Mostrando ítems 1-10 de 254
Techniques for efficient mass rearing and infestation in screening for host plant resistance to corn earworm, Heliothis zea
One of a three-part series, this bulletin presents techniques developed at CIMMYT and used over the past six years for efficient mass rearing and infestation with the corn earworm-Heliothis zea (Boddie)-for screening and ...
Impact pathways of trade liberalization on rural livelihoods: A case study of smallholder maize farmers in Mexico
Research assessing the impacts of trade liberalization on poor rural populations can be divided into two categories: more quantitative research, assessing relationships between specific, measurable variables (such as changes ...
Policy reforms and mexican agriculture : views from the Yaqui Valley
The overall effects of policy reforms enacted during the 1990s in Mexico on financial and economic profitability ofYaqui Valley agriculture are assessed in this study, which describes the reforms, examines how exogenous ...
Diez años con el TLCAN : revisión de literatura y análisis de las respuestas de los agricultores de Sonora y Veracruz, México
(CIMMYT; Congressional Hunger Center, 2007)
La adopción de la labranza de conservación en un sistema de cultivo en ladera en Motozintla, Chiapas
Una encuesta realizada en 1994 entre 82 productores que cultivan maiz en las laderas empinadas de Motozintla, Chiapas, proporciono informacion sobre las practicas de cultivo, incluida la adopcion de la labranza de conservacion; ...
Conservation agriculture, increased organic carbon in the top-soil macro-aggregates and reduced soil CO2 emissions
Background and aims: Conservation agriculture, the combination of minimal soil movement (zero or reduced tillage), crop residue retention and crop rotation, might have the potential to increase soil organic C content and ...
Indirect selection for grain yield in spring bread wheat in diverse nurseries worldwide using parameters locally determined in north-west Mexico
The relationships of normalized water index three (NWI-3) and canopy temperature (CT) with grain yield in north-west Mexico were determined in a set of wheat lines planted in multi-location yield trials. Advanced wheat ...