Zero
- -1
- +1
- None of these
The water requirement of maize ranges in between :
- 20-40 cm
- 40-60 cm
- 60-80 cm
- 80-100 cm
The lack of resistance of a soil erosion is referred to as :
- Erosivity
- Erodibility
- Erosion accelerated
- Erosion
According to NARP, the country has been divided into----agro-climatic zones :
- 20
- 15
- 10
- 131
Which crop can be successfully grown in heavy black dry lands during rabi season :
- Sunflower
- Castor
- Safflower
- Rapeseed-mustard
The dryland agriculture which covers about 63% of the net sown area contributes to foodgrain production in the country to the tune of :
- 39%
- 41%
- 43%
- 45%
The water harvesting methed in which the harvested water is stored in the soil pro itself is called as :
- Runoff concentration
- Runoff farming
- In situ water harvesting
- All of these
The pit and trench method of water harvesting for vegetables and fruit crops was deoped by :
- CAZRI, Jodupur
- ICRISAT, Hyderabad
- IARI, New Delhi
- ICARDA, Syria
The water harvesting technique in which runoff is stored in a reservoir for :
- Runoff recycling
- Runoff collection
- Catchment water harvesting
- All of the above
Which of the following is used to retard water loss from the ponds :
- Cetyl alcohol
- Ethyl alcohol
- Methyl alcohol
- All of the above
A high yielding semi-dwarf variety of rice was first developed at :
- CRRI, Cuttack
- IARI, New Delhi
- ICRISAT, Hyderabad
- IRRI, Manila
Seed potato from the hilly regions of India is preferred because :
- It is cheaper
- Good varieties are grown in these regions
- It is disease free
- All of the above
Which one of the following is a pre-emergence herbicides :
- Paraquat and Butachlor
- 2, 4-D and Thiobencarb
- Dalapon and Triazine
- Fluchloralin and Pendimethalin
Dehaulming in potato is dojne to obtain :
- Higher yield
- Quality seed tuber
- Higher starch content
- Hingher protein content
Which one of the following systems need irrigation through out the year :
- Diara land cropping system
- Intercropping system
- Mixed cropping system
- Multiple cropping system
Which one of the following herbicide kills both Phalaris minor and wild oats in wheat :
- TOK E 25
- 2, 4-D
- Tribunil
- Avadex
Herbicide used for weed control in sorghum is --- kg a.i. ha-1:
- Atrazine @ 0.50-1.00
- Atrazine @ 1.25-1.50
- Fluchloralin @ 0.50-1.00
- Fluchloralin @ 1.25-1.50
For urdbean, the suitable climate is :
- Hot and humid
- Cool and humid
- Cool and dry
- Hot and dry
Lentil under late sowing situations should be seeded with :
- Enhanced seed rate
- Reduced seed rate
- Widened row space
- Widened plant space
Zinc deficiency in pigeonpea can be rectified by spraying of :
- 5 kg ZnSO4+2.5 kg lime ha-1
- 20 kg ZnSO4+2.5 kg lime ha-1
- 5 kg ZnSO4+5 kg lime ha-1
- 10 kg ZnSO4+2.5 kg lime ha-1
Use of ---- provides effective control of weeds in groundnut :
- 2, 4-D
- Simazine
- Isoproturon
- Tok E-25
Heavy shedding of buds and bolls occurs in cotton due to :
- Deficiency of N2 in the soil
- Deficiency of P2O5 in the soil
- Deficiency of Mg in the soil
- Water stress at bud formation stage
Germination of sugarcane buds is positively correlated with :
- Glucose content of the bud tissue
- Sucrose content of the bud tissue
- Starch content of the tissue
- Amylose content of the bud tissue
In furrow method of irrigartion :
- Only ¼ of the furrow is wetted
- Only 1/5 of the furrow is wetted
- Only ½ of the furrow is wetted
- Only ¾ of the furrow is wetted
Consider the following crops 1. Wheat 2. Groundnut 3. Rice 4. Soybean. The correct sequence of these crops in terms of increasing order of their protein content is :
- 1,3,2,4
- 3,1,4,2
- 3,1,2,4
- 1,3,4,2
The plant breeder associated with the development of varalaxmi hybrid variety of cotton is :
- Labh Singh
- V Santhanam
- R S Sandhu
- Satvirjaswal
The earth during the last one century has warmed up by ---- as estimated :
- 0.3-0.7
- 0.8-1.0
- 1.2-1.3
- 1.4-1.5
In general, herbicides are ---- than either fungikcides or insecticides :
- More mobile
- Less mobile
- Equally mobile
- More immobile
To which family does the newly developed plant variety Canola belong :
- Papilionaceae
- Caesalpinaceae
- Compositae
- Cruciferae
In no-tillage systems, the surface soil layers have :
- Higher bulk density
- Lower bulk density
- Higher total pore space
- Lower water infiltration
