Heterosis Studies in Sorghum

The present investigation entitled “Studies on new male sterile lines and restorers in rabi sorghum” was undertaken to assess the per se performance of parents, to estimate the amount of heterosis for yield and yield components, to estimate the combining ability and fertility restoration and to identify heterotic combinations for further study. Significant heterosis has been recorded for yield and yield components in most of the crosses. The hybrid ms-104A×AKR-354 recorded highest heterosis and heterobeltiosis for grain yield and also exhibited significant heterosis except leaf area. For grain yield, the hybrid 104A×AKR-354 was followed by ms-104A×AKR-388-1, ms-104A×AKR-368 and AKRMS-69×AKR-388-1.