Se llevó a cabo un sondeo en la región de La Fraylesca en el estado de Chiapas en abril de 1992. El objeto de éste fue identificar o confirmar las principales causas de la degradación de los recursos naturales, determinar ...

Este documento examina las tendencias de la producción de maíz de temporal en México en los últimos decenios y la experiencia del INIFAP / OMMYT/ ORAD en la investigación en fincas (IEF) en las tierras bajas tropicales de ...

This report examines maize research in the developing world, focusing primarily on crop breeding by the public sector (national research programs and international agricultural research centers). Based on a survey of ...

This paper reviews trends in rainfed maize production in Mexico over the past several decades, and the experience of lNIFAP/ CIMMYT/ CIRAD on-farm research (OFR) in Mexico's lowland tropics, to evaluate the prospects for ...

An economic surplus approach is used to analyze economic returns to wheat research (primarily breeding) in Nepal. During the past 30 years, investment in wheat research has generated an internal rate of return ranging from ...

Major changes in the wheat economy of Punjab State, India, since the Widespread adoption of modern varieties (MVs) in the early 1970s, are summarized from an analysis of trends in micro-level farm data and by using an index ...