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handle: 10261/162917
[ES] Se realizaron cruzamientos entre plantas pertenecientes a siete poblaciones de Phaseolus coccineus del Norte de España y ocho líneas puras de Phaseolus vulgaris para obtener híbridos mediante la técnica del "rescate de embriones". Se aplicaron diferentes tratamientos a las flores maternas (P. coccineus) para aumentar el número de vainas viables que pudieran ser rescatadas. Los mejores resultados se observaron cuando el cruzamiento se realizaba antes de las 12 h de la mañana, la temperatura durante el cruzamiento no superaba los 24ºC y era inferior a 35“C durante las 24 horas siguientes. El tratamiento más satisfactorio por eficacia, tiempo de ejecución y economía fue la aplicación de sacarosa (4%) al estigma de la flor materna.
[EN] To obtain hybrids through "embryo rescue" technique, crosses were made among plants from seven populations of Phaseolus coccineus from the North of Spain and eight pure lines of Phaseolus vulgaris. To increase the number of viable pods adequate to be rescue, different treatments were given to the female flowers (P. coccineus). The best results were observed when the cross was made before 12 P.M., the temperature during the cross was below 24°C and to 35"C twenty four hours afterwards. The most satisfactory treatment was the application of sucrose (4%) to the stigma of the female flower for its effectiveness, time economy and low cost.
Comunicación presentada en las X Jornadas de selección y mejora de plantas hortícolas, celebradas en Vitoria entre el 24 y el 26 de septiembre de 1996.- 6 páginas y 3 tablas.
Peer reviewed
Híbridos, Rescate de embriones, Phaseolus vulgaris L., Hybrids, Phaseolus coccineus, Embryo rescue
Híbridos, Rescate de embriones, Phaseolus vulgaris L., Hybrids, Phaseolus coccineus, Embryo rescue
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