The inheritance pattern of flower colour in underutilized tuberous legume crop yam bean was studies by utilizing a white flower colour line (YBWF1) and two purple flower colour lines (RM-1 and L No-3). The F1 and F2 population along with parental lines were evaluated to study the inheritance pattern of the flower colour. All the F1 hybrids showed purple colour in both the crosses and in the F2 segregation generation, the observed distribution of the flower colour fitted the expected Mendalian ratio of 3 (Purple flower colour):1 (white flower colour). The segregation of flower colour suggested monogenic dominant control of purple flower colour in yam bean using white flower colour genotype YBWF-1. This is the first report of flower colour inheritance pattern in yam bean. | Inheritance of flower colour of underutilized tuberous legume crop yam bean Pachyrhizus erosus L. Urban