According to NARP, Rajasthan has been divided into certain agro-climatic zones. The number of these zones at the present are :
- 5
- 10
- 7
- 9
The largest agro-climatic zone of Rajasthan is :
- Arid-Western Plain Zone
- Semi-Arid Eastern Plain Zone
- Humid Southern plain Zone
- Irrigated North-Western Plain Zone
Of the several agro-climatic elements, the broad distribution of crops in India is governed by :
- Rainfall pattern
- Mean daily temperature
- Solar energy received
- Relative humidity
The major role of intercultivation tillage is :
- Improvement of soil texture
- Enhancement of soil aeration
- Weed control
- Improvement in soil structure
Dryland agriculture is defined as :
- Agriculture conducted under rainfed condition, without irrigation
- Agriculture conducted under conditions where potential evaportranspiration is more than precipitation, without irrigation
- Agriculture conducted on drought affected lands
- Agriculture conducted under conditions of precipitation begin more than potential evapotranspiration, without irrigation
In certain ststes in India, Farmers grow three crops a year on the same filed. One such state is :
- Punjab
- Maharashtra
- Assam
- Kerala
Rabi season maize is grown in Rajasthan in the district of :
- Sriganganagar
- Ajmer
- Banswara
- Bharatpur
The most common herbicide used for the control of Phalaris minor (Cannry grass) in wheat in India is :
- 2, 4-D
- Dalapon
- Isoproturon
- Simazine
The recommended row spacing for oilseeds and pulses in Rajasthan, in general, (except for arhar) is :
- 45 cm
- 30 cm
- 55 cm
- 75 cm
The maximum contribution of pulses in Rajasthan is from :
- Pigeonpea
- Chickpea
- Cowpea
- Moongbean
The recommended row to row spacing in potato in Rqajasthan is :
- 30-35 cm
- 35-40 cm
- 45-50 cm
- 55-60 cm
The PAR in diffiused radiation is about :
- 65%
- 45%
- 25%
- 85%
The artificial application of water to soil for the purpose of supplying the moisture essen-tial for plant growth is termed as :
- Irrigation
- Drainage
- Irrigation requirement
- Water requirement
The average annual precipitation for the country as a whole is :
- 575 mm
- 1200 mm
- 1000 mm
- 1100 mm
In the Negeb desert, southwest of the dead sea, which from of precipitation is largely responsible for summer growth of grapes :
- Rainfall
- Fog
- Dew
- Hailstorms
The water beneath the soil surface where voids in the soil are substantially filled with water is called :
- Pheratic water
- Surface water
- Aquifer
- Ground water
Which one of the following countries has 100% cultivated area under irrigation :
- Egypt
- India
- USA
- China
The devices and methods used to control silting of reservoirs include :
- Settling basins and by pass channels
- Vegetated streams and venting density currents
- Flood sluicing, dredging, draining amd flushing
- All of the above
--- are water-loving plants growing along stream courses and on wet soils having high water tables where an abundant supply of water is available :
- Phreatophytes
- Hydrophytes
- Aquatic plants
- None of these
The science of artificial rain-making is known as :
- Forced raining
- Cloud seeding
- Cloud bursting
- None of these
The chemical used for seeding of cold clouds is :
- NaCI
- Agl
- Both a & b
- None of these
The chemical used for seeding of warm clouds is :
- NaCI
- urea+concentrated NH4NO3
- Both a and b
- None of these
The amount of electrical energy required to remove the salt from 1m3 of sea water is :
- 0.5 Kilowatt hours
- 0.6 Kilowatt hours
- 0.7 Kilowatts hours
- 0.8 Kilowatts hours
Tensiometers are most useful in --- soils :
- Sandy
- Clay
- Vertisols
- All of the above
The leaching requirement increases at least 10 percent for each 1000 ppm of --- solved solids in the irrigation water :
- 1
- 10
- 100
- 1000
The major source of heat used for transpiration is :
- Terrestrial energy
- Radiant energy
- Both a and b
- None of these
The total pore space of the soil less the moisture content at field capacity, both express as volume percentanges of the total soil volume is defined as :
- Specific yield
- Moisture equivalent
- Water yield
- Total yield
Blaney and Criddle developed a simplified formula for measurement of consumptive based on :
- Temperature and day-time hours
- RH, wind velocity, sunshine hours and temperature
- Temperature and latitude
- All of the above
The portion of water potential that results form the solutes present in the soil referred to as ----- potential :
- Matric
