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K. SARITHA*, R. P. VASANTHI, M. SHANTHI PRIYA AND P. LATHA
Department of Genetics and Plant Breeding, S.V. Agricultural College, ANGRAU, Tirupathi- 517502, Chittoor Dt., Andhra Pradesh, India
The extent of genetic variability and association of important physiological, yield and yield characters were determined in a set of 32 groundnut genotypes. Analysis of variance revealed the existence of significant differences among genotypes for all the characters studied. The characters, pod yield plant-1, 100 seed weight and SLA at 60 DAS recorded moderate to high GCV, high heritability coupled with high genetic advance as percent of mean indicating that these traits were mainly under the influence of additive gene action and simple selection may be effective for improvement of these traits. Correlation and path co-efficient studies indicated that shelling percentage should be given major emphasis for the development of high yielding genotypes.
Correlation, groundnut, heritability, Path co-efficients, SPAD Chlorophyll Meter