Mostrando ítems 1-10 de 28
Understanding global trends in the use of wheat diversity and international flows of wheat genetic resources
This paper discusses the centers of origin and diversity for bread wheat; sketches historical patterns in the sources and use of wheat genetic resources in modern plant breeding; identifies and compares indicators of genetic ...
The contribution of genetic resources and diversity to wheat productivity: A case from the Punjab of Pakistan
This study makes use of data on wheat production in the Punjab of Pakistan from 1979 to 1985 to 1) examine patterns of varietal diversity in farmers' fields both at the regional and district levels and 2) identify how and ...
Institutional change and discontinuities in farmers' use of hybrid maize seed and fertilizer in Malawi: Findings from the 1996-97 CIMMYT/MoLD Survey
This study records the use of hybrid maize seed and fertilizer by small-scale farmers in Malawi, as well as their opinions about these inputs, from 1989-90 through 1996-97. Its main purpose is to determine whether the ...
Organization and performance of national maize seed industries: A new institutionalist perspective
This paper proposes a conceptual framework for analyzing the organization and performance of national maize seed industries. The authors begin by reviewing what several leading economic paradigms have to say about the ...
Wheat breeders' perspectives on genetic diversity and germplasm use: Findings from an international survey
Wheat breeders working in national wheat research programmes around the world, and particularly those in developing countries, are concerned that in the future scientific advance may be limited because wheat genetic diversity ...