Study of Heterosis for Grain Yield and its Components Traits in Single Cross Derivatives of Maize (Zea mays L.)

The 45 F1 hybrids obtained by crossing in line x tester fashion were evaluated in three different environments along with parents and checks for grain yield traits and its component to harness the heterotic information over better parent and standard check. the number of hybrids depicted significant positive heterobeltiosis and relative heterosis on pooled basis were 38 and 40 respectively, for grain yield per plant. The estimates of standard heterosis for grain yield and its attributing traits showed that hybrid L14×T3 exhibited maximum estimates of significant positive standard heterosis suggesting that hybrid may be exploited before commercial release for confirmation of its superiority.