Genetic variability, correlation and path coefficient analysis for quantitative traits in chickpea genotypes

Abstract

Fifty three germplasm of chickpea were undertaken to determine relationships among yield and some yield components using direct (variability, heritability, and genetic advance) and indirect selection parameters (correlation and path coefficient analysis). The present investigation was carried out at the Agriculture Research Farm of Institute of Agricultural Sciences, Banaras Hindu University, Varanasi during the rabi season of 2011-12. Significant genetic variations were observed among the genotypes for days to flower, days to maturity, plant height, number of branches plant -1 , number of pods plant -1 , 100-seed weight and seed yield plant -1 . Correlation studies revealed that seed yield was positively and significantly correlated with number of primary branches, number of secondary branches and number of pods plant -1. The path coefficient analysis based on seed yield, as a dependent variable, showed that pods plant -1 had the greatest direct effect on seed yield (0.81) followed by number of secondary branches. Both correlation and path analysis indicated that pods plant -1 and number of secondary branches were the major direct contributors to seed yield.

Assessment of Genetic Variability, Character Association and Path Analysis in F2 Segregating Population for Quantitative Traits in Chickpea

“…The inter relationship was positive and significant among the yield contributing traits like, number of secondary branches per plant with pods per plant, whereas, it were negative and significant among the traits like number of secondary branches per plant with test weight and pods per plant with test weight. Similar kind of interrelations was reported by Guler et al, (2001) for number of pods per plant and 100 seed weight and Bhanu et. al., (2017) for number of secondary branches per plant with pods per plant and 100 seed weight.…”

Phenotyping of mungbean (Vigna radiata L.) genotypes against salt stress and assessment of variability for yield and yield attributing traits

“…Also, other positive and significant correlations were found for days to maturity with plant height, number of pod-bearing branches per plant, number of pods per plant, pod length, number of seeds per pod, 100-seed weight, which shows that early maturing genotypes had a significant contribution to increasing the traits; plant height with the number of pod-bearing branches per plant, the number of pods per plant, the number of seeds per pod, indicating that increasing plant height resulted in more podbearing branches that accommodated more pods per plant and significantly increased the number of seeds per pod; pod length with number of seeds per pod and 100-seed weight revealed that seed weight and the number of seeds increased with increased pod length. These results agreed with those of previous workers [46,47,48,49]. Positive, but non-significant associations were for the number of pod-bearing branches per plant with pod length; the number of pods per plant with pod length which referred information of inherent relation among the pairs of combination.…”

Study of genetic diversity in Mungbean

“…While traits which showed negative direct effect on plants were plant height, numbers of primary branches per plant, number of pods per plant and pod length exerted direct negative effect on seed yield per plant. Similar findings have been recorded by Bhanu et al, (2016) and Keerthiga et al, (2018).…”