Association studies among yield and its attributing traitsin coloured sorghum [Sorghum bicolor (L.) Moench]

Abstract

The experiment was carried out at College of Agriculture Raichur, during rabi 2020 in augmented design to findout the correlation and path analysis in 120 coloured sorghum genotypes. Characters viz., panicle weight, 100 grain weightand panicle width showed significant positive correlation with grain yield at phenotypic level. Panicle weight, 100 grainweight and panicle length were negatively correlated with peduncle length at genotypic level. Among these traits panicleweight (r =0.760 and 0.829) showed high magnitude of positive association at both level with grain yield compared to othertraits. Path analysis revealed positive direct effects of panicle weight, 100 grain weight, panicle width, peduncle length andplant height on grain yield per plant at phenotypic level. Panicle length, panicle weight and 100 grain weight and neck ofpanicle showed positive direct effects on grain yield at genotypic level. Selection for these traits would be effective inimproving the grain yield