Genetic variability for quantitative traits in recombinant inbred lines of groundnut (Arachis Hypogaea l.) grown under intermittent drought stress

Srivalli, P. and Nadaf, H.L. (2015) Genetic variability for quantitative traits in recombinant inbred lines of groundnut (Arachis Hypogaea l.) grown under intermittent drought stress. Plant Archives, 15 (1). pp. 205-209.

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Abstract

The present investigation was undertaken to study the extent of genetic variability for pod yield and other quantitative in groundnut during summer 2012-13 and summer 2013-14. Analysis of variance for individual seasons of summer 2012-13 and 2013-14 indicated that genotypes included in the study differed for all traits in each season. High PCV, GCV and wide range of variation was recorded by most of the quantitative traits viz., number of secondary branches per plant, number of pegs per plant, number of mature pods per plant, number of immature pods per plant, sound mature kernel per cent and 100 seed weight in both the irrigation levels in each season. Moderate to high heritability and genetic advance as per cent of mean were observed for majority of characters except for days to 50% flowering, days to maturity and number of primary branches per plant indicating that these traits were mainly governed by additive gene action and response to selection could be effected for further improvement of these traits through simple selection under water stress conditions to improve the groundnut for drought tolerance

Item Type: Article
Uncontrolled Keywords: Groundnut, drought tolerance, genetic variability, heritability and genetic advance
Author Affiliation: Department of Genetics and Plant Breeding, University of Agricultural Sciences, Dharwad-580 005 (Karnataka), India.
Subjects: Crop Improvement
Divisions: Groundnut
Depositing User: Mr T L Gautham
Date Deposited: 04 Sep 2015 10:23
Last Modified: 04 Sep 2015 10:23
URI: http://eprints.icrisat.ac.in/id/eprint/13818

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