Abstract
Estimation of heterosis for yield and yield attributing components in maize was carried out involving 45 crosses developed by including 15 lines, 3 testers along with 3 checks and sown in a Randomized Block Design with three replications. The phenomenon of heterosis was of general occurrence for most of the characters under study. Crosses L9 x T1 and L9 x T2 elucidated desirable and significant heterosis both over mid parent and better parent. Line L6, L7 and tester T1 proved out to be the best general combiner for maturity traits. Crosses, L5 x T3 and L6 x T2 were good specific combiner for maturity traits. Line L6, L2 and tester T3 were good general combiners and among the crosses L10 x T1 and L5 x T3 proved, the best specific combiners for plant height. The superior crosses and lines can be used in future breeding programmes to develop synthetic/hybrid varieties.
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