Abstract
An experiment was conducted to estimate the genetic parameters for different traits in soybean. The crop was sown during June, 2015 at Research cum Instructional Farm Department of Genetics and Plant Breeding, College of Agriculture, Indira Gandhi Krishi Viswavidyalaya, Raipur (C.G.). The experiment was laid out in RCBD with two replications. Heterosis for seed yield and associated traits. The mean are relative heterosis for seed yield per plant RSC-10-46 x JS-97-52 and RSC-10-46x JS-93-05. The highest significant negative heterosis over mid parent recorded by cross RSC-10-46 x JS-97-52. The heterobeltiosis mean are RSC-10-46 x JS-97-52 and RSC-10-46 x JS-93-05. The standard heterosis for seed yield per plant RSC-10-46 x JS-335 and RSC-10-04 x JS-97-52. The top most crosses exhibited significant negative standard heterosis. viz., RSC-10-46 x JS-335, RSC-10-17 x JS-93-05, RSC-10-30 x JS-93-05. Most of the yield and yield contributing characters showed considerable heterosis, hence their exploitation in the heterosis breeding will be useful. However, heterosis breeding is not practically exploited in crops like soybean.
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