Vol. 12, Issue 9 (2023)

Author(s):
Rukhsar Bamji, Bharat Davda, Ketan Kanjariya and Krina Patel

Abstract:
The present investigation was conducted at Main Sorghum Research Station, NAU, Surat. The study involved two CMS lines having same cytoplasmic source i.e., A₁ (milo) used as female and crossed with seventy diverse male parental lines during late kharif 2021. Out of seventy, fifty male parents which produced hybrid seeds with both the CMS lines were selected for further assessment. Total of sixty three F₁ hybrids from both the CMS lines were evaluated further during kharif 2022. The per se performance and heterosis was estimated for various yield attributing traits viz., days to 50 percent flowering, days to maturity, plant height (cm), panicle length (cm), 1000 seed weight (g), grain yield per plant (g) and dry fodder yield per plant (g). The wide range of mean values for per se performance was reported among the cross combinations. From the overall results, it was observed that mean values of hybrids with 28A were higher as compared to 296A female line. The mean values of crosses 296A × NSG-49 (52.04 g), 296A × NSG-41 (50.20 g), 296A × NSG-39 (49.68 g), 296A × NSG-22 (49.16 g); 28A × NSG-22 (53.56 g), 28A × NSG-173 (52.48 g), 28A × NSG-196 (50.88 g) and NSG-198 (48.34 g) were found higher for grain yield per plant. The magnitude of heterosis over mid and better parent was found to be higher for hybrids with 296A as compared to 28A for most of the characters studied. The F₁s 296A × NSG-39, 296A × NSG-41, 296A × NSG-49, 296A × NSG-199; 28A × NSG-85, 28A × NSG-173, 28A × NSG-195, 28A × NSG-196, 28A × NSG-198 and 28A × NSG-199 registered highest desirable relative heterosis and heterobeltiosis for almost all the characters studied.