GENE EFFECTS IN FOUR METRIC TRAITS OF RICE BEAN

Abstract

Scaling tests and analysis of genic and interaction components of four metric traits were carried out in the progeny of three crosses involving four strains of rice hean (l'igus umbe/hlla Thunb). Ohwi and Ohashi). Scaling tests A and C were significant for days to flower and greeh forage yield in two crosses. Additive gene effects were predominant for days to flower and plant height, whereas dominance effects were of ml\ior importance for nunther of branches per plant and green forage yield. Duplicate type genic interaction was noted for green forage yield. It is suggested that the significant dominance and interaction components can he exploited through the development of composite varieties in rice bean utilizing its very high rate of natural outcrossing.