Crossing incompatibility in some bean cultivars utilized in Brazil
VIEIRA, A.L.
Crossing incompatibility in some bean cultivars utilized in Brazil - 12(1):169-171
En cruzamientos de cv. de frijol de semilla grande con otros de semilla pequena, se observo desarrollo anormal de las plantas hibridas y cero produccion de semillas. Esta barrera aparente limita el flujo espontaneo de genes entre diferentes cv. En un cruzamiento dialelico con 11 cv., 12 de los 55 hibridos obtenidos (21.8 por ciento) resultaron incompatibles. Se presentan los posibles genotipos de los cv. involucrados para ayudar a los mejoradores a cruzar solo los materiales compatibles. (RA-CIAT) In crosses involving common bean cultivars (Phaseolus vulgaris L.) that produce large seed with others that produce small seeds, abnormal development of the hybrid plants has been observed, and no seeds are produced. This apparent barrier limits the spontaneous flow of genes through different cultivars. In a diallel cross involving 11 cultivars, 12 of the 55 hybrids obtained (21.8 percent) were incompatible. The probable genotypes of the cultivars involved are presented in this paper to enable breeders to cross only compatible materials. (AS)
Phaseolus vulgaris
Cultivars
COMPATIBILITY
Plant breeding
Crossbreeding
Brazil
South America
Phaseolus vulgaris
Cultivares
COMPATIBILIDAD
Fitomejoramiento
Cruzamiento
Brasil
Frijol Beans Journal articles ArtÃculos en revistas Journal article
36333
Crossing incompatibility in some bean cultivars utilized in Brazil - 12(1):169-171
En cruzamientos de cv. de frijol de semilla grande con otros de semilla pequena, se observo desarrollo anormal de las plantas hibridas y cero produccion de semillas. Esta barrera aparente limita el flujo espontaneo de genes entre diferentes cv. En un cruzamiento dialelico con 11 cv., 12 de los 55 hibridos obtenidos (21.8 por ciento) resultaron incompatibles. Se presentan los posibles genotipos de los cv. involucrados para ayudar a los mejoradores a cruzar solo los materiales compatibles. (RA-CIAT) In crosses involving common bean cultivars (Phaseolus vulgaris L.) that produce large seed with others that produce small seeds, abnormal development of the hybrid plants has been observed, and no seeds are produced. This apparent barrier limits the spontaneous flow of genes through different cultivars. In a diallel cross involving 11 cultivars, 12 of the 55 hybrids obtained (21.8 percent) were incompatible. The probable genotypes of the cultivars involved are presented in this paper to enable breeders to cross only compatible materials. (AS)
Phaseolus vulgaris
Cultivars
COMPATIBILITY
Plant breeding
Crossbreeding
Brazil
South America
Phaseolus vulgaris
Cultivares
COMPATIBILIDAD
Fitomejoramiento
Cruzamiento
Brasil
Frijol Beans Journal articles ArtÃculos en revistas Journal article
36333