International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 6
First page : (300) Last page : (306)
Article doi: http://dx.doi.org/10.18782/2320-7051.5846
Genetic Variability, Correlation and Path Analysis in F2 Generation of Interspecific Cross of Gossypium arboreum and Gossypium herbaceum for Yield and its Component Traits
Jawahar Sri Gopi T.* and Patil B. R.
Department of Genetics and Plant Breeding College of Agriculture, UAS, Dharwad-580005
*Corresponding Author E-mail: jaweesree@gmail.com
Received: 6.10.2017 | Revised: 10.11.2017 | Accepted: 14.11.2017
ABSTRACT
The success of most crop improvement programs depends on variability and heritability of desirable traits. A study on genetic variability, correlation and path coefficient analysis for seed cotton yield and its component traits in the F2 population of cross QTP 5 × ASh 90 was conducted at Botanical garden, University of Agricultural Sciences, Dharwad during kharif 2016. The segregating populations thus obtained were evaluated for eight quantitative traits. A wide range of variability was observed for plant height, number of sympodia, number of bolls and seed cotton yield per plant. The two F2 populations recorded high GCV, heritability and GAM estimates for seed cotton yield and number of bolls per plant. Seed cotton yield recorded significant positive correlation with number of bolls and number of sympodia per plant. Path coefficient analysis of seed cotton yield revealed the maximum direct contribution from number of bolls per plant and boll weight. The number of bolls per plant had maximum indirect contribution through number of locules per boll.
Key words: Phenotypic coefficient of variance, Genotypic Coefficient of Variance, Heritability, Genetic Advance as Per Cent of Mean, Correlation, Path Coefficient.
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Jawahar, S.G.T. and Patil, B. R., Genetic Variability, Correlation and Path Analysis in F2 Generation of Interspecific Cross of Gossypium arboreum and Gossypium herbaceum for Yield and its Component Traits, Int. J. Pure App. Biosci.5(6): 300-306 (2017). doi: http://dx.doi.org/10.18782/2320-7051.5846
