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Among the network of International Research Centers, CIAT is responsible for collecting and preserving the world's bean germplasm of the genus Phaseolus (P. vulgaris, P. acutifolius, P. lunatus, P. coccineus, and P. polyanthus). The catalog includes 785 new accessions of P. coccineus, P. polyanth...
Dentro del sistema de Centros Internacionales de Investigacion, CIAT tiene la responsabilidad mundial de la recoleccion y conservacion de germoplasma de frijol del genero Phaseolus (P. vulgaris, P. acutifolius, P. lunatus, P. coccineus y P. polyanthus). El catalogo incluye 785 nuevas accesiones d...
The introduction of desirable agronomic characteristics into Phaseolus vulgaris L. is being attempted by interspecific hybridization with P. coccineus, but the effects on root nodulation are unknown. Accordingly, cross-inoculation relationships between P. vulgaris ‘Red Kidney’ and P. coccineus ‘S...
A study was initiated to determine the barriers that limit the transferences of genes between Phaseolus vulgaris and P. coccineus. The factors that determine the outcome of this crossing are the direction (success is greater when P. vulgaris is used as the mother parent) and the combination of pa...
Eighty-nine samples of Phaseolus germplasm were collected during a three-week exploration in the eastern slopes of the Bolivian Andes. Of particular interest are: 12 samples of lima bean, 4 samples of wild P. vulgaris and 64 samples of common bean landraces. Some problems related to the origin of...
Sister species of the common bean (Phaseolus vulgaris L.) are an attractive genetic resource to broaden the genetic base of this crop, especially for adaptation to extreme environments. The runner bean (Phaseolus coccineus) in particular, has been shown to contribute to disease resistance and tol...
The status of the Phaseolus collection held at the CIAT Genetic Resources Unit and the results of germplasm explorations in 1985 are presented in table form. Future plans include collection activities through expeditions in the Andean region. (CIAT)
Se presentan en forma de cuadro el estado de la coleccion de Phaseolus de la Unidad de Recursos Geneticos del CIAT y los resultados de las exploraciones para germoplasma realizadas en 1985. Los planes futuros incluyen actividades de recoleccion a traves de expediciones en la region Andina. (CIAT)
During 1984 several types of interspecific crosses between Phaseolus vulgaris and P. coccineus, generated in the collaborative project with the U. of Gembloux, Belgium, were tested to evaluate their yield potential. Significant differences were observed between the crosses tested and among sister...
Durante 1984 se estudiaron varios tipos de cruzamientos interespecificos entre Phaseolus vulgaris y P. coccineus generados en el proyecto colaborativo con la U. de Gembloux, Belgica, para evaluar su potencial de rendimiento. Se observaron diferencias significativas entre los cruzamientos evaluado...
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