Line x tester analysis for combining ability in Indian mustard [Brassica juncea (L.) Czern & Coss]
Authors
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Ramesh Kumar
Department of Genetics and Plant Breeding, College of Agriculture, Ummedganj-Kota Agriculture University, Kota, Rajasthan, India
Author
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PKP Meena
2Department of Genetics and Plant Breeding, ARS, Ummedganj-Kota, Agriculture University, Kota, Rajasthan, India
Author
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Ruchi Bishnoi
Department of Genetics and Plant Breeding, College of Agriculture, Ummedganj-Kota Agriculture University, Kota, Rajasthan, India
Author
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Kamal Kumar Sharma
Department of Genetics and Plant Breeding, College of Agriculture, Ummedganj-Kota Agriculture University, Kota, Rajasthan, India
Author
Keywords:
General combining ability, Indian mustard, line x tester, specific combining abilityAbstract
Line × tester analysis was carried out to estimate combining ability of 36 hybrids developed by crossing 9 lines with 4
testers of Indian mustard. Estimates of GCA effects indicated that Kranti, RH-749, Pusa Mustard-30 and Pusa Mahak and
Tester, PM-27 were good general combiner. Significant SCA effects for seed yield per plant and other attributing traits in
desirable direction were recorded in a series of hybrids and a close association between SCA effects and heterosis was
observed amongst the best hybrids identified on the basis of SCA effects. The three hybrids; PM- 30 x CS 54, NRCHB
101 x PM 27, RH 749 x JM 1, IC-597889 x JM-1 and RH-30 x CS-54 exhibited highly significant SCA effects and higher per
se performance for seed yield and important traits. The high yielding cross combinations can be further exploited for
improving the seed yield by development superior genotypes.
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