Department of Plant Breeding, Haryana Agricultural University, Hissar-125 004
The present study on 8 × 8 diallel cross of urdbean [Vigna mungo (L.) Hepper] revealed preponderance of additive genetic variance for all the characters, except grain yield in which dominance variance was found to be high. Parents ‘Pant U30’, ‘UPU-2’ and ‘H 76–12’ were found to be good general combiners for yield and its components. The parents with high mean values for all traits except yield may be chosen for effective improvement. The best specific combinations for yield and its components were ‘H 76–12 × UPU-2’ and ‘H 76–12 × G8’. High × high g.c.a. parents resulted crosses with high s.c.a. effects. The crosses ‘H 70–3 × H 76-12’, ‘Pant U 26 × Pant U 30’ and ‘H 76–12 × G8’ may provide potential breeding material.
