Competitive Exams: Agriculture MCQs (Practice-Test 35 of 56)

  1. Evidence for universal natur of flowering hormone has emerged from experiments involving

    1. Defoliation

    2. reciprocal grafting

    3. Night interruption

    4. Application of hormones

  2. Substituted adenine compounds which promote cell division in plant tissues would include

    1. Cytokinins

    2. Gibberellins

    3. Morph actins

    4. Triacontanols

  3. When meristems of plants become dormant, then is

    1. Inhibition of auxins

    2. Inhibition of cytokinins

    3. Inhibition of gibberellins

    4. Accumulation of abscissas acid

  4. Match List I with List II and select the correct answer:

    List-I (Purpose) List-II (Most appropriate temper tore)
    1. For pasteurization of less acidic vegetable products

    2. For pasteurization of fruit juices.

    3. For killing yeasts, causing nonpoisonous type of decay in fruit and vegetable products

    4. For blanching okr befor canning

    1. 60° C

    2. 87° -° C

    3. 116° -1° C

    4. 10° C

    5. 100° C

    • A
    • B
    • C
    • D
      • 3
      • 5
      • 4
      • 1
      • 5
      • 1
      • 4
      • 2
      • 5
      • 2
      • 1
      • 4
      • 3
      • 5
      • 1
      • 2
  5. Survy is caused by the deficiency of

    1. Carotene

    2. riboflavin

    3. Ascorbic acid

    4. Alpha tocopherol

  6. Which one of the following pair is a rich source of iron?

    1. Sapota (chiku) and ash-ound

    2. Papaya and cabbage

    3. Amaranth sand banana

    4. Brinjal and citrus

  7. Which one of the following crops can be grown successfully as an intercrop in mango orchar which has 10-ar old trees?

    1. Wheat

    2. Onion

    3. Maize

    4. Turmeric

  8. Which one of the following crops is best suited as inter crop in banana?

    1. Papaya

    2. Persimon

    3. Ginger

    4. Plum

  9. ‘Bardari’ is one of the main features of

    1. Italian garden

    2. English garden

    3. Mughal garden

    4. Japanese garden

  10. Match List I (flowering trees) with List II (color of the flower) and select the correct answer:

    List-I List-II
    1. Amherstina nobilis

    2. Butea monosperma

    3. Callistemon lanceolatus

    4. Cassia siamia

    1. Bright flaming scarlet orange

    2. Vermilion-lor-pped yellow

    3. Scarlet

    4. Yellow

    • A
    • B
    • C
    • D
      • 2
      • 1
      • 3
      • 4
      • 2
      • 3
      • 1
      • 4
      • 4
      • 3
      • 2
      • 1
      • 4
      • 1
      • 3
      • 2
  11. Which one of the following species of climber is valued for the beauty of its foliage?

    1. Antigonan leptopus

    2. Clerodendron splendens

    3. Monster deliciosa

    4. Tecoma grandiflora

  12. The main insect reported to be responsible for affecting pollination in mango is

    1. Honey bee (Apis indica)

    2. Common house fly (Musca domestica)

    3. A dipterous fly (Melipona spp.)

    4. A hour fly (Syrphidae spp.)

  13. Match List I (fruits) with List II (commercial methods of propagation) and select the correct answer:

    List-I List-II
    1. Mango

    2. Aonla

    3. rapaya

    4. Jack fruits

    1. Seed

    2. Air layering

    3. Budding

    4. Veneer grafting

    • A
    • B
    • C
    • D
      • 4
      • 3
      • 1
      • 2
      • 4
      • 3
      • 2
      • 1
      • 1
      • 4
      • 3
      • 2
      • 1
      • 4
      • 2
      • 3
  14. Brinjal is considered to have had its origin in

    1. China

    2. Africa

    3. India

    4. Japan

  15. Which of the following pair are correctly matched?

      • Internal necrosis of jack fruit
      • Boron deficiency
      • Black tip of mango
      • Pollution (Fumes from brick kilns)
      • Cavity spot of carrot
      • Calcium deficiency

    Select the correct answer using the codes given below:

    1. 1, 2 and 3

    2. 1 and 2

    3. 1 and 3

    4. 2 and 3

  16. Consider the following fruits:

    1. Mandarin

    2. Peach

    3. Mango

    4. Banana

    The correct sequence in relation to the cold tolerance (low to high) of these fruits is

