Mostrando ítems 1-10 de 27
International wheat breeding research in Eastern and Southern Africa, 1966-97
This paper describes and analyzes some of the impacts of wheat improvement research in seven countries in the Eastern and Southern regions of Africa. the countries South Africa, Ethiopia, Sudan, Kenya, Zimbabwe, Tanzania, ...
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 ...
Economic criteria for establishing plant breeding programs
Using economics to explain spatial diversity in a wheat crop: Examples from Australia and China
Spatial diversity indicators may serve an important function for policymakers as they seek to manage crop genetic diversity and potential externalities associated with diffusion of some types of genetically improved crops. ...
New wheat varieties and the small farmer
International collaboration in crop improvement research: Current status and future prospects
Investments over the past 35 years have created s system of national and international research centers that has revolutionized the supply of improved cereal varieties to developing country farmers. The newly created ...
Sources of productivity growth in wheat: A review of recent performance and medium-to long-term prospects
Sources of yield growth in wheat are investigated based on a stylized framework of technical change. Evidence suggests that the relative contribution of input intensification to yield growth has diminished in recent years ...
Changing competitiveness of the wheat sector of Kazakhstan and sources of future productivity growth
Economic incentives in Kazakhstan have been radically reshaped since the Soviet era ended in 1991. In the first phase of transition, the economy and agricultural sectors declined by 40-50%. Overall economic growth refused ...
Impact of Mexican germplasm on Brazilian wheat cropping: an ex-post economic analysis
This paper reviews and analyzes economic returns to wheat research in Brazil's main wheat-producing regions in Rio Grande do SuI and Paranci. Between 1975 and 1991, the area planted to wheat in Brazil increased significantly ...