Competitive Exams: Agriculture MCQs (Practice-Test 27 of 56)

  1. Which system is used for hybrid seed production in onion?

    1. Self-compatibility

    2. Dioecious

    3. Cytoplasmic male sterility

    4. Genetic male sterility

  2. Match List-with List-and select the correct answer using the code given below the lists:

    List-I (Insect Pest) List-II (Natural Enemy)
    1. Woolly apple aphid

    2. San Jose scale

    3. Coconut caterpillar

    4. Cottony cushion scale

    1. rodolia cardinalis

    2. Aphelinus mail

    3. Bracon brevicornis

    4. Prospaltella perniciosi

    • A
    • B
    • C
    • D
      • 1
      • 2
      • 3
      • 4
      • 2
      • 3
      • 4
      • 1
      • 2
      • 4
      • 3
      • 1
      • 1
      • 3
      • 2
      • 4
  3. What Is the most effective method for transfer of an oligogenic character in an otherwise agronomical superior genotype?

    1. Pedigree

    2. Bulk population

    3. recurrent selection

    4. Backcross

  4. Maintenance and multiplication of A line used in crops like pear millet, is done through

    1. Crossing the plants of ‘A’ line with those of ‘B’ line

    2. Crossing the plants of ‘A’ line with those ‘B’ line

    3. Selfing the plants of ‘A’ line

    4. Crossing the plants of ‘A’ line with any popular variety

  5. The gene-r-ne hypothesis regarding disease resistance in crop varieties has following features:

    1. This hypothesis was proposed for rust in linseed by flor

    2. For each gene for resistance in the host plant, ther is corresponding gene for virulence in the pathogen.

    Which of the features given above is/are correct?

    1. 1 only

    2. 2 only

    3. Both 1 and 2

    4. Neither 1 nor 2

  6. The male gametic nuclei ar the result of mitotic division for which one of the following?

    1. Male gametophyte

    2. Microspores

    3. Microspor mother cell

    4. Generative nucleus

  7. When both the alleles of a gene ar fully expressed in a heterozygote, what is this phenomenon called?

    1. Complete dominance

    2. Over dominance

    3. Co dominance

    4. Pseudo dominance

  8. Which of the following cell organelle (s) cause (s) male sterility in mustard?

    1. Golgi apparatus only

    2. Mitochondrion and Endo-asmic reticulum

    3. Lysosome and Golgi apparatus

    4. Mitochondrion only

  9. Cross-llination in Maize is mainly on account of which one of the following?

    1. Dioecism

    2. Monoecism

    3. Protogyny

    4. Self-compatibility

  10. Consider the following statements:

    1. Additive genetic variance can be utilized to develop a variety.

    2. Dominance variance can be utilized for developing hybrids.

    Which of the statements given above o/are correct?

    1. 1 only

    2. 2 only

    3. Both 1 and 2

    4. Neither 1 nor 2

  11. Consider the following statements: Centr of diversity refer to the area where cultivated plant species and/or their wild relatives show

    1. Ver high adaptation

    2. Low competition with unrelated species

    3. Highest variation

    4. High ecosystem diversity

    Which of the statements given above are correct?

    1. 1 and 2 only

    2. 1 and 3 only

    3. 2 and 3 only

    4. 3 and 4 only

  12. Which one of the following statements is not correct about heteromorphy system of self-compatibility?

    1. SI system is under saprophytic control

    2. It is found in sweet potato and buckwheat

    3. Governed by S locus having pheliotropic effect

    4. Governed by S locus that has two alleles

  13. Which one of the following is the simplest method for testing the General Combining Ability of an inbred Sine?

    1. Single cross

    2. Multiple cross

    3. Top cross

    4. Test cross

  14. Consider the following landmar events in crop variety development in India:

    1. Development of transgenic crops

    2. Semidwarf varieties of wheat and rice

    3. Hybrid cotton

    Which one of the following is the correct chronological sequence of the above events?

    1. 321

    2. 231

    3. 213

    4. 132

  15. Consider the following statements:

    1. Acid lime (Citrus pennivesiculata) is propagated commercially through seeds.

    2. Sweet lime (citrus limettioides) is generally propagated by layering or hardwood cutting.

    Which of the stataements given above is/are correct?

