Experimental results and farmer surveys in a Mexican community indicate that farmers� seed selection practices protect the phenological integrity of their maize varieties as they define them, despite numerous factors contributing to genetic instability. Analysis of morphological and genetic...

El sector agropecuario ha desempe�ado siempre un papel fundamental en la econom�a argentina. En la segunda mitad del siglo XX, los productos de origen pampeano tuvieron un fuerte crecimiento gracias a la adopci�n masiva de nuevas tecnolog�as de comercializaci�n y producci�n. Estas...

Soil infertility is a major constraint to food production in the communal areas of Zimbabwe. Smallholders in the region recognize the problems of low soil fertility and have devised ways of coping with them. This study describes the use of farmers� taxonomies of themselves and their soils to...

This study records the use of hybrid maize seed and fertilizer by small-scale farmers in Malawi, as well as their opinions about these inputs, from 1989-90 through 1996-97. Its main purpose is to determine whether the principal constraint to smallholders� use of maize hybrids is the...

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 in 1996, and agriculture is likely to enter a recovery phase soon. The...

Panam� tiene una econom�a dual con unas pocas actividades altamente competitivas y otras que se desarrollaron gracias a pol�ticas de sustituci�n de importaciones. Estas pol�ticas influyeron sobre el sistema p�blico de investigaci�n. Durante 15 a�os, los objetivos m�s...

El objetivo de esta investigaci�n es determinar la perspectiva de la producci�n de trigo en la regi�n del Baj�o (Guanajuato, M�xico), como una zona estrat�gica para proveer la materia prima que requiere la industria molinera de la zona centro del pa�s. Se determin� el...

This is one of a series of seven in-depth country studies on maize production systems in Asia, funded by the International Maize and Wheat Improvement Center (CIMMYT) and the International Fund for Agricultural Development (IFAD). It is part of a project designed to promote sustainable...

This document contains the proceedings of an international conference on impact assessment research held in San Jose, Costa Rica, from 4-7 February 2002. Co-organized by the Economics Program of the International Maize and Wheat Improvement Center (CIMMYT) and the Standing Panel on Impact...