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Development and spread of high-yielding varieties of wheat and rice in the less developed nations
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Development and spread of high-yielding varieties of wheat and rice in the less developed nations
Reviews the development of high-yielding varieties (HYV"s) of wheat and rice in less developed countries (LDC"s) from 1965-66 crop year, when these varieties first came into use, through 1976-77 and statistically documents their yearly spread.
Dalrymple, Dana G. (1932-2018) · 1970
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Abstract
Major emphasis is placed on semi-dwarf varieties (1) developed at the International Maize and Wheat Improvement Center in Mexico and the International Rice Research Institute in the Philippines, and/or (2) offspring of these or similar varieties developed in national breeding programs. Data are compiled for individual developing nations, which have been grouped into four geographic regions: (1) Asia (South and East), (2) Near East (West Asia and North Africa), (3) Africa, and (4) Latin America. This is the 6th edition of this report (most recent, August 1976); it has been updated, reorganized, and includes several additions.
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