Vol. 7 (2) : March-April 2016 issue
Green Farming Vol. 7 (2) : 272-276 ; March-April, 2016
Correlation & path co-efficient analysis of yield & its components in mini-core and advanced breeding lines of groundnut
RAJASHEKAR INDI1*, SAVITHRAMMA D.L.2 and VINUTHA D.N.3
Department of Genetics and Plant Breeding University of Agricultural Sciences, Bengaluru - 560 065 (Karnataka)
Designation : 1Ph.D. Scholar *(agrirazz4591@gmail.com), 2Professor, 3Senior Research Fellow
Subject : Crop Genetics and Plant Breeding
Paper No. : P-4434
Total Pages : 5
Received : 30 October 2015
Revised accepted : 27 February 2016
Get Access
Citation :
RAJASHEKAR INDI, SAVITHRAMMA D.L. and VINUTHA D.N. 2016. Correlation & path co-efficient analysis of yield & its components in mini-core and advanced breeding lines of groundnut. Green Farming Vol. 7 (2) : 272-276 ; March-April, 2016
ABSTRACT
Groundnut (Arachis hypogaea L.) is one of the most important oil seed crop of the world. The present study was undertaken to evaluate mini-core collection consisting of 216 genotypes for water use efficiency, late leaf spot and yield related traits during kharif july and late kharif august 2012. Studies on association of different traits revealed that between most of the traits shows significant correlation. The pod yield per plant had significant positive correlation with pods per plant, kernel yield per plant, test weight and SCMR while significant negative correlation with late leaf spot and SLA suggesting the scope for pod yield improvement. Path co-efficient analysis indicated that the kernel yield per plant and shelling percentage had highest positive and negative direct effect on pod yield per plant respectively. Maximum positive direct effect on pod yield per plant through kernel yield per plant was observed during both the season. Hence selection for kernel yield would contribute greatly towards enhancing pod yield per plant.
Key words :
Advance breeding lines, Correlation, Groundnut, Late leaf spot, Path co-efficient, SCMR and SLA.
