PJB-2022-253
Combining Ability and Heterosis Analysis for Seed Yield Related Traits in Brassica Napus
Noreen Fatima
Abstract
Brassica napus L. is important oilseed crop, having higher oil contents (40%) with low contents of glucosinolate and erucic acid, make it perfect for edible purpose. Ten Brassica napus L. genotypes were crossed in a Line × tester mating design. Seven high yielding female lines were crossed with 3 low yielding testers. The 21 F1’s along with parents were evaluated in Randomized Complete Block Design with three repetitions in the field of Department of Plant Breeding and genetics, UAF. The characters, Plant height, days to flower initiation, days to 50% flowering, number of primary branches, number of secondary branches, number of siliques per plant, siliqua length, number of siliques per plant, hundred seed weight, yield per plant, oil content and protein content were studied. Results of the experiment revealed that Duncled was good general combiner for the most of the characters. Among crosses, ZN-M-9 × ZMR-3 and Shiralee × ZN-R-1 were found good specific combiner. Genotypes with good general combining ability can be selected for future breeding program.
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