Mostrando ítems 1-10 de 28
A regional analysis of maize biological diversity in Southeastern Guanajuato, Mexico
Four environments with contrasting potential for agricultural productivity and infrastructure development were identified in Guanajuato State, Mexico, to test hypotheses about the relationship of maize biological diversity ...
Social relations and seed transactions among smallscale maize farmers in the Central Valleys of Oaxaca, Mexico
This paper explores social arrangements associated with seed transactions among smallscale maize farmers in the Central Valleys of Oaxaca, Mexico, a centre of crop genetic diversity. A formal seed distribution system has ...
Adoption, management, and impact of hybrid maize seed in India
This paper presents results of a 1995 survey of 864 maize-growing households in six states that account for more than 70% of India's maize area: Andhra Pradesh, Bihar, Karnataka, Madhya Pradesh, Rajasthan, and Uttar Pradesh. ...
Public and private investments in maize research in Mexico and Guatemala
This paper describes the relationship between public and private sector research and seed production in Mexico and Guatemala. The focus is on public agricultural research institutes and local and multinational seed
Maize research, development, and seed production in India : contributions of the public and private sectors
This paper assesses the relative strengths and weaknesses of India's public and private maize seed industries and examines future options for maize seed industry policies. By 1992, nearly as many maize researchers worked ...
The private and public characteristics of maize land races and the area allocation decisions of farmers in a center of crop diversity
This study uses an approach derived from models of the private and public characteristics of goods to illustrate (1) the overriding importance of variety attributes in farmers' decisions to allocate area among varieties ...
Issues regarding targeting and adoption of quality protein maize (QPM)
Improvements in the production characteristics of quality protein maize (QPM) are currently leading to its reintroduction in various areas of the world, both for human and animal consumption. Although the improved QPM ...
Institutional change and discontinuities in farmers' use of hybrid maize seed and fertilizer in Malawi : findings from the 1996-97 CIMMYT/MoLD Survey
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 ...