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SSC Geography QUESTION #6315
Question 1
Which Green Revolution innovation had the most significant impact on wheat and rice yields in developing countries during 1960s-1980s?
  • Chemical fertilizers and pesticides
  • High-yielding variety (HYV) seeds with dwarfing genes✔️
  • Mechanization with tractors and harvesters
  • Irrigation infrastructure expansion
Correct Answer Explanation
HYV seeds with semi-dwarf genes (from Norman Borlaug's wheat, IR8 rice) were the cornerstone innovation. Dwarfing prevented lodging, allowing plants to support heavier grain heads and respond to fertilizer without falling over, dramatically increasing yields.