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The importance of appropriate genetic variability for plant breeding work in cassava is highlighted; genetic erosion has been slight and therefore efforts should be made to collect and maintain germplasm of both cultivated and wild species. It is necessary to carry out physiological studies aimin...

Se enfatiza la importancia de una variabilidad genetica apropiada para trabajos de fitomejoramiento en yuca; se piensa que la erosion genetica ha sido poca y, por tanto, se deben hacer esfuerzos de recolectar y mantener germoplasma de tanto especies cultivadas como silvestres. Es necesario realiz...

A general description is given of cassava. Data deal with geographical distribution, production, yields and nutritional value, varietal improvement, agronomic practices, diseases and pests. Research activities in cassava are also described. (CIAT)

Se presenta una descripcion general de la yuca. Los datos tratan distribucion geografica, produccion, rendimientos y valor nutricional, mejoramiento var., practicas agronomicas, enfermedades y plagas. Tambien se incluyen actividades de investigacion en yuca. (CIAT)

A detailed review on cassava production in intercropping systems is given, based on the following aspects: selection of plant types for intercropping; realtive planting time, planting density and pattern (spatial arrangement); mineral nutrition and fertilization, competition for nutrients; pest, ...

The study reported here monitored the introduction of an agroindustrial technology for processing the starchy roots of cassava for animal feed. CIAT transferred the technology from Thailand to Colombia, where groups of farmers began building drying plants under the guidance of the Colombian Gover...

En el presente estudio se hizo seguimiento a la introduccion de una tecnologia agroindustrial para el procesamiento de raices amilaceas de yuca para uso en alimento para animales. CIAT transfirio la tecnologia de Tailandia a Colombia, en donde grupos de agricultores empezaron a construir plantas ...

Research activities related to biotechnology in cassava are indicated. A solid basis has been worked out for a upcoming project of the molecular mapping of the cassava genome. A basic set of polymorphic markers from cassava genomic libraries has been selected; the generation of the linkage map us...

Se indican las actividades de investigacion relacionadas con biotecnologia en yuca. Existe una base solida para un proyecto futuro de elaboracion de mapas moleculares del genoma de yuca. Se ha seleccionado un grupo basico de marcadores polimorfos de bancos genomicos de yuca; el siguiente paso es ...

The strategies and projections of CIAT's cassava program for the period 1986-90 are described and analyzed in detail. Background information is given on the crop including its characteristics and end uses (fresh cassava for foodstuffs, both traditional and innovative dry cassava products). A comp...

Se describen y analizan en detalle las estrategias y proyecciones del programa de yuca del CIAT para el periodo 1986-90. Se hace un marco de presentacion del cultivo que incluye sus caracteristicas y sus usos finales (yuca fresca para alimentacion humana, productos de yuca seca tradicionales y ot...

Two expt. were carried out at CIAT-Palmira to assess maize//yam//cassava intercropping; species were planted alone or in double and triple combinations for a total of 11 treatments. Planting distances of 1.2 x 1.0 m, with furrows spaced at 1 m, were used for all 3 crops in monoculture as well as ...

En CIAT-Palmira se sembraron 2 expt. para evaluar el sistema de cultivo asociado maiz//name//yuca, en los que se sembraron las especies solas o en combinaciones dobles y triples para un total de 11 tratamientos. Se utilizaron distancias de siembra de 1.2 x 1.0 m en caballones espaciados a 1 m par...

The practice of treating cassava seed with chemicals was assessed on cassava growing farms in the departments of Cordoba, Sucre, Bolivar, and Atlantico (Colombia). On each farm the seed of cassava var. Venezolana was divided into 2 big lots: one of the lots was immersed in a solution of benomyl (...

En fincas de productores de yuca en los departamentos de Cordoba, Sucre, Bolivar y Atlantico (Colombia), se evaluo la practica de tratar la semilla de yuca con productos quimicos. En cada finca, la semilla de yuca var. Venezolana se dividio en 2 grandes lotes: uno de los lotes se sumergio en una ...

A multisite trial (6 sites) was carried out to determine the optimum plant populations for one of the most important cropping systems used in the Lorica district (Cordoba, Colombia): maize associated with yam and intercropped with cassava. Plant populations of 1.2 x 1.0, 1.2 x 1.3, and 1.2 x 1.6 ...

Se realizo un ensayo multilocalizado (6 sitios) para determinar la densidad de poblacion optima del arreglo maiz asociado con name e intercalado con yuca, uno de los mas importantes en el Distrito de Lorica (Cordoba, Colombia). Se utilizaron densidades de poblacion de 1.2 x 1.0, 1.2 x 1.3 y 1.2 x...

The main results of research on different intercropping systems, including tobacco//cassava and yam x maize//cassava, are detailed. When cassava is intercropped with tobacco, tobacco yields are reduced by 24.3 percent but quality characteristics of leaves and no. of leaves/plant/harvest are not a...

Se detallan los principales resultados de investigacion sobre diferentes sistemas de cultivo intercalado, entre ellos tabaco//yuca y name x maiz//yuca. Cuando la yuca se intercala con tabaco, los rendimientos del tabaco se reducen en 24.3 por ciento pero no se afectan sus caracteristicas de calid...