- Osmotic
- Gravitional
- All of the above
The drip irrigation system was introduced in India during early :
- 1950's
- 1960's
- 1970's
- 1980's
The warmest layer of the atmosphere is :
- Troposphere
- Stratosphere
- Mesosphere
- Ionosphere
The grand period of rainfall in India :
- June-September
- October-December
- March-May
- January-February
Which method of soil moisture measurement is useful for scheduling irrigation to frequently irrigation crops :
- Electrical resistance
- Tensiometers
- Neutron moisture meter
- Thermocouple Psychrometer
The best method for quantitative estimation of changes in soil moisture in situ is :
- Tensiometer
- Electrical resistance
- Neutron moisture meter
- Pressure plate apparatus
The atmosphere is notionally divided into 4 major layers on the basis of vertical------- differences :
- Atmospheric pressure
- Temperature
- Humidity
- Wind speed
Wheat crop requires 40 cm of irrigation water during 120 days irrigation period. How much land can be irrigation with a flow of 20 /second for 12 hours a day :
- 25.9 ha
- 28.9 ha
- 2.59
- 2.89
Statement I – Acid sulphate soil is formed due to formation of Jarosite. Statement II – Acid sulphate soil is found in Himachal Pradesh.
- Both Statement I and Statement II are true
- Both Statement I and Statement II are false
- Statement I is true and Statement II is false
- Statement I is false and Statement II is true
Statement I –Total area of leaves per unit area of the land surface is leaf area index (LAI) Statement II – The proportion of incident light that is intercepted by the crop canopy depend on LAI alone but also on the architecture of the plant community
- Both Statement I and Statement II are true
- Both Statement I and Statement II are false
- Statement I is true and Statement II is false
- Statement I is false and Statement II is true
Statement I –Seedling blight, collar rot, stem rot, and root rot are the important fungal disease of jute crop Statement II – Anthracnose is a major bacterial disease of jute
- Both Statement I and Statement II are true
- Both Statement I and Statement II are false
- Statement I is true and Statement II is false
- Statement I is false and Statement II is true
Statement I – Circulation of air over tropics is dominated by Hadley cell and Walker Cell Statement II – Hadley cell is associated with N-S direction and Walker cell is associated with E-W direction
- Both Statement I and Statement II are true
- Both Statement I and Statement II are false
- Statement I is true and Statement II is false
- Statement I is false and Statement II is true
Statement I –Crop sequence involving cereals and pulses are commonly followed under the irrigated agro- ecosystem in the southern region of Indian sub-continent Statement II – One of the prominent cropping sequences followed in the irrigated agro – ecosystem of southern India is rice-rice –green gram
- Both Statement I and Statement II are true
- Both Statement I and Statement II are false
- Statement I is true and Statement II is false
- Statement I is false and Statement II is true
Statement I – If the Ozone concentration decreases in the atmosphere, more UV radiation will reach the earth’s surface Statement II – The adverse effect of 1oC in the temp. can be compensated by increasing CO2 concentration up to 600 ppm.
- Both Statement I and Statement II are true
- Both Statement I and Statement II are false
- Statement I is true and Statement II is false
- Statement I is false and Statement II is true
Weed control index if weed dry weight of a treatment is 200 g/m2 and that of weed check was 600 g/m2
- 33.3%
- 66.7%
- 25%
- None of these
Directorate of Weed Research is situated at
- Jabalpur
- Karnal
- Jhansi
- Navsari
The Asian Pacific Weed Science Society (APWSS) was founded in
- 1667
- 1985
- 1951
- 1992
National Research Centre for Weed Science (NRCWS), now Directorate of Weed Research (DWR) Jabalpur came into existence on
- 22 April,1982
- 22 April,1985
- 22 April, 1989
- 22 April, 1997
2,4-D was first tested in India in
- 1950
- 1946
- 1943
- 1942
The international Weed Science Society (IWSS) was formed in
- 1955
- 1968
- 1975
- 1985
When NRCWS Jabalpur was upgraded to Directorate of Weed Science Research (DWSR)
- 2005
- 2009
- 2011
- 2014
A widely used pre-plant herbicide in conservation agricultural systems
- Pendimethalin
- Trifluralin
- Glyphosate
- Fluchloralin