Now showing items 1-10 of 20
Bridges to prosperity: food security, the environment, and peace for Central America
(CIAT; SDC; CIP; CIMMYT, 2000)
We are building bridges to prosperity for the small-scale, subsistence farmers who produce basic food crops in Central America. Our vision is to reduce poverty and environmental degradation and promote peace. We are a group ...
Maize production environments revisited: A GIS-based approach
This publication presents a GIS-based approach for revising the descriptions of global maize production environments, called "mega-environments" (MEs), used by CIMMYT and its partners. A cluster analysis was performed on ...
El análisis AMMI y la gráfica del biplot en SAS
En este documento se presentan tres ejemplos de casos en los que se emplearon programas creados en SAS para obtener Modelos AMMI, asi como la prueba de Gollob (Gollob, 1967) para determinar la significancia de cada termino ...
A multi-trait multi-environment QTL mixed model with an application to drought and nitrogen stress trials in maize ( Zea mays L.)
Despite QTL mapping being a routine procedure in plant breeding, approaches that fully exploit data from multi-trait multi-environment (MTME) trials are limited. Mixed models have been proposed both for multi-trait QTL ...
User's guide for spatial analysis of field variety trials using ASREML
This manual describes an approach to the spatial analysis of field experiments based on the software package AS residual maximum likelihood (ASREML; Gilmour et al. 1999). It describes common sources of spatial variation ...
The AMMI analysis and graphing the biplot
Diseños experimentales con testigos repetidos
(Colegio de Postgraduados, 2005)
In some stages of the breeding of crops, breeders must select the most promising lines from a very large number of sets of new varieties. Selection is conducted via direct comparison of new varieties that are tested within ...
Herencia del vigor de plántula y su relación con caracteres de planta adulta en líneas endogámicas de maíz tropical
(Colegio de Postgraduados, 2007)
In plant breeding programs seed and seedling vigor are important to assure germination, emergence and initial development of the plant. This study was conducted to determine inheritance type of traits related to maize ...
Caracterización de razas cubanas de maíz (Zea mays l.) Mediante marcadores agromorfológicos en la colección nacional del cultivo
(Ediciones INCA, 2009)
Cuban maize (Zea mays L.) races constitute a potential of high genetic value for Cuba and the Caribbean region. This work was aimed at characterizing Cuban races by means of agro-morphological markers in the national crop ...