Heterosis and Inbreeding Depression for Yield and Yield Attributing Traits of Maize (Zea mays L.)

In present Investigation 45 single cross hybrids were evaluated along with their parental lines and checks heterosis and inbreeding depression. The standard heterosis, the hybrid combinations DI- 123 x DI- 111(91.11), DI- 121 x DI- 117 (80.82), DI- 121 x DI- 111(80.33), DI- 121 x D- 56 (78.33), DI- 123 x DI- 117 (74.10), DI- 122 x D- 52(70.23), DI- 121 x D- 52 (67.04) and DI- 117 x D- 56 (62.24) were identified as best for grain yield per plant (g) and some of the yield contributing traits. Maximum inbreeding depression was obtained from DI- 111 x DI- 118 (61.50) for grain yield per plant (g).