Crop Production (Kharif & Rabi)–MCQ Series 16

By Skumar

 

Crop Production (Kharif & Rabi)–MCQ Series 16


PART A: SESAMUM (TIL)

1. Sesamum belongs to which family?

A. Malvaceae
B. Pedaliaceae
C. Fabaceae
D. Asteraceae

✅ Answer: B. Pedaliaceae
📝 Explanation: Sesamum indicum L. belongs to the family Pedaliaceae, as per ICAR agronomy classification.

2. Centre of origin of sesame is:

A. China
B. Africa
C. India
D. Central Asia

✅ Answer: B. Africa
📝 Explanation: Africa is considered the primary centre of origin of sesame, though India is a secondary centre.

3. Sesame is mainly grown as which season crop in India?

A. Rabi
B. Summer
C. Kharif
D. Perennial

✅ Answer: C. Kharif
📝 Explanation: Sesame is predominantly a Kharif oilseed crop, though it can also be grown in summer under irrigation.

4. Ideal soil for sesame cultivation is:

A. Heavy clay soil
B. Acidic soil
C. Well-drained loamy soil
D. Saline soil

✅ Answer: C. Well-drained loamy soil
📝 Explanation: Sesame is highly sensitive to waterlogging and performs best in well-drained loamy soils.

5. Optimum soil pH for sesame is:

A. 4.5–5.0
B. 5.5–6.0
C. 6.0–7.5
D. Above 8.5

✅ Answer: C. 6.0–7.5
📝 Explanation: Neutral to slightly acidic soils are ideal for sesame growth.

6. Recommended seed rate of sesame (line sowing) is:

A. 1–2 kg/ha
B. 3–5 kg/ha
C. 8–10 kg/ha
D. 12–15 kg/ha

✅ Answer: B. 3–5 kg/ha
📝 Explanation: Due to small seed size, low seed rate is sufficient in line sowing.

7. Sesame seeds are rich in which antioxidant?

A. Lycopene
B. Sesamin
C. Carotene
D. Flavonoids

✅ Answer: B. Sesamin
📝 Explanation: Sesamin and sesamol are natural antioxidants present in sesame oil.

8. Sesame is known as:

A. Queen of pulses
B. Golden fiber
C. Queen of oilseeds
D. Poor man’s oilseed

✅ Answer: C. Queen of oilseeds
📝 Explanation: Due to its high oil quality and antioxidant content, sesame is called the Queen of oilseeds.

9. Flowering in sesame is:

A. Cleistogamous
B. Dioecious
C. Self-pollinated
D. Cross-pollinated

✅ Answer: C. Self-pollinated
📝 Explanation: Sesame is predominantly self-pollinated, though some cross-pollination occurs.

10. Sesame capsule generally splits at maturity, known as:

A. Shattering
B. Lodging
C. Dehiscence
D. Abscission

✅ Answer: C. Dehiscence
📝 Explanation: Sesame capsules show dehiscence, causing seed loss if harvesting is delayed.

11. Recommended spacing for sesame is:

A. 15 × 10 cm
B. 30 × 10 cm
C. 45 × 30 cm
D. 60 × 45 cm

✅ Answer: B. 30 × 10 cm
📝 Explanation: Proper spacing ensures aeration and reduces disease incidence.

12. Critical stage of irrigation in sesame is:

A. Seedling stage
B. Flowering stage
C. Capsule development stage
D. All of the above

✅ Answer: D. All of the above
📝 Explanation: Moisture stress at any of these stages severely reduces yield.

13. Major nutrient requirement of sesame is:

A. Nitrogen
B. Phosphorus
C. Potassium
D. Calcium

✅ Answer: A. Nitrogen
📝 Explanation: Nitrogen plays a major role in vegetative growth and yield.

14. Recommended N:P:K dose for sesame (general) is:

A. 20:40:20 kg/ha
B. 40:20:20 kg/ha
C. 60:30:30 kg/ha
D. 80:40:40 kg/ha

✅ Answer: B. 40:20:20 kg/ha
📝 Explanation: This dose is recommended under normal soil fertility conditions.

15. Sesame oil content ranges between:

A. 20–30%
B. 30–35%
C. 40–50%
D. 55–65%

✅ Answer: C. 40–50%
📝 Explanation: Sesame seeds contain high oil percentage with superior quality.

