Sericulture MCQ

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MCQ Questions Papers on Sericulture

1. In any silkworm food plantation, mulching is helpful
(a) To facilitate manuring of soil
(b) To conserve moisture
(c) In photosynthesis process
(d) In intercropping

2. Growth and sprouting of buds cannot be obtained at a temperature
(a) Below 5°C
(b) Below 8°C
(c) Below 10°C
(d) Below 13°C

3. Mulberry crop should not be extract more than _____ of the available water from the soil to regulate plant growth.
(a) 40 – 50%
(b) 50 – 60%
(c) 60 – 70%
(d) 70 – 80%

4. Soil moisture can be measure by
(a) Hygrometer
(b) Hydrometer
(c) Soil texture method
(d) Tensiometer

5. Effective of leaf production when balanced fertilizers are applied along with irrigation
(a) 1 – 2 times
(b) 2 – 3 times
(c) 3 – 4 times
(d) 5 – 6 times

6. Ideal condition for leaf preservation is
(a) 20°C atmospheric temperature
(b) 25°C atmospheric temperature
(c) 15°C atmospheric temperature
(d) 18°C atmospheric temperature

7. In som and soalu nursery, germination of seed starts after
(a) 1 week
(b) 2 weeks
(c) 3 weeks
(d) 4 weeks

8. The seedlings of som need _____ months to attain a height of 1 ft. in a nursery.
(a) 1 month
(b) 2 months
(c) 3 months
(d) 4 months

9. Carica papaya is the food plant of
(a) Oak tasar
(b) Eri
(c) Muga
(d) Tasar

10. Ricinus communis is propagated through
(a) Cutting
(b) Seed
(c) Layering
(d) Grafting

11. Tissue culture is
(a) New micro-propagation method
(b) Involved in genetic engineering
(c) New silkworm breeding method
(d) Involved in new grafting method

12. The somatic number of Ricinus communis is
(a) 20
(b) 24
(c) 28
(d) 30

13. Machilus bombycina is the food plant of
(a) Oak tasar
(b) Eri
(c) Tasar
(d) Muga

14. The food plant of Tropical tasar is
(a) Ailanthus excelsa
(b) Terminalia arjuna
(c) Jatropa curcas
(d) Litsaea polyantha

15. The flowering time of som plant is
(a) December – March
(b) November – December
(c) January – February
(d) March – April

16. Fruit development of Soalu is during
(a) January – February
(b) February – March
(c) April – May
(d) May – August

17. The spacing of seeds sown in the nursery of som and soalu is
(a) 5 cm × 5 cm
(b) 10 cm × 10 cm
(c) 15 cm × 15 cm
(d) 20 cm × 20 cm

18. Mulberry plant is a
(a) Annual plant
(b) Biennial plant
(c) Evergreen
(d) Perennial

19. Mulberry variety that grow wild in the Himalayas is
(a) Morus alba
(b) Morus nigra
(c) Morus sinensis
(d) Morus multicaulis

20. The ideal temperature for growing mulberry is
(a) 22 – 25°C
(b) 23 – 26°C
(c) 24 – 29°C
(d) 25 – 30°C

21. Row system of planting mulberry is practiced commonly in
(a) West Bengal
(b) South India
(c) Jammu & Kashmir
(d) N.E. India

22. Nitrogen content in Urea is
(a) 34%
(b) 40%
(c) 46%
(d) 56%

23. The recommended dosage of NPK for Rain-fed mulberry plantation is in the ratio of
(a) 2:1:1
(b) 2:2:2
(c) 2:1:2
(d) 1:2:1

24. The recommended dosage of NPK for irrigated mulberry plantation is in the ratio of
(a) 2:1:1
(b) 2.5:1:2
(c) 2:1:2
(d) 2.5:1:2.5

25. Vermicompost is associated with
(a) Fertilizers
(b) Organic manures
(c) NPK
(d) Green Manuring

26. Kesseru is the food plant of
(a) Muga silkworm
(b) Oak tasar silkworm
(c) Temperate tasar silkworm
(d) Eri silkworm

27. Assam is famously associated with
(a) Eri silk
(b) Mulberry silk
(c) Tasar silk
(d) Muga silk

28. Among the following food plants mentioned which one is used for rearing domesticated silkworm?
(a) Soalu
(b) Castor
(c) Oak
(d) Tapioca

29. Which one is not fungal root disease among the Mulberry plant diseases mentioned below?
(a) White root rot
(b) Violet root rot
(c) Red root rot
(d) Fusarium root rot

30. What causes rotting of Mulberry stem due to the destruction of Xylem?
(a) Fungus
(b) Burning
(c) Mechanical
(d) Chemical

31. What is the most common disease in Mulberry nurseries?
(a) Wilt disease
(b) Twig blight
(c) Collar rot
(d) Stem blight

32. When the Mulberry leaves harvested from the Powedery mildew diseased plants, the protein content is reduced by about
(a) 10 %
(b) 30 %
(c) 50 %
(d) 70 %

33. Appearance of small whitish spots circular or irregular with a yellow halo followed by the falling off the affected leaves is the symptoms of what Mulberry plant disease?
(a) Leaf rust
(b) Black leaf spot
(c) Fungal leaf disease
(d) Leaf spot disease

34. Scientific name of Nematodes is
(a) Pasteuria penetrans
(b) Meloidogyne incognita
(c) Paecilomyces lilacimus
(d) Episomus fugulus

35. Among the nutrients which one is the constituent of all proteins, enzymes, chlorophyll, vitamins, hormones and nucleic acids in plants?
(a) Calcium
(b) Potasium
(c) Nitrogen
(d) Magnesium

36. Yellowing of the tender leaves (chlorosis) with subsequent abscission, abnormally long and woody stem and roots, arresting of growth is the deficiency symptoms of
(a) Iron
(b) Boron
(c) Zinc
(d) Sulphur

37. What disease damage the shoots and killing the branches in Tasar food plants?
(a) Leaf curl
(b) Stem borer
(c) Zinc deficiency
(d) Root rot

38. Name the pest which causes damage to Muga food plant leaves by sucking the plant sap and cause wilting of leaves :
(a) Thrips
(b) Semiloopers
(c) Apanteles
(d) Leaf roller

39. Appearance of colourless shiny patches appear under the surface of the leaves turning the upper surface pale brown in Castor plants is the disease of
(a) Leaf spot
(b) Rust
(c) Seedling blight
(d) Powdery mildew

40. Growing resistant variety and Blitox (0.3 %) spray is the control measure of Castor against which pest and disease?
(a) Leaf spot
(b) Powdery Mildew
(c) Rust
(d) Castor butterfly

41. What is the easy and practical control measures for Mulberry pests under field conditions
(a) Physical
(b) Cultural
(c) Biological
(d) Chemical