    1. 4, 3, 1, 2

    2. 3, 4, 2, 1

    3. 3, 4, 1, 2

    4. 4, 3, 2, 1

  17. Coffee rust is caused by

    1. Uromyces hobsoni

    2. Hemileia vastatrix

    3. Cronartium ribicola

    4. raveneha emblicae

  18. The plant disease primarily responsible for the “Great Bengal Famine” of 1943 was

    1. Blast disease of rice

    2. Bacterial blight of rice

    3. Udbatta disease of rice

    4. Brown leaf spot of rice

  19. Pectinolytic enzymes of plant pathogens play a major role during pathogenesis in diseases like

    1. rusts

    2. Downy mildew

    3. Wilts, damping-f and root/foot rots

    4. Powder mildew

  20. Which one of the following insects is a gregarious pest?

    1. Sorghum shoot fly

    2. Spotted bollworm

    3. Migrator locust

    4. rice caseworm

  21. Match List I with List II and select the correct answer:

    List-I (Crops) List-II (Smut diseases)
    1. Barley

    2. Paddy

    3. Sorghum

    4. Sugarcane

    1. Grain smut

    2. Whip smut

    3. False smut

    4. Flag smut

    5. Covered smut

    6. Stinking smut

    • A
    • B
    • C
    • D
      • 5
      • 3
      • 2
      • 6
      • 5
      • 3
      • 1
      • 2
      • 1
      • 4
      • 2
      • 6
      • 1
      • 5
      • 4
      • 6
  22. Match List I with List II and select the correct answer:

    List-I (Disease) List-II (Causal organism)
    1. War disease of potato

    2. White rust of crucifers

    3. Blister blight of tea

    4. Panama disease of banana

    1. Phytophthor parasitica

    2. Albugo candida

    3. Uncinula necator

    4. Synchytrium endobiticum

    5. Exobasidium vexans

    6. Fusarium oxysporum f. Sp. Cubense

    • A
    • B
    • C
    • D
      • 2
      • 4
      • 3
      • 1
      • 4
      • 2
      • 5
      • 6
      • 1
      • 2
      • 3
      • 6
      • 2
      • 4
      • 5
      • 3
  23. Which one of the following is the correct mode of infection in Ergot of bajr (pearl millet)?

    1. Shoot infection

    2. Local infection of blossom

    3. Seedling infection

    4. Systemic infection

  24. Which one of the following truly diagnoses the infestation by the sorghum shoofly?

    1. Formation ‘dead heart’ in the early seedling stage of sorghum which can be easily pulled out

    2. Formation of ‘dead heart’ and a bunchy top during the later seedling stage of sorghum

    3. Formation of ‘dead heart’ which cannot be easily pulled out during the later seedling stage of formation

    4. Formation of silver shoot during the early seedling stage of sorghum

  25. Tomato leaf cur virus is transmitted by

    1. Aphid

    2. Whitefly

    3. Grasshopper

    4. Butterfly

  26. Consider the following statements: The problem of ‘soil sickness’ can be dealt with effectively by

    1. Crop rotation

    2. Mixed cropping

    3. resistant variety

    4. Soil amendment

    Of these statements

    1. 1 and 4 are correct

    2. 1 and 2 are correct

    3. 2, 3 and 4 are correct

    4. 1, 2, 3 and 4 are correct

  27. Which one of the following pests is controlled through the application of a grease band around the tree trunk?

    1. Mango mealy bug

    2. Trunk borer of mango

    3. Codling moth on apple

    4. Woolly aphis on apple

  28. Identify the correct sequence in which fungi toxic activity of the following were reported:

    1. Dithiocarbamates

    2. Bordeaux mixture

    3. Captain

    4. Oxathin derivatives

    Select the correct answer using the codes given below:

    1. 1, 2, 3, 4

    2. 2, 1, 4, 3

    3. 2, 1, 3, 4

    4. 1, 2, 4, 3

  29. The quantity of endosulfan 35% EC required for treating an area which needs 1000 liter of spray fluid at 0.05% (a. i.) strength is

    1. 35 − 0.05/1000 liters

    2. 2.5 − 1000/1000 liters

    3. 1000 − 0.05/35 liters

    4. 35 − 1000/0.05 liters

  30. Which one of the following tissues is most suitable for tissue cultur to produce virusfree plants of potato?

    1. Leaf tissue

    2. Pollen

    3. Embryo tissue

    4. Meristem tip tissue