Mostrando ítems 1-10 de 35
Impacts of international wheat breeding research in the developing world, 1966-90
1986-90. Overall, varieties originating directly from CIMMYT crosses or from NARS crosses using a CIMMYT parent occupy 40 million hectares of wheat in the developing world. It is estimated that adoption of MVs from 1977 ...
A joint-product analysis of the adoption of modern cereal varieties in developing countries
Semi-dwarf wheat varieties have been slow to diffuse in some regions despite their superior grain yield. This paper analyses varietal differences in yields of the joint products of grain and straw, the decision to adopt ...
Has the green revolution been sustained? The quantitative impact of the seed-fertilizer revolution in Pakistan revisited
Quantitative impacts of the Green Revolution on food production in the Pakistan Punjab are reviewed and the effects of different technologies on wheat yields over the past two decades decomposed. New quantitative evidence ...