Multivariate Analysis of the Diversity among Some Nigerian Accessions of Amaranthus hybridus
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Date
2007
Authors
Oboh, B.O.
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Abstract
A total of 16 accession of A. hybridus from the germplasm of the Nigerian Institute for Horticultural Research (NIHORT) was evaluated in field experiments at the Biological garden of the University of Lagos in 1999. Data was collected on 22 quantitative and visually assessed characters which included leaf length and width, number of days to 1st floral budding, days to 50% flowering, seed length and width and 500-seed weight. Data was analysed using various statistics which included means, standard deviation, correlations and cluster analysis. Results showed a wide range of diversity in most of the quantitative characters assessed with variability in plant height ranging from 74.30-181.00 cm, leaf length from 13.90-29.40 cm and leaf width from 7.00-12.40 cm. The accessions were further classified into 4 district groups with the accessions in each group demonstrating similar characteristics. Accessions within a group were closely placed in the dendogram and showed promise for use in cultivar development. The district groups could serve as breeding lines for the genetic improvement of A. hybridus through cross-breeding.
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Keywords
A. hybridus, Accessions, multivariate analysis, characters, genetic diversity, dendogram
Citation
Oboh, B. (2007). Multivariate analysis of the diversity among some Nigerian accessions of Amaranthus hybridus. International Journal of Plant Breeding and Genetics, 1(2), 89-94.