Crop Production (Kharif & Rabi)–MCQ Series 12

By Skumar

 

Crop Production (Kharif & Rabi)–MCQ Series 12

COTTON 

Kharif Fiber Crop | ICAR Pattern

A. General & Botany (MCQs 1–10)

1. Botanical name of American cotton is:
A. Gossypium hirsutum
B. Gossypium arboreum
C. Gossypium herbaceum
D. Gossypium barbadense

✅ Answer: A
📝 Explanation: G. hirsutum is high-yielding American cotton widely cultivated in India.

2. Indian cotton is:
A. Gossypium hirsutum
B. Gossypium arboreum
C. Gossypium barbadense
D. Gossypium herbaceum

✅ Answer: B
📝 Explanation: G. arboreum is indigenous cotton grown in India.

3. Cotton belongs to which family?
A. Fabaceae
B. Malvaceae
C. Poaceae
D. Solanaceae

✅ Answer: B

4. Cotton is a:
A. Annual crop
B. Biennial crop
C. Perennial crop cultivated as annual
D. Short-day perennial

✅ Answer: C

5. Pollination in cotton is primarily:
A. Self-pollinated
B. Cross-pollinated by insects
C. Wind-pollinated
D. Both self and insect cross-pollinated

✅ Answer: D
📝 Explanation: Cotton is mostly self-pollinated, but insects (like bees) enhance cross-pollination.

6. Number of chromosomes in tetraploid cotton (G. hirsutum):
A. 2n = 26
B. 2n = 38
C. 2n = 52
D. 2n = 60

✅ Answer: C

7. Inflorescence type in cotton is:
A. Spike
B. Axillary sympodial branch
C. Raceme
D. Panicle

✅ Answer: B

8. Cotton fiber develops from:
A. Seeds
B. Ovary wall
C. Seed coat epidermis
D. Leaves

✅ Answer: C

9. Growth habit of cotton:
A. Erect
B. Semi-erect
C. Bushy / Shrubby
D. Climbing

✅ Answer: C

10. Cotton seeds contain:
A. 10–12% oil
B. 15–20% oil
C. 25–30% oil
D. 35–40% oil

✅ Answer: B
📝 Explanation: Cottonseed is used for oil extraction; protein-rich cake used as feed.

B. Climate & Soil (MCQs 11–20)

11. Cotton requires temperature for optimal growth:
A. 10–20°C
B. 20–30°C
C. 30–40°C
D. 35–45°C

✅ Answer: B

12. Cotton is highly sensitive to:
A. Frost
B. Drought
C. Waterlogging
D. Salinity

✅ Answer: C

13. Ideal soil for cotton cultivation:
A. Sandy loam, well-drained
B. Heavy clay
C. Peaty soil
D. Saline soil

✅ Answer: A

14. pH suitable for cotton soil:
A. 4–5
B. 5.5–7.5
C. 8–9
D. >9

✅ Answer: B

15. Annual rainfall requirement for cotton:
A. 400–600 mm
B. 600–1200 mm
C. 1200–1500 mm
D. 1500–2000 mm

✅ Answer: B

16. Cotton is a:
A. Kharif crop
B. Rabi crop
C. Zaid crop
D. Perennial only

✅ Answer: A

17. Long-day photoperiod promotes:
A. Vegetative growth
B. Flowering
C. Pod formation
D. Root growth

✅ Answer: B

18. Cotton tolerates drought:
A. True
B. False

✅ Answer: A

19. Cotton is sensitive to which stage stress:
A. Germination
B. Flowering and boll formation
C. Vegetative growth
D. Harvesting

✅ Answer: B

20. Major cotton-growing states in India:
A. Punjab, Haryana
B. Maharashtra, Gujarat, Telangana
C. Assam, West Bengal
D. Kerala, Tamil Nadu

