International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 1
First page : (219) Last page : (224)
Article doi: http://dx.doi.org/10.18782/2320-7051.4080

Analysis of Yield and Its Components Based on Heterosis and Combining Ability in Indian Mustard (Brassica juncea L. Czern & Coss.)

T. M. Shrimali, R. M. Chauhan, K. P. Prajapati*, S. A. Desai, J. R. Patel, P. T. Patel, P. J. Patel,
and Bharat K. Chaudhary
Department of Genetics and Plant Breeding, C. P. College of Agriculture,
S.D. Agricultural University, Sardarkrushinagar – 385506 (Gujarat)
*Corresponding Author E-mail: kpp1960@gmail.com
Received: 17.06.2017  |  Revised: 28.07.2017   |  Accepted: 3.08.2017  

 ABSTRACT

A study of diallel analysis excluding reciprocal crossesof ten parents were carried out to identify high heterotic crosses and their relationship in terms of general (GCA) and specific combining ability (SCA) in Indian mustard. The genotypes for study have been taken on the basis of their differences in plant height, number of branches per plant, number of siliquae per plant, days to flowering, days to maturity, seed yield per plant, harvest index, test weight, oil content and fatty acid composition. ANOVA study of GCA and SCA variances for all the characters were significant. The ratio of GCA and SCA variances were below unity for all the characters, except days to flowering and plant height, which indicates that all the traits inherited with dominant effects except these two characters. The parents GM 3, GDM 4, RH 0555 and RSK 29 were good general combiners for seed yield and its component characters. For quality components, parents RGN 303 and RSK 29 were found to be good general combiners for oil content. Similarly, GM 3 and RGN 282 for oleic acid, SKM 518 and SKM 904 for linoleic acid, SKM 904 and RH 0555 for linolenic acid and GM 3 and RGN 282 for erucic acid were found good general combiners. On the basis of per se performance, heterosis and combining ability effects for seed yield per plant and its components, parents GM 3, GDM 4 and SKM 904 and the hybrids SKM 904 x RGN-303, GDM 4 x RGN-282 and GDM 4 x SKM 518 were identified superior hybrids for their large scale testing.

Key words: Heterosis, Combining ability, Gene action and Indian mustard

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Analysis of Yield and Its Components Based on Heterosis and Combining Ability in Indian Mustard (Brassica juncea L. Czern & Coss.), Shrimali, T.M., Chauhan, R.M., Prajapati, K.P., Desai, S.A., Patel, J.R., Patel, P.T., Patel, P.J. and Chaudhary, B.K., Int. J. Pure App. Biosci.6(1): 219-224 (2018). doi: http://dx.doi.org/10.18782/2320-7051.4080