RAVISH PANCHTA*, SATYAWAN ARYA, DALVINDER PAL SINGH, SATPAL, PREETI AND RAJENDER KUMAR
Forage Section, Department of Genetics & Plant Breeding
Department of Mathematics and Statistics
Department of Basic Engineering
CCS Haryana Agricultural University, Hisar-125 004 (Haryana), India
*(e-mail : r.panchta@gmail.com)
(Received : 10 September 2020; Accepted : 14 December 2020)
SUMMARY
Fourteen genotypes of cowpea (Vigna unguiculata (L.) Walp) were evaluated for character association during kharif 2017. The genotypes were analyzed for genetic variability, correlation and path coefficients. The genotypes were found significantly different for all the characters, which indicated scope for further genetic studies. High heritability along with high genetic advance was recorded in seed yield per plot, days to 50% flowering and plant height indicating predominance of additive effects in the inheritance of these characters. The phenotypic coefficient of variation (PCV) estimates was invariably higher than their corresponding genotypic coefficient of variation (GCV) values. This suggests the environmental influence. High GCV and PCV were observed for seed yield per plot, days to 50% flowering, days to maturity and plant height suggesting that selection based on these characters would facilitate successful isolation of desirable types. Number of seeds per pod had positive and significant correlation at genotypic level with seed yield per plot. The traits like number of seeds per pod, number branches per plant and days to maturity showed direct effect on seed yield per plot. Two genotypes viz. GC 3 and PTBCP 4 were found resistant against Cowpea Yellow Mosaic Virus (CYMV) disease.
Key words:Cowpea, Genetic advance, GCV, PCV, Heritability