✅ Answer: B

C. Varieties & Seed (MCQs 21–30)

21. Recommended seed rate for cotton:
A. 5–7 kg/ha
B. 10–15 kg/ha
C. 20–25 kg/ha
D. 30–40 kg/ha

✅ Answer: B

22. Sowing time in North India:
A. March–April
B. June–July
C. September–October
D. January–February

✅ Answer: B

23. Spacing for Indian cotton:
A. 60 × 30 cm
B. 90 × 45 cm
C. 45 × 15 cm
D. 30 × 10 cm

✅ Answer: B

24. Seed treatment before sowing includes:
A. Captan / Thiram
B. Mancozeb
C. Imidacloprid
D. Both A & C

✅ Answer: D

25. High-yielding cotton varieties in India:
A. H-4, F-414, Suraj
B. Varuna, Pusa Bold
C. Kent, Victory
D. Sharbati, HD-2967

✅ Answer: A

26. Cotton is propagated by:
A. Seed
B. Cuttings
C. Rhizomes
D. Tissue culture

✅ Answer: A

27. Crop duration of Indian cotton:
A. 120–150 days
B. 180–200 days
C. 90–110 days
D. 210–240 days

✅ Answer: B

28. Cotton is grown mainly for:
A. Fiber
B. Oilseed
C. Both fiber and seed
D. Fodder

✅ Answer: C

29. Seed cotton yield under good management:
A. 15–20 q/ha
B. 25–30 q/ha
C. 35–40 q/ha
D. 45–50 q/ha

✅ Answer: B

30. Cotton fiber is rich in:
A. Cellulose
B. Protein
C. Oil
D. Lignin

✅ Answer: A

D. Nutrient, Irrigation, Weed & Pest Management (MCQs 31–50)

31. Nitrogen requirement of cotton (kg/ha):
A. 40–50
B. 80–100
C. 120–150
D. 200–250

✅ Answer: C

32. Phosphorus requirement (kg/ha):
A. 20–40
B. 50–60
C. 80–100
D. 120–150

✅ Answer: B

33. Potassium requirement (kg/ha):
A. 40–60
B. 80–100
C. 120–150
D. 200

✅ Answer: A

34. Fertilizer application timing:
A. Full at sowing
B. Split: basal + top-dressing at 30–40 DAS
C. Foliar only
D. None

✅ Answer: B

35. Critical irrigation stage of cotton:
A. Germination
B. Flowering & boll formation
C. Vegetative
D. Harvesting

✅ Answer: B

36. Common weeds in cotton:
A. Cyperus rotundus
B. Echinochloa colona
C. Phalaris minor
D. All of the above

✅ Answer: D

37. Common herbicide used in cotton:
A. Pendimethalin
B. Atrazine
C. Glyphosate
D. Butachlor

✅ Answer: A

38. Major pest of cotton:
A. American bollworm
B. Jassid
C. Whitefly
D. All of the above

✅ Answer: D

39. Major diseases of cotton:
A. Alternaria leaf spot
B. Bacterial blight
C. Fusarium wilt
D. All of the above

✅ Answer: D

40. Cotton harvesting stage:
A. 50% bolls open
B. 100% bolls open
C. Flowering stage
D. Seedling stage

✅ Answer: B

41. Cotton fiber yield depends on:
A. Boll size
B. Boll number
C. Plant population
D. All of the above

✅ Answer: D

42. Cottonseed oil content:
A. 10–15%
B. 18–22%
C. 28–32%
D. 35–40%

✅ Answer: B

43. Cotton crop rotation helps in:
A. Pest & disease management
B. Soil fertility improvement
C. Crop diversification
D. All of the above

✅ Answer: D

44. Cotton is suitable for:
A. Rainfed areas
B. Irrigated areas
C. Both
D. Only coastal regions

✅ Answer: C

45. Cotton harvesting can be done by:
A. Hand picking
B. Mechanical picker
C. Both A & B
D. Swathing

✅ Answer: C

46. Cotton crop duration:
A. 90–120 days
B. 120–150 days
C. 180–200 days
D. >220 days

✅ Answer: C

47. Cotton is important in India for:
A. Fiber production
B. Employment generation
C. Export
D. All of the above

✅ Answer: D

48. Cotton straw is used as:
A. Fodder
B. Mulch
C. Fuel
D. Compost

✅ Answer: A

49. Cottonseed cake is used as:
A. Fertilizer
B. Animal feed
C. Oil extraction
D. Pesticide

✅ Answer: B

50. Cotton fiber quality is assessed by:
A. Length
B. Strength
C. Micronaire
D. All of the above

✅ Answer: D


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