Vol. 17 No. 3
Interpretation of mean value and extent of heterosis in fodder and grain yield with associated traits of sorghum [Sorghum bicolor (L.) Moench]
Author(s): A.H. JOSHI, R.A. GAMI, R.N. PATEL AND ARVINTH S.
Abstract: The study was undertaken to reveal mean and percent heterosis level in sorghum [Sorghum bicolor (L.) Moench]. The 28 (F1) hybrids generated using seven females as a line and four males as a tester through L × T fashion. An examination of mean data of parents with (F1) hybrids for different yield and associated traits revealed that GJ 43 amongst females and SPV 2573 amongst males, while SR 3019 × SPV 2573, SR 2980 × CSV 31 and SR 3019 × CSV 17 amongst hybrids exhibited higher mean value for grain yield plant-1 with some of its associated traits. Looking to dry fodder yield plant-1, the female DSF 168, the male SPV 2682 and crosses DS 156 × SPV 2682, DS 156 × CSV 31 and SR 3048 × CSV 31 recorded higher dry fodder yield plant-1. The significant heterobeltiosis and standard heterosis was perceived in many hybrids for different components traits. The F1 hybrids, SR 2980 × CSV 31 (40.38 & 50.61 %), DSF 168 × CSV 31 (28.66 and 28.66 %) and SR 3019 × SPV 2573 (28.34 and 55.48 %) manifested significant and positive heterosis over better parent and the standard check CSV 31 for grain yield plant-1. While SR 2980 × SPV 2682, SR 3048 × CSV 31 and SR 2980 × CSV 31 registered highly significant and positive heterotic effects in terms of heterobeltiosis (i.e., 46.13, 31.24 and 30.87 %), standard heterosis over check GJ 43 (i.e., 28.28, 34.52 and 14.27 %) and CSV 31 (i.e., 85.68, 94.71 and 65.40 %) for dry fodder yield plant-1, respectively. These crosses were also given best per se performance, hence hold promising for commercial exploitation.
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