GENETICS OF QUANTITATIVE CHARACTERS IN SUMMER MUNG BEAN (VIGNA RADIATA (L.) WILCZEK VAR. RADIATA)

Abstract

Yield in mung bean is a complex character and is dependent on its component characters like clusters/plant, pods/plant, seeds/pod and seed weight. Singh and Singh [1] reported nonadditive gene action for yield, pods/ plant, clusters/plants; and predominantly additive gene action for seed weight7 lJle experimental material consisting of 7 generations of two summer mung bean crosses, viz. MG 46xS'.M. No.1 and MG 28 X S. M. No.1 was sown in RBD with three replications, Both MG 46 and MG 28 are eady in maturity with good podding capacity, whereas'
S.M. No. 1 is late with lesser number of pods per plant. The gene effects were estimated by weighted analysis of generation means. The Cavalli's joint scaling test
[2] was significant for all the characters in both crosses, except for branches and pods/plant in cross MG 28 x S. M. No.1, indicating the inadequacy of additivedemonirtance model.