Genetic correlation and path-coefficient analysis of yield and its components in groundnut (Arachis hypogaea L.) genotypes

Vinutha, D.N. and Aruna, Y.R. and Jagadeesh, B.N. and Savitramma, D.L. (2015) Genetic correlation and path-coefficient analysis of yield and its components in groundnut (Arachis hypogaea L.) genotypes. International Journal of Agricultural Science and Research, 5 (5). pp. 89-94.

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Abstract

Increasing of oil yield one of the most important goals in groundnut (Arachis hypogaea L.) breeding programs In this study, six F2 crosses of groundnut genotypes were evaluated to investigate the interrelationship among the yield attributing traits and physiological traits .The phenotypic correlation coefficients revealed that high association of pod and kernel yield with other yield attributing traits like number of pods plant-1 and sound mature kernel. The physiological traits of SCMR and SLA were significant negatively correlated with each other in all crosses except in cross GKVK- 5 × GPBD- 4. Phenotypic path coefficient analysis further delineated that the direct effect for pod yield plant-1 was mainly accelerated by kernel yield plant-1 in all six crosses, while other characters had very low direct effects on pod yield and thus kernel yield is the important trait for enhancing pod yield in groundnut. This association indicates that these yield related parameters can be used as preliminary screening tools for selecting high yielding genotypes for the next generation

Item Type: Article
Uncontrolled Keywords: Groundnut, Phenotypic Correlation Coefficient, Phenotypic Path Coefficient
Author Affiliation: Department of Genetics and Plant Breeding, University of Agricultural Sciences, Bangalore, Karnataka, India
Subjects: Crop Improvement
Divisions: Groundnut
Depositing User: Mr T L Gautham
Date Deposited: 27 Nov 2015 07:44
Last Modified: 27 Nov 2015 07:44
URI: http://eprints.icrisat.ac.in/id/eprint/14021

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