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Intercropping of maize and beans is practiced widely throughout the tropical and subtropical regions of Latin America, particularly among small farmers with limited technical resources. This paper reviews how association affects the nitrogen (N) balance of legumes and nonlegumes, paying particula...


Saito, Siu Mui Tsai[The nitrogen relationships of maize/bean associations]The nitrogen relationships of maize/bean associations
Autor: Pena V., L.A.

The objectives and methodology used in the project on technology generation and transfer in production systems, currently being carried out in Potosi, Puerres, and Cordoba (Narino, Colombia), are described. On the basis of a survey, the most important aspects of the production systems used by the...

El proyecto generacion y transferencia de tecnologia en sistemas de produccion realiza sus actividades en los municipios de Potosi, Puerres y Cordoba (Narino, Colombia). Se describen los objetivos y la metodologia utilizada en el proyecto. Con base en la encuesta exploratoria se definieron los re...


Pena V., L.A.[Proyecto de generacion y transferencia de tecnologia en sistemas de produccion - Ipiales, Colombia: informe de progreso]Proyecto de generacion y transferencia de tecnologia en sistemas de produccion - Ipiales, Colombia: informe de progreso

The parasitic witchweed, Striga hermonthica (Del.) Benth, is the greatest biological constraint for cereal crop production by resource-poor farmers in sub-Saharan Africa. Maize, Zea mays L., is a widely grown cereal crop in this region (22 × 106 ha). Striga-resistant maize populations were produc...


Kim, S.K.Fajemisin, J.Thé, C.Adepoju, A.Kling, J.Badu-Apraku, B.Versteeg, M.Carsky, R.Lagoke, S.T.O.[Development of synthetic maize populations for resistance to Striga hermonthica]Development of synthetic maize populations for resistance to Striga hermonthica

Landraces of maize (Zea mays L.) are invaluable sources of genetic variability for improving agronomic traits, and they hold great promise in developing new maize varieties with enhanced resilience to stresses. Even though phenotypic characterization is an inexpensive approach for elucidating var...


Nelimor, C.Badu-Apraku, B.Nguetta, S.P.Tetteh, A.Y.García Oliveira, A.L.[Phenotypic characterization of maize landraces from Sahel and Coastal west Africa reveals marked diversity and potential for genetic improvement]Phenotypic characterization of maize landraces from Sahel and Coastal west Africa reveals marked diversity and potential for genetic improvement

Full-sib families derived from Pool 16 DT, a tropical maize ( Zea mays L.) population, were evaluated in the 1995/96 and 1997/98 dry seasons, using two sites each season in Côte d’Ivoire. In all sites, the crop was irrigated from planting to about 2 weeks before anthesis, irrigation was discontin...


Badu-Apraku, B.Fakorede, M.A.B.Menkir, A.Kamara, A.Dapaah, S.[Screening maize for drought tolerance in the Guinea savanna of West and Central Africa]Screening maize for drought tolerance in the Guinea savanna of West and Central Africa

Vitamin A Deficiency (VAD) is a major public health problem in Sub-Saharan Africa affecting 33 million preschool-age children. Enrichment of maize varieties with provitamin A could provide sustainable and affordable solution to VAD. This study was conducted to understand the extent of GEI effects...


Mengesha Abera, W.Menkir, A.Meseka, S.Bossey, B.Afolabi, A.Burgueno, J.Crossa, J.[Factor analysis to investigate genotype and genotype X environment interaction effects on pro-vitamin A content and yield in maize synthetics]Factor analysis to investigate genotype and genotype X environment interaction effects on pro-vitamin A content and yield in maize synthetics

North Carolina Design I (NCD I) progenies derived from Pool 16 DT, a white, dent, early maturing, drought-tolerant and streak resistant tropical maize (Zea mays L.) population, were evaluated in the 1995/96 and 1997/98 dry seasons, using two sites each season in Côte d'Ivoire. In all sites, the c...


Badu-Apraku, B.Fakorede, M.A.B.Menkir, A.Kamara, A.Adam, A.[Effects of droughtscreening methodology on genetic variances and covariances in Pool 16 DT maize population]Effects of droughtscreening methodology on genetic variances and covariances in Pool 16 DT maize population

The selection response of a complex maize population improved primarily for quantitative disease resistance to northern leaf blight (NLB) and secondarily for common rust resistance and agronomic phenotypes was investigated at the molecular genetic level. A tiered marker analysis with 151 simple s...


Wisser, RJMurray, SCKolkman, Judith M.Ceballos, H.Nelson, R.J.[Selection mapping of loci for quantitative disease resistance in a diverse maize population]Selection mapping of loci for quantitative disease resistance in a diverse maize population

The incorporation of livestock into alley farming systems, in which food or forage crops are grown between hedges of multipurpose trees that are regularly pruned for mulch and/or forage, has been studied for over 10 years in Africa. Prunings from leguminous trees such as Leucaena and gliricidia c...


Reynolds, L.Jabbar, M.A.[The role of alley farming in African livestock production]The role of alley farming in African livestock production
Rivera, M.Amézquita Collazos, Edgar[Evaluación del modelo de simulacion de crecimiento CERES aplicado a la variedad de maíz (Zea mays L.) Sikuani V-110 en suelos ácidos de sabanas]Evaluación del modelo de simulacion de crecimiento CERES aplicado a la variedad de maíz (Zea mays L.) Sikuani V-110 en suelos ácidos de sabanas

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