16. Major disease of sesame is:

A. Rust
B. Powdery mildew
C. Phyllody
D. Blast

✅ Answer: C. Phyllody
📝 Explanation: Phyllody is caused by phytoplasma and transmitted by leafhoppers.

17. Sesame crop duration is:

A. 60–70 days
B. 70–90 days
C. 100–120 days
D. 140–160 days

✅ Answer: B. 70–90 days
📝 Explanation: Sesame is a short-duration oilseed crop.

18. Sesame seeds are small, therefore sowing depth should be:

A. 1–2 cm
B. 3–4 cm
C. 5–6 cm
D. 8–10 cm

✅ Answer: A. 1–2 cm
📝 Explanation: Deep sowing reduces germination due to limited seed reserves.

19. Sesame harvesting is done when:

A. Leaves are green
B. Capsules turn yellow
C. Seeds start shedding
D. Capsules fully open

✅ Answer: B. Capsules turn yellow
📝 Explanation: Harvesting at yellow capsule stage minimizes shattering loss.

20. Sesame is sensitive to:

A. Drought
B. Frost
C. Waterlogging
D. Heat

✅ Answer: C. Waterlogging
📝 Explanation: Even short-term waterlogging causes severe yield loss.

21. Botanical name of sesame is:

A. Sesamum orientale
B. Sesamum indicum
C. Sesamum album
D. Sesamum africanum

✅ Answer: B. Sesamum indicum
📝 Explanation: Correct botanical name as per ICAR standards.

22. Seed treatment for sesame is generally done with:

A. Carbendazim
B. Thiram or Carbendazim
C. Mancozeb
D. Copper oxychloride

✅ Answer: B. Thiram or Carbendazim
📝 Explanation: Prevents seed-borne fungal diseases.

23. Sesame is also known as:

A. Gingelly
B. Til
C. Benne
D. All of the above

✅ Answer: D. All of the above
📝 Explanation: Sesame has multiple regional names in India.

24. Weed competition period in sesame is:

A. 0–15 DAS
B. 15–30 DAS
C. 30–45 DAS
D. 45–60 DAS

✅ Answer: B. 15–30 DAS
📝 Explanation: This is the critical weed competition period.

25. Average yield of sesame under good management is:

A. 3–4 q/ha
B. 5–6 q/ha
C. 8–10 q/ha
D. 12–15 q/ha

✅ Answer: C. 8–10 q/ha
📝 Explanation: Yield depends on variety and management practices.

🌻 PART B: SUNFLOWER – 25 MCQs

26. Sunflower belongs to which family?

A. Poaceae
B. Brassicaceae
C. Asteraceae
D. Malvaceae

✅ Answer: C. Asteraceae
📝 Explanation: Sunflower is a member of the composite family Asteraceae.

27. Botanical name of sunflower is:

A. Helianthus tuberosus
B. Helianthus annuus
C. Helianthus indica
D. Helianthus alba

✅ Answer: B. Helianthus annuus
📝 Explanation: Cultivated sunflower species is Helianthus annuus.

28. Centre of origin of sunflower is:

A. Africa
B. India
C. Central America
D. China

✅ Answer: C. Central America
📝 Explanation: Sunflower originated in Central America.

29. Sunflower is mainly grown for:

A. Fiber
B. Protein
C. Oil
D. Starch

✅ Answer: C. Oil
📝 Explanation: Sunflower is an important edible oilseed crop.

30. Sunflower oil is rich in:

A. Saturated fatty acids
B. Oleic acid
C. Linoleic acid
D. Palmitic acid

✅ Answer: C. Linoleic acid
📝 Explanation: Sunflower oil contains high linoleic acid, beneficial for heart health.

31. Recommended seed rate of sunflower (hybrids) is:

A. 3–4 kg/ha
B. 5–6 kg/ha
C. 8–10 kg/ha
D. 12–15 kg/ha

✅ Answer: B. 5–6 kg/ha
📝 Explanation: Hybrid sunflower requires lower seed rate due to bold seeds.

32. Optimum spacing for sunflower is:

A. 30 × 10 cm
B. 45 × 20 cm
C. 60 × 30 cm
D. 75 × 45 cm

✅ Answer: C. 60 × 30 cm
📝 Explanation: Wider spacing supports large capitulum development.

