Genetic variability and character association studies in frenchbean (Phaseolus vulgaris L.) genotypes under foot hill condition of Nagaland Murry Nongothung, Shah Pankaj Kumar1,*, Kanaujia S.P. Department of Horticulture, School of Agricultural Sciences & Rural Development, Nagaland University, Medziphema-797106, Dimapur, Nagaland 1Department of Genetics & Plant Breeding, SASRD, Nagaland University *Corresponding author: pankajshah0112@gmail.com
Online published on 25 May, 2023. Abstract This experiment was conducted at School of Agricultural Sciences and Rural Development, Medziphema Campus, Nagaland University during the Rabi season of 2019–2020 with 32 genotypes of French bean (Phaseolus vulgaris L.) to evaluate genetic variability, correlation coefficient and path coefficient. The genotypes were studied for 15 different characters of growth and yield attributing characters in a RBD with three replications. All characters recorded higher PCV over GCV thereby indicating the influence of environmental factors in their expression. High heritability was observed for all the characters studied and high heritability coupled with high genetic advance was found for number of pods per plant, average pod weight, 100 seed weight and pod yield per plant. Correlation coefficient analysis showed pod yield had significant and positive correlation with number of pods per plant, pod length, average pod weight and 100 seed weight. Path analysis revealed that maximum positive direct effect was brought about by pod yield per plant, number of seeds per pod, ascorbic acid, TSS, days taken to 1st flowering, days taken to marketable maturity, protein and pod width. Top Keywords French bean, Genetic variability, PCV, GCV, Genetic advance, Heritability, Correlation coefficient. Top |