Studies On Genetic Variability And Heritability For Yield And Water Use Efficient Traits In Groundnut (arachis Hypogaea L.) Under Rainfed Conditions

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G. KAVITHA*, M. REDDI SEKHAR, K. HARIPRASAD REDDY, B. RAVINDRA REDDY, D. MOHAN REDDY AND K. JOHN

S.V. Agricultural College, Tirupati, Andhra Pradesh, India

ABSTRACT

Fifty genotypes of groundnut were evaluated for their genetic variability, heritability and genetic advance for a set of 16 agronomic and physiological characters during kharif, 2014. Analysis of variance revealed presence of highly significant differences among the genotypes for all characters indicating sufficient variability in the material studied. High PCV and GCV were observed for dry matter per plant, number of sound mature kernels per plant, kernel yield per plant, pod yield per plant and number of primaries per plant. High heritability coupled with high genetic advance as per cent of mean was observed for dry matter per plant, number of sound mature kernels per plant, pod yield per plant, number of primaries per plant, number of pods per plant, SLA at 60 DAS, number of seeds per pod, shelling percentage and SLA at 80 DAS indicating that these traits were mainly governed by additive gene effects and response to selection could be effected for further improvement of pod yield and its attributes through simple selection.

KEYWORDS:

Genetic advance, Groundnut, Heritability, Variability.

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