Photoperiod-temperature response
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- 24110
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Durante 1984 continuo la seleccion por fotoperiodo en CIAT- Palmira utilizando longitudes del dia de 18 h para retardar la floracion. Los materiales evaluados incluyeron lineas de varios EP y la coleccion de germoplasma; los resultados de esfuerzos de seleccion anteriores se han compilado en una lista de respuestas al fotoperiodo de aprox. 3000 materiales. Sin embargo, la fuerte interaccion entre la sensibilidad al fotoperiodo y la temp. ha complicado los intentos para predecir la respuesta optima al fotoperiodo en diferentes estaciones de crecimiento del frijol. Para clarificar este problema, se han hecho estudios retrospectivos, representacion de los resultados del IBYAN y uso de un vivero internacional de floracion y adaptacion (VIFA). (RA-CIAT)
Photoperiod screening has continued at CIAT-Palmira throughout 1984 using 18 h daylengths to delay flowering. Materials evaluated included lines from various EP and the germplasm collection and the results from previous screening efforts have been compiled into a list of photoperiod responses of over 3000 materials. However, the strong interaction between photoperiod sensitivity and temp. has complicated attempts to predict optimal photoperiod responses for different bean growing seasons. To clarify this problem, retrospective studies, modeling of IBYAN results, and use of an International Flowering and Adaptation Nursery (IFAN) have been made. (CIAT)