• S. Suganthi
• J. L. Joshi
• R. Narayanan
• K. R. Saravanan

This study was conducted to assess the correlation coefficient among thirty genotypes for ten yield and yield contributing characters in cowpea using randomized block design with three replications. The present investigation on study of character association for yield and yield contributing traits in cowpea ( Vigna unguiculata L.Walp) was carried out in the year 2015-2016. The experiment was executed in the Plant Breeding Farm, Department of Genetics and Plant Breeding, Faculty of Agriculture. The yield and yield attributing traits like days to first flower, plant height (cm), number of branches per plant, number of clusters per plant, number of pods per cluster, pod length (cm), number of seeds per pod, number of pods per plant, hundred seed weight and seed yield per plant were recorded. The result on phenotypic and genotypic correlation coefficient revealed that seed yield per plant has positive correlation with days to first flowering (rg 0.192; rph 0.50), plant height (rg 0.273; rph 0.178), number of branches per plant (rg 0.454; rph 0.223), number of clusters per plant (rg 0.456;rph 0.405), number of pods per cluster (rg 0.594;rph 0.410), pod length (rg 0.045; rph 0.010), number of seeds per pod (rg 0.326; rph 0.295), number of pods per plant (rg 0.605; rph 0.525) and hundred seed weight (rg 0.200; rph 0.194 From the study it was concluded that the genotypic correlation was higher than the phenotypic correlation indicating the preponderance of genetic variance in the expression of different characters. The positive and significant association of yield contributing characters with seed yield per plant revealed the possibilities of simultaneous improvement of these traits by selection. This in turn will improve the seed yield.

correlation co-efficient, cowpea, seasons, genotypic, phenotypic

"Character association for yield and yield contributing traits in cowpea (Vigna unguiculata L. Walp) ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.4, Issue 11, page no.1066-1072, November-2017, Available :http://www.jetir.org/papers/JETIR1711170.pdf

"Character association for yield and yield contributing traits in cowpea (Vigna unguiculata L. Walp) ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.4, Issue 11, page no. pp1066-1072, November-2017, Available at : http://www.jetir.org/papers/JETIR1711170.pdf