Multivariate analysis of 102 Indian cowpea (Vigna unguiculata (L.) Walp.) germplasm
Better understanding of genetic resources available in the crop is the crucial and foremost step in any breeding program. In the present study, 102 cowpea germplasm based on twelve quantitative characters were subjected to Principal Component Analysis (PCA). The PCA analysis dissected the total vari...
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| Format: | Article |
| Language: | English |
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Indian Society of Plant Breeders
2020-03-01
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| Series: | Electronic Journal of Plant Breeding |
| Subjects: |
| _version_ | 1818661873744084992 |
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| author | E. Vijayakumar, K. Thangaraj, T. Kalaimagal, C. Vanniarajan, N. Senthil and P. Jeyakumar |
| author_facet | E. Vijayakumar, K. Thangaraj, T. Kalaimagal, C. Vanniarajan, N. Senthil and P. Jeyakumar |
| author_sort | E. Vijayakumar, K. Thangaraj, T. Kalaimagal, C. Vanniarajan, N. Senthil and P. Jeyakumar |
| collection | DOAJ |
| description | Better understanding of genetic resources available in the crop is the crucial and foremost step in any breeding program. In the present study, 102 cowpea germplasm based on twelve quantitative characters were subjected to Principal Component Analysis (PCA). The PCA analysis dissected the total variation into five major principal components which accounted for 76.53 per cent of total variation. First two PC’s were used to construct the biplot in which the genotypes viz., VCP-12-008, PG-CP- 1, TY 1145, ACM 0505 are scattered apart in all the four quadrates representing maximum genetic divergence. Single plant yield followed by number of clusters per plant, number of pods per plant and number of seeds per pod contributes maximum divergence in the first PC. Hence, genetic and phenotypic variations exist among 102 cowpea genotypes could be used in genetic improvement of the cowpea through simple selection and crossing potential parents. |
| first_indexed | 2024-12-17T04:51:59Z |
| format | Article |
| id | doaj.art-6a25b82434b5496c80e8fba4e87f5e6e |
| institution | Directory Open Access Journal |
| issn | 0975-928X |
| language | English |
| last_indexed | 2024-12-17T04:51:59Z |
| publishDate | 2020-03-01 |
| publisher | Indian Society of Plant Breeders |
| record_format | Article |
| series | Electronic Journal of Plant Breeding |
| spelling | doaj.art-6a25b82434b5496c80e8fba4e87f5e6e2022-12-21T22:02:52ZengIndian Society of Plant BreedersElectronic Journal of Plant Breeding0975-928X2020-03-0111117618310.37992/2020.1101.031Multivariate analysis of 102 Indian cowpea (Vigna unguiculata (L.) Walp.) germplasmE. Vijayakumar, K. Thangaraj, T. Kalaimagal, C. Vanniarajan, N. Senthil and P. JeyakumarBetter understanding of genetic resources available in the crop is the crucial and foremost step in any breeding program. In the present study, 102 cowpea germplasm based on twelve quantitative characters were subjected to Principal Component Analysis (PCA). The PCA analysis dissected the total variation into five major principal components which accounted for 76.53 per cent of total variation. First two PC’s were used to construct the biplot in which the genotypes viz., VCP-12-008, PG-CP- 1, TY 1145, ACM 0505 are scattered apart in all the four quadrates representing maximum genetic divergence. Single plant yield followed by number of clusters per plant, number of pods per plant and number of seeds per pod contributes maximum divergence in the first PC. Hence, genetic and phenotypic variations exist among 102 cowpea genotypes could be used in genetic improvement of the cowpea through simple selection and crossing potential parents.cowpeagermplasmpca and genetic divergence |
| spellingShingle | E. Vijayakumar, K. Thangaraj, T. Kalaimagal, C. Vanniarajan, N. Senthil and P. Jeyakumar Multivariate analysis of 102 Indian cowpea (Vigna unguiculata (L.) Walp.) germplasm Electronic Journal of Plant Breeding cowpea germplasm pca and genetic divergence |
| title | Multivariate analysis of 102 Indian cowpea (Vigna unguiculata (L.) Walp.) germplasm |
| title_full | Multivariate analysis of 102 Indian cowpea (Vigna unguiculata (L.) Walp.) germplasm |
| title_fullStr | Multivariate analysis of 102 Indian cowpea (Vigna unguiculata (L.) Walp.) germplasm |
| title_full_unstemmed | Multivariate analysis of 102 Indian cowpea (Vigna unguiculata (L.) Walp.) germplasm |
| title_short | Multivariate analysis of 102 Indian cowpea (Vigna unguiculata (L.) Walp.) germplasm |
| title_sort | multivariate analysis of 102 indian cowpea vigna unguiculata l walp germplasm |
| topic | cowpea germplasm pca and genetic divergence |
| work_keys_str_mv | AT evijayakumarkthangarajtkalaimagalcvanniarajannsenthilandpjeyakumar multivariateanalysisof102indiancowpeavignaunguiculatalwalpgermplasm |