Flower color of hairy vetch (Vicia villosa Roth) was observed individually in F2 of crosses among violet, white, pinkflower varieties, and between pale pink and pink flower varieties for providing information of useful gene as source of coloredflower. F2 segregation mode of flower color between cross of white/violet was fitted to 3 violet : 1 white, and same segregationratio of 3 violet : 1 pink was found in F2 of cross of violet/pink flower variety. Also, F2 segregation of flower color betweencross of pale pink/pink flower variety was fitted to 3 violet : 1 white. When white flower was crossed with pink flower, flowercolor in F2 population segregated into 9 violet : 3 pink : 4 white. Based on the results, this study indicated that flower colorof parental varieties was controlled by recessive epistatic interactions of two genes, and pale pink flower color was recessiveto the pink color of the parental variety. This flower color inheritance may be used for practical application in breeding of hairyvetch variety.
