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Imports and Plantings of High-Yielding Varieties of Wheat and Rice in the Less Developed Nations

Author

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  • Dalrymple, Dana G.

Abstract

The use of high-yielding varieties of wheat and rice has expanded sharply in recent years. The purpose of this bulletin is to provide statistical data on imports of seed and area planted in individual nations. There is no one standard definition of high-yielding varieties; this report refers largely to the dwarf and semi-dwarf types of wheat and rice developed, respectively, in Mexico and the Philippines. Most of the wheat and all of the reported rice area was in South and East Asia; of the 1969/70 total, 59% was in India and 26% in Pakistan. Limited areas of wheat have been planted in West Asia, North Africa, and Latin America. In addition to presenting statistical data and accompanying documentation, report briefly reviews the development of the major wheat and rice varieties. A discussion of rice improvement in three Communist nations is also included.

Suggested Citation

  • Dalrymple, Dana G., 1971. "Imports and Plantings of High-Yielding Varieties of Wheat and Rice in the Less Developed Nations," USDA Miscellaneous 344103, United States Department of Agriculture.
    • Handle: RePEc:ags:usdami:344103
    DOI: 10.22004/ag.econ.344103
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    File URL: https://ageconsearch.umn.edu/record/344103/files/FEDR-8-1971.pdf
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    References listed on IDEAS

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    1. Ping-Ti Ho, 1956. "Early-Ripening Rice In Chinese History By Ping-Ti Ho," Economic History Review, Economic History Society, vol. 9(2), pages 200-218, December.
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