What is the significance of 'allelopathy' in agriculture? MCQ with Answer and Explanation

Explanation:
Stem borer is a major pest of sugarcane, boring into the stem and causing 'dead heart'. Cotton is affected by bollworm.

Explanation:
The Green Revolution began in the 1960s with the introduction of High-Yielding Variety (HYV) seeds (e.g., Mexican wheat varieties like Kalyan Sona), chemical fertilizers, pesticides, and expanded irrigation. Led by M.S. Swaminathan in India and Norman Borlaug globally, it transformed India from food-deficient to self-sufficient, especially boosting wheat and rice in Punjab, Haryana, and western UP. It increased yields dramatically but also led to issues like soil degradation and regional inequalities.

Explanation:
It focused on eastern states, pulses, oilseeds, and sustainable practices in rainfed areas.