ICAR JRF Entrance Exam

1. The average concentration of carbon dioxide in the atmosphere is:

(A) 0.03 ppm (B) 30 ppm

(C)0.3 ppm (D) 300 ppm

2. Agrostology is the study of:

(A) Root (B) Grasses

(C) Flower (D) Fruit

3. Atmospheric layer nearest to earth Surface is

(A) Biosphere (C) Exosphere

(B) Thermosphere (D) Troposphere

4. Plant that grow on extremely dry soil are classified under:

(A)Thalophytes (B) Hydrophytes

(C)Xerophytes (D) Hydroponics

5. Ground water table is measured by :

(A) Tensiometer (B) Piezometer

(C) Pressure plate (D) Neutron probe

6. Mycorrhiza is associated with what part of plants?

(A) Roots (B) Leaf

(C) Stem (D) Fruits

(A) Urea (B) Calcium nitrate

(C) Ammonium chloride (D) Ammonium sulphate

8. Which food is designated as “Boneless meat”?

(A)Banana (B) Potato

(C)Soybean (D) Tapioca

9. Which of the following control the root initiation, cell elongation and
apical

dominance?

(A)Auxins (B) ABA

(C) Gibberellins (D) Ethylene

10. Study of soil from the stand point of higher plant is known as :

(A) Pedology (B) Physiology

(C)Edaphology (D) Geo physics

11. Pruning is most essential for:

(A)Cauliflower (B) Rubber

(C)Tea (D) Chinchona

12. The progeny of breeder seed is:

(A)Formation seed (B) Nucleus seed

11. The basis of farm budgeting is:

(A)production function analysis (B) Linear programming

(C) Cost – benefit analysis (D) Farm planning

13. The largest tea production state in India is:

(A)Tamil Nadu (B) Assam

(C)Meghalaya (D) Kerala

14. The plant nutrient which help in translocation of sugars and starch
is :

(A) Mg (B) Mo

(C) K (D) Na

15. Saffron is largely produced in:

(A) J & K (B) Kerala

(C) Himachal Pradesh (D) Uttarakhand

16. A crop that can supply oil for petrochemicals is:

(A) Neem (B) Rubber

(C)Macadamia (D) Jatropha

17. IA market guided by rules and regulation is called :

(A) Perfect market (B) Regulated market

18. Most widely cultivated mustard type in India is:

(A)Yellow / brown sarson (B) Black mustard

(C) Toria (D) Indian mustard

19. C4 plant normaly produce more biological yield than C3 plant because
of:

(A) More photorespiration (B) Less photorespiration

(C) Less photophosphorylation (D) More photophosphorylation

20. Absolute zero is:

CC (B) 273 (A)- 273

FK (D) 273 (C) 273

21. In India maximum area under wheat is occupied by the Species?

(A)Triticum aestivum (B) Triticum dicoccum

(C) Triticum durum (D) Triticum vulgare

22. Which among the following colures absorbs more radiation?

(A) Blue (B) Black

(C)Red (D) White

23. Impect of green house effect is:

(A)Global warming (B) Ice melting

24. Which of the following elements is most mobile in soil ?

(A) Ca (B) K

(C) Mg (D) N

25. The most deficient micro – nutrient in Indian soil is :

(A)Cu (B) Mn

(C) Zn (D) B

26. Magnesium is a constituent of :

(A) Nucleic Acid (B) Enzyme system

(C) Cell wall (D) Chlorophyll

27. The C : N ratio of arable soil commonly ranges from :

(A) 6 : 1 to 7: 1 (B) 18: 1 to 19: 1

(C) 8 : 1 to 15:1 (D) 3 : 1 to 4: 1

28. Dwarfing gene in wheat is :

(A) Nif – gene (B) Norin

(C) Dee – gee – woo – gen (D) Proteina

29. Which of the following element immobile in soil but mobile in plants?

(A)S (B) B
(C) Zn (D) P

30. Which soil has highest efficiency?

