Phenotypic and genotypic correlation and path analysis in the advance breeding lines of desi cotton
Bangaremma S. Wadeyar
S. T. Kajjidoni
Department of Genetics and Plant Breeding, University of Agricultural Sciences, Dharwad-580005, India
Molecular Plant Breeding, 2014, Vol. 5, No. 12 doi: 10.5376/mpb.2014.05.0012
Received: 19 Jul., 2014 Accepted: 28 Aug., 2014 Published: 22 Oct., 2014
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Preferred citation for this article:
Wadeyar and Kajjidoni, Phenotypic and genotypic correlation and path analysis in the advance breeding lines of desi cotton, Molecular Plant Breeding, 2014, Vol.5, No. 12 1-4 (doi: 10.5376/mpb.2014.05.0012)
Diploid cotton Gossypium herbaceum has wide adaptability under rainfed situation and also high degree of resistance to biotic and abiotic stresses. Correlation and path coefficient analysis have been worked out using five phenotypically diverse genotypes of diploid cotton (G. herbaceum (3) andG. arboreum (2)), with the objective to study the association between seed cotton yield and its components for seven quantitative characters in 202 progenies of desi cotton. High significant positive phenotypic and genotypic correlation coefficients were noticed for some of the important traits like number of bolls per plant, boll weight and plant height traits towards seed cotton yield. And also among the traits (inter) significant association was noticed which indirectly contributed to seed cotton yield. The correlation and path coefficient analysis together indicated that these traits should be considered as selection indices for seed cotton yield plant improvement programme.
G. herbaceum; G. arboreum, diploid cotton; phenotypic correlation; genotypic correlation; path coefficient