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Working Paper
Sources of growth in wheat yields in Pakistan's Punjab, 1965-2000: is there a sustainability issue?
(CIMMYT, 1990)
Wheat yields rose rapidly in the Punjab of Pakistan during the Green Revolution decade, 1966-76, but the rate of growth has been significantly slower in the decade that followed. Official statistics indicate that the yield ...
Book
A conceptual framework for valuing on-farm genetic resources
(CIMMYT, 1998)
This paper proposes a preliminary conceptual framework designed to support strategic decisions about which crop populations-in a well-defined reference area within a crop's center of diversity-are suitable candidates for ...
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
Cereal crop productivity in developing countries: past trends and future prospects
(CIMMYT, 1999)
This paper synthesizes the evidence on cereal crop poductivity in developing countries over the past 30 years and looks at future prospects for productivity in growth. For more than three decades we have witnessed the ...
Book
Maize production and agricultural policies in Central America and Mexico
(CIMMYT, 1999)
This paper reviews trends in maize production and consumption in Central America and Mexico in the context of the political and economic changes taking place in the region since the 1970's. The authors focus on the effects ...
Working Paper
Adoption and use of improved maize by small-scale farmers in Southeast Guatemala
(CIMMYT, 1999)
This report is based on a study of the adoption and use of improved open-pollinated varieties and hybrids by small-scale farmers in the Department of Jutiapa, Guatemala. The majority of maize producers in Guatemala are ...
Book
Adoption of maize conservation tillage in Azuero, Panama
(CIMMYT, 1999)
An aggressive research and validation program launched in 1984 in Azuero, Panama, yielded a recommendation advocating zero tillage for maize production. Ten years later, maize farmers in Azuero use , land preparation ...
Book
International collaboration in crop improvement research: current status and future prospects
(CIMMYT, 1999)
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 ...
Book
Technical change in maize production: a global perspective
(CIMMYT, 1994)
The stages of technological change in maize production in commercial and small-scale semisubsistence systems are discussed and variation in the use of improved varieties/hybrids and adoption of associated inputs are noted. ...
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 ...