33. Sunflower inflorescence is called:

A. Panicle
B. Spike
C. Capitulum
D. Raceme

✅ Answer: C. Capitulum
📝 Explanation: Composite head inflorescence is termed capitulum.

34. Sunflower is mainly a:

A. Self-pollinated crop
B. Cross-pollinated crop
C. Apomictic crop
D. Vegetatively propagated crop

✅ Answer: B. Cross-pollinated crop
📝 Explanation: Sunflower is predominantly cross-pollinated, aided by bees.

35. Pollination in sunflower is mainly done by:

A. Wind
B. Water
C. Insects
D. Birds

✅ Answer: C. Insects
📝 Explanation: Honey bees play a major role in sunflower pollination.

36. Recommended N:P:K dose for sunflower is:

A. 40:20:20
B. 60:30:30
C. 60:90:60
D. 80:40:40

✅ Answer: C. 60:90:60
📝 Explanation: Sunflower has higher phosphorus requirement.

37. Critical stage of irrigation in sunflower is:

A. Seedling stage
B. Flower initiation
C. Grain filling
D. All of the above

✅ Answer: D. All of the above
📝 Explanation: Moisture stress at any stage affects yield significantly.

38. Sunflower crop duration is:

A. 60–70 days
B. 70–90 days
C. 90–120 days
D. 140 days

✅ Answer: C. 90–120 days
📝 Explanation: Duration varies with season and variety.

39. Sunflower oil content ranges between:

A. 20–30%
B. 30–35%
C. 40–45%
D. 55–60%

✅ Answer: C. 40–45%
📝 Explanation: Oil percentage depends on hybrid and management.

40. Deficiency of boron in sunflower causes:

A. Leaf curling
B. Head rot
C. Hollow stem
D. Rosette formation

✅ Answer: C. Hollow stem
📝 Explanation: Boron deficiency leads to hollow stem and poor seed set.

41. Sunflower harvesting is done when:

A. Leaves are green
B. Back of head turns yellow
C. Seeds start shedding
D. Plant dries completely

✅ Answer: B. Back of head turns yellow
📝 Explanation: This stage ensures maximum oil content.

42. Sunflower is sensitive to:

A. Drought
B. Frost
C. Salinity
D. Shade

✅ Answer: D. Shade
📝 Explanation: Sunflower requires full sunlight for optimum growth.

43. Sunflower performs best in soil pH range of:

A. 4.5–5.5
B. 5.5–6.0
C. 6.5–7.5
D. Above 8.5

✅ Answer: C. 6.5–7.5
📝 Explanation: Neutral soils support better nutrient uptake.

44. Major disease of sunflower is:

A. Rust
B. Downy mildew
C. Blast
D. Smut

✅ Answer: B. Downy mildew
📝 Explanation: Downy mildew is a serious fungal disease in sunflower.

45. Sunflower seed is botanically:

A. Caryopsis
B. Nut
C. Achene
D. Capsule

✅ Answer: C. Achene
📝 Explanation: Sunflower fruit is an achene.

46. Recommended sowing depth of sunflower is:

A. 1–2 cm
B. 3–5 cm
C. 6–8 cm
D. 10 cm

✅ Answer: B. 3–5 cm
📝 Explanation: Ensures good germination and anchorage.

47. Sunflower roots penetrate up to:

A. 30 cm
B. 60 cm
C. 100 cm
D. 200 cm

✅ Answer: D. 200 cm
📝 Explanation: Deep root system helps in drought tolerance.

48. Weed competition period in sunflower is:

A. 0–15 DAS
B. 15–30 DAS
C. 30–45 DAS
D. 45–60 DAS

✅ Answer: B. 15–30 DAS
📝 Explanation: Early weed control is critical for yield.

49. Sunflower is also known as:

A. Surajmukhi
B. Helio crop
C. Oil flower
D. All of the above

✅ Answer: A. Surajmukhi
📝 Explanation: Common Indian name of sunflower is Surajmukhi.

50. Average yield of sunflower under good management is:

A. 8–10 q/ha
B. 10–12 q/ha
C. 15–20 q/ha
D. 25–30 q/ha

✅ Answer: C. 15–20 q/ha
📝 Explanation: Yield varies based on hybrid and agronomic practices.


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