COMBINING ABILITY ANALYSIS OF MORPHOLOGICAL AND PHYSIOLOGICAL ATTRIBUTES IN GROUNDNUT (ARACHIS HYPOGAEA L.)*

Article Id: ARCC3006 | Page : 177 - 181
Citation :- COMBINING ABILITY ANALYSIS OF MORPHOLOGICAL AND PHYSIOLOGICAL ATTRIBUTES IN GROUNDNUT (ARACHIS HYPOGAEA L.)*.Indian Journal Of Agricultural Research.2002.(36):177 - 181
V. Jayalakshmi1 , C. Raja Reddy2, p.v. Reddy and G. Lakshmikantha Reddy
Address : Department of Genetics and Plant Breeding, S.v. Agricultural College, Tirupati - 517 502, India

Abstract

Combining ability analysis of 21 F1 hybrids of a seven parent half diallel of groundnut indicated predominant additive genetic effects for specific leaf area (SLA), number of secondaries per plant, secondary nodes per plant, and harvest index and predominant non additive genetic effects for ill filled and immature pods per plant, pod yield and kernel yield. Both additive and rion additive gene actions were important in the expression of shoot bio mass, root dry mass and well filled mature pods per plant. Whereas shoot bio mass and harvest index exhibited significant gca x season interaction, number of secondaries and secondary nodes per plant, root dry mass, well filled and mature pods per plant, ill filled and immature pods per plant exhibited both gca x season as well as sca x season interaction. Parental genotypes Tirupati 1 and TAG 24 for kernel yield and harvest index, JL 24 for kernel yield and root dry mass, ICGV 86031 and TMV 2-NLM for SLA and shoot bio mass, ICG 2716 and TMV 2-NLM for shoot liio mass were identified as good general combiners with high mean per se for respective characters.

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