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Mostrando ítems 1-10 de 19
Book
Determinants of adoption and spatial diversity of wheat varieties on household farms in Turkey
(CIMMYT, 2012)
The Heckman two-stage estimation procedure was used to investigate factors influencing the adoption of modern and/or landrace wheat varieties and spatial diversity of wheat varieties in Turkey. In the first stage, the ...
Book
Adoption of improved wheat technologies in Adaba and Dodola Woredas of the Bale highlands, Ethiopia
(EARO; CIMMYT, 2000)
This study assessed farmers' current wheat management practices, determined the technical and socioeconomic factors affecting the adoption of wheat technologies, and drew implications for research, extension, and policy. ...
Book
Adoption of improved bread wheat varieties and inorganic fertilizer by small-scale farmers in Yelmana Densa and Farta Districts of Northwestern Ethiopia
(CIMMYT; Agricultural Research Organization (EARO), 2001)
A study was initiated in Yelmana Densa and Farta Districts of northwestern Ethiopia to assess the adoption of improved wheat varieties and inorganic fertilizer, factors affecting adoption, and ways in which research, ...
Book
Using economics to explain spatial diversity in a wheat crop: examples from Australia and China
(CIMMYT, 1999)
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. ...
Book
Farmers' wheat seed sources and seed management in Chilalo Awraja, Ethiopia
(CIMMYT; IARC, 1998)
This study describes the Ethiopian wheat seed system, identifies how farmers acquire and exchange wheat seed, explores problems related to farmers' acquisition and transfer of wheat seed, documents the status of previously ...
Book
The adoption of bed planting of wheat in the Yaqui Valley, Sonora, Mexico
(CIMMYT, 1998)
This report presents results of the analysis of data from a survey conducted during the fall-winter 1993/94 crop cycle in the Yaqui Valley of northwestern Mexico. It describes the agronomic characters of wheat producers ...
Book
Sources of productivity growth in wheat: A review of recent performance and medium-to long-term prospects
(CIMMYT, 1999)
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 ...
Book
The contribution of genetic resources and diversity to wheat productivity: a case from the Punjab of Pakistan
(CIMMYT, 1997)
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 ...
Book
Understanding global trends in the use of wheat diversity and international flows of wheat genetic resources
(CIMMYT, 1996)
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 ...
Book
Farmers' seed sources and management of bread wheat in Wolmera Woreda, Ethiopia
(IAR; CIMMYT, 1998)
Because seed supply and cost strongly influence farmers' ability to increase wheat production, researchers undertook a survey to document how Ethiopian farmers in Wolmera woreda acquire, manage and transfer wheat seed. ...