Wheat.
Crop variety improvement and its effect on productivity: the impact of international agricultural research（2003）
摘要
AbstractIn this chapter, some results from the International Maize and Wheat Improvement Centre (CIMMYT) wheat impacts study, which focused on wheat genetic improvement research at CIMMYT and in national agricultural research system wheat improvement programmes. Wheat variety releases in developing countries during 1966-70, and the economic impacts of high-yielding varieties are briefly covered.
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