The hybrid P3 × P2 showed the highest di, dii and diii values (56.26, 48.57 and 66.54 per cent respectively) in L1 environment compared to all other hybrids in all the four environments tested. The hybrid P3 × P2 showed maximum diii (66.54 per cent) in L1 environment while compared among other hybrids across locations. The pooled analysis showed that highest di (43.5 per cent), dii (39.55 per cent) and diii (40.52 per cent) values were registered by P1 x P2. (Table 3).