Estimation of genetic diversity of new advanced breeding lines of groundnut (Arachis hypogaea L.)

Kumar, S.I. and Govindaraj, M. and Kumar, V.K. (2010) Estimation of genetic diversity of new advanced breeding lines of groundnut (Arachis hypogaea L.). World Journal of Agricultural Sciences, 6 (5). pp. 547-554.

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Abstract

Sixty four groundnut genotypes collected from different sources and evaluated during late rainy season. The plant data recorded on fourteen characters were subjected to multivariant analysis to study the variability within the genotypes and to determine the efficiency of the methods in classifying genotypes. The first three axes both of factor analysis and principal component analyses (PCA) captured 59.52% of the total variability and jointly identified final pod yield per plant, kernel yield per plant and oil yield per plant as characters contributing most to total variation. The first three axes of the canonical and discriminant analyses accounted for 99 and 95% of the total variation respectively and identified in addition to the above characters oil content and branches per plant as important Ward's clustering method has grouped the genotypes in to three different distinct clusters. The effect of genetic divergence on the choice of parental stock and its improvement for breeding programme was discussed.

Item Type: Article
Author Affiliation: International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru 502 324, Andhra Pradesh, India
Subjects: Crop Improvement > Genetics/Genomics
Crop Improvement > Plant Breeding
Divisions: Groundnut
Depositing User: Mr T L Gautham
Date Deposited: 18 Oct 2010 09:13
Last Modified: 09 Dec 2010 20:50
URI: http://eprints.icrisat.ac.in/id/eprint/106

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