Question

Which crop requires a frost-free period of about 210 days for its proper growth?

• A. Tea
• B. Cotton
• C. Sugarcane
• D. Wheat

Answer 1

Answer:

B. Cotton

• Correct Answer Option B) Cotton

• Cotton is a crop that requires a frost-free period of approximately 210 days for its proper growth and development. This extended frost-free period is essential because cotton is a warm-season crop that is extremely sensitive to frost at all stages of its growth cycle.

• Cotton requires a long growing season with consistently warm temperatures. The plant needs:

• Temperature range of 21-27°C (70-80°F) for optimal growth

• At least 180-210 frost-free days from planting to harvest

• Warm conditions during germination, flowering, and boll development

• Frost can severely damage or kill cotton plants at any stage, which is why the extended frost-free period is crucial. The 210-day requirement allows sufficient time for:

• Seed germination and early growth

• Vegetative development

• Flowering and boll formation

• Fiber development and maturation

• Harvesting

• Other crops mentioned have different requirements:

• Tea can tolerate cooler conditions and doesn't need such an extended frost-free period

• Sugarcane requires warm conditions but has different growing patterns

• Wheat is actually a cool-season crop that can tolerate some frost

• Therefore, cotton is the crop that specifically requires about 210 days of frost-free conditions for proper growth and successful cultivation.