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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
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 economic impact in developing countries of leaf rust resistance breeding in CIMMYT-related spring bread wheat
(CIMMYT, 2004)
This study was undertaken to estimate the economic impact of efforts since 1973 by the International Maize and Wheat Improvement Center (CIMMYT) to develop spring bread wheat varieties resistant to leaf rust caused by ...
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
Indicators of wheat genetic diversity and germplasm use in the people's republic of China
(CIMMYT, 1996)
A preliminary study of wheat genetic diversity in the People's Republic of China is presented. Available evidence and basic data related to the ancestry of leading wheat cultivars and the area distribution of dominant ...
Book
Wheat harvest technology in Punjab's rice wheat zone: combines, laborers and the cost of harvest delay
(PARC; CIMMYT, 1987)
Combine-users in Punjab's rice-wheat zone tend to be large owner operators who harvest a total of over 20 hectares in either wheat or rice. Although a slightly higher proportion combine rice, those who combine wheat ...
Book
Optimal search in ex situ collections of wheat genetic resources
(CIMMYT, 1998)
This paper develops a theoretical model for analyzing gene bank management decisions regarding the search for traits of economic value in ex situ collections of wheat. The model is applied to data on the probability of ...