Estimation of Correlation and Path Analysis of Various Yield and Related Parameters in Cotton (Gossypium hirsutum L.)
1. Assistant Research Officer, Cotton Research Institute, AARI, Faisalabad, Pakistan
2. Faculty of Agricultural Sciences, Ghazi University, Dera Ghazi Khan, Pakistan
Cotton Genomics and Genetics, 2015, Vol. 6, No. 1 doi: 10.5376/cgg.2015.06.0001
Received: 20 Feb., 2015 Accepted: 05 Apr., 2015 Published: 10 Apr., 2015
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Preferred citation for this article:
Farooq et al., 2015, Estimation of Correlation and Path Analysis of Various Yield and Related Parameters in Cotton Gossypium hirsutum L., Cotton Genomics and Genetics, Vol.6, No.1 1-6 (doi: 10.5376/cgg.2015.06.0001)
The present research work was designed to estimate genotypic and phenotypic correlation coefficients and path analysis at the genotypic level between seed cotton yield and yield contributing traits in 18 cotton cultivars. The material was sown on 15th of May to observe association among yield and its related traits. Heritability was estimated to determine the selection criteria under normal growing conditions. The values of phenotypic coefficient of variation (PCV%) were higher in magnitude than the genotypic coefficient of variation (GCV%) for all the traits. Heritability (broad sense) revealed higher estimates for all traits like plant height (98%), cotton leaf curl virus (CLCuV%) (96.8%), nodes to first fruiting branch (95%), bolls per plant (91.5%), sympodia per plant (88.8%), yield (88%) monopodia per plant (84.7%) and for boll weight (82.3%).The results of phenotypic and genotypic correlation showed that sympodia per plant showed positive significant correlation with boll per plant, boll weight and yield at both genotypic and phenotypic levels. Boll weight showed strong association with the yield at both levels. Path coefficient analysis revealed that all traits influenced directly and positively on yield except for bolls per plant. The traits showing strong association along with higher heritability may be considered for selection in future breeding endeavors.
Broad sense heritability; Seed cotton yield; Cotton leaf curl virus; Phenotypic correlations; Sympodia per plant