    1. 1 only

    2. 2 only

    3. Both 1 and 2

    4. Neither 1 nor 2

  16. In the context of post-rvest handling, which one among the following vegetables has highest rate of reparation?

    1. Beans

    2. Cabbage

    3. Carrot

    4. Onion

  17. Match List I with List II and select the correct answer using the code given below the lists:

    List-I (Crop) List-II (Cultivar)
    1. Grape

    2. Bringal

    3. Tomato

    4. Capsicum

    1. Arka Navneet

    2. Perlette

    3. Arka Lohit

    4. Arka Vikas

    • A
    • B
    • C
    • D
      • 3
      • 4
      • 1
      • 2
      • 3
      • 1
      • 4
      • 2
      • 2
      • 1
      • 4
      • 3
      • 2
      • 4
      • 1
      • 3
  18. Match List I with List II and select the correct answer using the code given below the lists:

    List-I (Fruit Crop) List-II (recommended spacing)
    1. Banana

    2. Guava

    3. Custar apple

    4. Jackfruit

    1. 6 × 6

    2. 4 × 4

    3. 12m × 12m

    4. 1.2m × 1.2m

    • A
    • B
    • C
    • D
      • 3
      • 1
      • 2
      • 4
      • 4
      • 2
      • 1
      • 3
      • 3
      • 2
      • 1
      • 4
      • 4
      • 1
      • 2
      • 3
  19. Tomato is which one of the following?

    1. Long day plant

    2. Short-y plant

    3. Day neutral plant

    4. Quantitative short-y plant

  20. Which one of the following systems of orchar planting accommodates the maximum number of plants per unit area?

    1. Squar system

    2. Hexagonal system

    3. rectangular system

    4. Contour system

  21. Which one of the following pair is not correctly matched?

      • Seedless watermelon
      • Pusa Bedana
      • Soft-eded guava
      • Sharad seedless
      • Soft-eded mango
      • Sindhu
      • Seedless lime
      • Tahiti
  22. Consider the following pairs: Disease Causal Organism

      • Leaf spot of pigeon
      • Cercospor indica pea (Arhar)
      • Collar rot of groundnut
      • Pellicularia rolfsii
      • Grey Mildew Of Cotton
      • Ramularia areola

    Which of the above pair are correctly matched?

    1. 1and 2 only

    2. 2 and 3 only

    3. 1 and 3 only

    4. 1, 2 and 3

  23. Which one of the following pair is not correctly matched?

      • Bract mosaic virus
      • Banana
      • Yellow vein mosaic
      • Cassava
      • Ring spot virus
      • Papaya
      • Leaf cur virus
      • Tomato
  24. rayan is commonly used as a rootstock in the propagation of which one of the following?

    1. Mango

    2. Custar apple

    3. Tamarind

    4. Sapota

  25. Aonla is best suited to grow under which one of the following?

    1. Acidic soil condition

    2. Slightly acidic to saline sodic soil conditions

    3. Calcareous soil condition

    4. Alkali soil condition

  26. Consider the following statements:

    1. Tomato leaf cur disease is more serious during autumn crop.

    2. Tomato leaf cur disease is airborne.

    Which of the statements given above is/are correct?

    1. 1 only

    2. 2 only

    3. Both 1 and 2

    4. Neither 1 nor 2

  27. Which one of the following methods of grafting is not normally used for plant propagation?

    1. Approach grafting

    2. Bride grafting

    3. Venner grafting

    4. Whip grafting

  28. Consider the following statements:

    1. The flesh and seeds of brinjal fruit conation linoleic and lenolenic acids which help in lowering blood cholesterol.

    2. Cabbage gives protection against bowel cancer due to the presence of indole-carbonyl.

    Which of the statements given above is/are correct?

    1. 1 only

    2. 2 only

    3. Both 1 and 2

    4. Neither 1 nor 2

  29. Match List I with List II and select the correct answer using the code given below the lists:

    List-I (Disorder) List-II (Fruit)
    1. Malformation

    2. Fasciation

    3. Seediness

    4. Granulation

    1. Pineapple

    2. Sweet orange

    3. Mango

    4. Banana

    • A
    • B
    • C
    • D
      • 3
      • 1
      • 4
      • 2
      • 2
      • 4
      • 1
      • 3
      • 3
      • 4
      • 1
      • 2
      • 2
      • 1
      • 4
      • 3
  30. Match List I with List II and select the correct answer using he code given below the lists:

    List-I (Crop) List-II (Family)
    1. Asparagus

    2. Colocasia

    3. Lettuce

    4. radish

    1. Araceae

    2. Compositae

    3. Liliaceae

    4. Cruciferae

    • A
    • B
    • C
    • D
      • 3
      • 2
      • 1
      • 4
      • 4
      • 2
      • 1
      • 3
      • 3
      • 1
      • 2
      • 4
      • 4
      • 1
      • 2
      • 3