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How did dwarf rice varieties increase grain production?
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Plant breeding
Triticale is a hybrid of rye and wheat.
Dwarf rice varieties increased grain production primarily through their sturdy physical structure, which allows them to support a greater yield of grain without lodging (falling over).1
Beyond their structural advantages, these varieties are typically early-maturing. This trait is significant because it clears the land more quickly, often enabling farmers to plant an additional crop of rice or other crops within the same year.1
The development of these high-yield, often pest-resistant strains—such as the famous "miracle rice" (IR8)—was a cornerstone of the Green Revolution. By providing more stable and abundant harvests, these varieties helped reduce hunger and poverty in many developing nations during the mid-20th century.12