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International Journal of Applied Agricultural & Horticultural Sciences
  • 29 April, 2024
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Language : English
DOI Prefix : 10.37322
P-ISSN : 0974-0775
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Vol. 5 (4) : July-August 2014 issue
Green Farming Vol. 5 (4) : 520-523 ; July-August, 2014
Genetic variability & association pattern among disease resistance, nutritional quality & productivity traits in recombinant inbred lines of groundnut
T.P. MUHAMMED AZHARUDHEEN1*, H.D. PUSHPA2 and M.V.C. GOWDA3
Deptt. of Genetics & Plant Breeding, University of Agricultural Sciences, Dharwad- 580005 (Karnataka)
Designation :  
1,2Ph.D. Scholar *(tpazhar@gmail.com), 3Project Co-Oridnator
Subject : Crop Genetics and Plant Breeding
Paper No. : P-1761
Total Pages : 4
Received : 01 April 2014
Revised accepted : 28 July 2014
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Citation :

T.P. MUHAMMED AZHARUDHEEN, H.D. PUSHPA and M.V.C. GOWDA. 2014. Genetic variability & association pattern among disease resistance, nutritional quality & productivity traits in recombinant inbred lines of groundnut. Green Farming  Vol. 5 (4) : 520-523  ;  July-August, 2014

ABSTRACT
A recombinant inbred line (RIL) population derived from the cross TG 49 x GPBD 4 was phenotyped for disease resistance (rust and late leaf spot), quality (protein content, oil content and O/L ratio) and productivity traits (pod yield/plant, 100-seed weight and shelling %) in two seasons (summer and kharif 2009).The ANOVA indicated significant variation for all the traits. Phenotypic data analysis for genetic variability components revealed higher magnitude of variation with high heritability for diseases, moderate to high variability with high heritability for nutritional quality and higher magnitude of variation but lower heritable variation for productivity traits. Transgressive segregants, for almost all the traits, in both the directions indicated contribution of favourable alleles from both the parents. Correlation between rust and LLS was negative revealing antagonistic nature of the diseases. Highly significant and positive correlation was observed between protein and oil content; 100-seed weight and pod yield per plant. Several RILs superior to best parent were identified for different traits which could be utilized in future breeding programmes. The study indicated scope for combining high yield and disease resistance with desirable confectionery traits.
Key words :
Correlation, Groundnut, Heritability, Late leaf spot, Oil, O/L ratio, Protein content, Rust.