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Schulte-Geldermann, Elmar[Tackling low potato yields in Eastern Africa: an overview of constraints and potential strategies.]Tackling low potato yields in Eastern Africa: an overview of constraints and potential strategies.

Gastelo, M.Díaz, L.Bonierbale, Merideth W.[Valor parental para el rendimiento bajo condiciones de altas temperaturas en clones de papa tolerantes al calor y resistentes al tizon tardio.]Valor parental para el rendimiento bajo condiciones de altas temperaturas en clones de papa tolerantes al calor y resistentes al tizon tardio.
Autor: Janssen, W.

Results from a survey on snap bean production, marketing, and consumption, carried out among the participants to the workshop on Snap Bean Improvement, held at CIAT (Colombia), coming from Argentina, Brazil, Peru, Ecuador, and Colombia, are presented. Although the area planted to snap beans in th...

Se presentan los resultados de una encuesta sobre produccion, mercadeo y consumo de habichuela realizada entre los participantes en el Taller de Mejoramiento de Habichuela realizado en CIAT (Colombia), provenientes de Argentina, Brasil, Peru, Ecuador, y Colombia. Aunque las areas sembradas de hab...


Janssen, W.[El cultivo de la habichuela en varios paises de America Latina]El cultivo de la habichuela en varios paises de America Latina
Howeler, Reinhardt H.[Técnicas efectivas de selección para buscar tolerancia a la toxicidad del aluminio]Técnicas efectivas de selección para buscar tolerancia a la toxicidad del aluminio
Autor: Yepes, A.

The objectives, criteria, and evaluation methods of the research projects carried out in Ecuador as part of the vegetable program are described. Projects include the evaluation of improved var.; selection of segregating lines; adaptation nurseries for advanced lines; yield tests of promising line...

Se describen los objetivos, criterios y metodos de evaluacion de los proyectos de investigacion realizados dentro del programa de hortalizas de Ecuador. Los proyectos incluyen la evaluacion de var. importadas, obtencion de var. mejoradas, seleccion de lineas segregantes, viveros de adaptacion de ...


Yepes, A.[Mejoramiento de habichuela en el Ecuador]Mejoramiento de habichuela en el Ecuador

Cassava is after maize an important subsidiary crop in Vietnam. The amount of production used for human consumption is now only about 10-20 percent, that for animal feed increased to about 30 percent, for industrial processing about 30-40 percent, while about 20 percent is used for other requirem...


Tran Ngoc NgoanHoang, KimKawano, Kazuo[Recent progress in cassava varietal improvement in Vietnam]Recent progress in cassava varietal improvement in Vietnam

Reviews a variety of research trials ranging from the improvement of germplasm materials to the development of fodder production systems, and concludes with a recommendation for more research and development attention on the integration of fodder trees within the existing farming systems. Include...


Atta-Krah, A.N.Sumberg, J.E.Reynolds, L.[Leguminous fodder trees in the farming system. An overview of research at the Humid Zone Programme of ILCA in southwestern Nigeria]Leguminous fodder trees in the farming system. An overview of research at the Humid Zone Programme of ILCA in southwestern Nigeria

A study conducted to determine the effect of intercropping cowpea on dry-matter and grain yield of millet in the semi-arid zone of Mali. Presents and discusses physical and chemical characteristics at various depths of loamy sand soil, planting density and plant population, number of millet and c...


Hulet, H.Gosseye, P.[Effect of intercropping cowpea on dry-matter and grain yield of millet in the semi-arid zone of Mali]Effect of intercropping cowpea on dry-matter and grain yield of millet in the semi-arid zone of Mali
Autor: Astatke, A.

In Ethiopia animal traction has been an integral part of agricultural production for centuries. Pairs of Oxen have been employed to pull an ard plough (`Maresha') for seedbed preparation. Implement development for primary and secondary cultivation was the main focus until the end of the 70s. Some...


Astatke, A.[Research on the draught animal power systems in Ethiopia]Research on the draught animal power systems in Ethiopia

Animal manure is of vital importance to soil-fertility maintenance in semi-arid West Africa due to its intrinsic value as a soil amendment and because of the low level of inorganic fertiliser use. This paper provides a regional overview of manure utilisation for food crop production. Results of e...


Williams, Timothy O.Powell, J.M.Fernández Rivera, S.[Manure utilisation, drought cycles and herd dynamics in the Sahel: implications for cropland productivity]Manure utilisation, drought cycles and herd dynamics in the Sahel: implications for cropland productivity

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