Author(s):

SB Chavan, DK Patil and VS Pawar

Abstract: The present study on was conducted during Kharif 2017 heterosis in respect of following characters viz. days to 50% flowering, days to maturity, plant height (cm), number of clusters per plant, number of pods per cluster, number of pods per plant, number of seeds per pod, 100 seed weight (g), pod length (cm), seed yield per plant (g) and protein per cent, involving four lines and five testers and their 20 hybrid combinations with one standard check. The experiment comprised of four female and five male parents and their 20 F₁s hybrid was conducted in randomized block design with two replications. Mean data of genotypes was analyzed as per line x tester mating design while mean data of 30 genotypes (including check and promising hybrids) was used for the estimation of heterosis. The significant heterosis for yield and yield component has been observed in number of pod per plant was recorded by F₁ cross BM 2002-1 x SML 668. While the crosses, BPMR 145 x SML 832 and BM 4 x BWUC 8-1-1 showed high percentage of heterosis for number of cluster per plant, number of pods per cluster and number of pods per plant. Useful heterosis in desirable direction was recorded in all characters except days to 50% flowering and days to maturity. The highest use full heterosis was observed in BPMR 145 x BWUC1-1-1 for number of cluster per plant. The best cross combination BPMR 145 x SML 832 was identified on the basis of mean performance heterosis and estimation of GCA and SCA effects. BPMR 145 x BWUC 10-1-1-2-1 was the best heterotic (201%) cross.

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