ARTICLES

Combining Ability Analysis of N2-Fixation and Related Traits in Peanut¹

Authors: S. N Nigam , S. L Dwivedi , P. T. C Nambiar , R. W Gibbons , P. J Dart

  • Combining Ability Analysis of N2-Fixation and Related Traits in Peanut¹

    ARTICLES

    Combining Ability Analysis of N2-Fixation and Related Traits in Peanut¹

    Authors: , , , ,

Abstract

Analysis of a six parent diallel cross involving high and low nitrogen fixing peanut (Arachis hypogaea L.) genotypes revealed the predominant nature of non-additive genetic variance for nitrogenase activity and other traits. Germplasm line, NC Ac 2821 had the highest general combining ability for nitrogenase activity, total nitrogen, leaf area, and top weight, and therefore, it should be a good parent for use in breeding programs. Nitrogenase activity was significantly and positively correlated with nodule number, nodule mass, total nitrogen, top weight, and root weight. This evidence suggests the possibility of breeding for increased nitrogen fixation and thus yield in peanut.

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Keywords: Groundnut, Arachis hypogaea, genetic variance, correlations

How to Cite:

Nigam, S. & Dwivedi, S. & Nambiar, P. & Gibbons, R. & Dart, P., (1985) “Combining Ability Analysis of N2-Fixation and Related Traits in Peanut¹”, Peanut Science 12(2), p.55-57. doi: https://doi.org/10.3146/pnut.12.2.0001

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Published on
30 Jun 1985
Peer Reviewed

Author Notes

1International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), ICRISAT Centr, Patancheru P. O. 502 324, India. ICRISAT Journal Article No. 340.