Inheritance of growth habit and leaf-shape in mungbean [Vigna radiata (L.) Wilczek.]

摘要

Growth habit and shape of leaflets in trifoliate leaves are two important morphological traits in mungbean. Despite the usefulness of these two traits as genetic marker, not much work in the study of inheritance o these two characters has been done.Narrow genetic variation of these two traits and poor adaptability in common cultivars of mungbean are prime difficulties in this study. A wild species and progenitor of mungbean Vigna radiata var. sublobata with different growth habit and leaflet shapewith good adaptability was collected from northern hilly tracts (Darjeeling district) of west Bengal. The collected plants though were uniform growth habit showed considerable gradation in leaflet lobation pattern. According to this gradation, plants werecategorized as entire to very sharply lobed. They were numbered as sub 1 to sub 17. The present study was undertaken to investigate the inheritance pattern of this leaflet character alone with growth habit and detection of linkage between them, if any