(A)Loamy soil (B) Sandy soil

(C) Clay soil (D) None of these

ICAR JRF Entrance Exam

1. Dangerous gas for depletion of ozone layer is:

(A)Ethane (B) Methane

(C)CFC (D) Carbon-dioxide

2. Which of the following is not a biopesticide?

(A) Bioneem (B) Carbaryl

(C) Biolap (D) Dipel

3. Major cropping system of trans-gangatic plains is

(A)Soybean – wheat (B) Rice – rice

(C) Rice –wheat (D) Maize – wheat

4. Photosynthetic inhibition by 02 is called:

(A) Reaction (B) Warburg’s effect

(C) Back inhibition (D) Competitive effect

5. Crop logging is done in

(C)Tobacco (D) Cotton

6. Blue revolution is related with:

(A) Crops (B) Energy source

(C) Fish (D) Oilseeds

7. Inflorescence in rice is known as

A) Ear (B) Raceme

(C) Spike (D) Panicle

8. Alluvial soils are found in :

(A) Deserts (B) Forests

(C) River delta (D) Mountains

9. Weight of one cotton bale is

(A)170 Kg (B) 160 Kg

(C) 180 Kg (D) 190 Kg

10. Hybrid cotton in India was evolved for the first time in

(A) 1975 (B) 1980

(C) 1970 (D) 1985

11. Net cultivated area in India during 2004- 05 was

(A)138 million hectare (B) 141 million hectare

12. The relative proportion of sand, silt and clay is called

(A) Soil texture (B) Soil aggregation

(C) Soil structure (D) Soil taxonomy

13. Which of the following crops is thermo-insensitive?

(A) Sunflower (B) Wheat

(C) Rice (D) Jowar

14. The IARI was established in : 24.

(A)1907 (B) 1909

(C) 1904 (D) 1905

15. In which of the following crops GM varieties are available for

(A) Mustard (B) Cotton

(C) Soybean (D) All of the above

16. Photo-periodically rice is a

(A)Day neutral plant (B) Long day plant

(C) Short day plant (D) None of these

17. The present level of carbon-dioxide in atmosphere is :

(A)190 ppm (B) 295 – 300 ppm

18. Maize belongs to the category :

(A)Bisexual (B) Monoecious

(C) Dioecious (D) None of these

19. Pheromone trap attracts:

(A)Female moths (B) Female bugs

(C) Male moths (D) Caterpillars

20. Origin place of soybean is

(A)Brazil (B) Mexico

(C) China (D) Peru

21. India rank first in the production of the following crops in the world:

(A)Rice (B) Wheat

(C) Soybean (D) Pigeon-pea

22. In plants, enzyme responsible for the synthesis of the malic acid is :

(A) Rubisco (B) PEP carboxylase

(C)Kinase (D) Urease

23. Which soil has highest efficiency?

(A)Loamy soil (B) Sandy soil

24. Which of the following insecticides may be recommended for the

termites?

(A)Chlorpyriphos (B) Nimbicidine

(C) Dimethonate (D) Methyl- 0 – demetone

25. Correct order of rice producing countries is

(A) China> India> Indonesia> Thailand (B) India> China> Indonesia>

(C) Indonesia> Thailand> China> India (D) None on these

26. The depth of seeding in wheat is depends on

(A) Length of mesocotyl (B) Length of radical

(C) Length of coleoptiles (D) None of these

27. IGFRI is located at:

(A) Jallandhar (B) Jodhpur

(C) Jhansi (D) Jorhat

28. The photosynthetically active (PAR) falls in the range of

(A) 400 – 700 nm (B) 100- 400 nm

(C) 700- 1000 nm (D) None of the above

29. Missing data are calculated by using

(C) ANOVA (D) None of these

30. Soil mulch is useful in:

(A) Minimize evaporation losses (B) Improving aeration

(C) Improving drainage (D) Removing weeds