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National and International Wheat Improvement Research in the Post-Green Revolution Period: Evolution and Impact

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National and International Wheat Improvement Research in the Post-Green Revolution Period: Evolution and Impact

Byerlee, D. & G. Traxler 1995

American Journal of Agricultural Economics 77: 268-278.

The role of IARC-generated technology in the global system of spring wheat improvement is examined for the period, 1977-90. Nine of the thirty-eight developing countries that produce spring wheat demonstrate the capacity to develop varieties from their own crosses; the other countries focus on screening CIMMYT germplasm for direct release. Over 40% of spring wheat area is sown to "direct transfer" CIMMYT varieties, indicating that CIMMYT research remains an important complement to NARS research. An "ex post" rate of return above 50% is estimated for wheat research investments in developing countries, with the highest returns occurring in the South Asia region and in irrigated and high-rainfall environments. Future returns above 35% are projected.

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