Genetic Diversity of Selected Upland Rice Genotypes (Oryza sativa L.) for Grain Yield and Related Traits
Seventy-seven upland rice genotypes including popular cultivars in Nigeria and introduced varieties selected from across rice-growing regions of the world were evaluated under optimal upland ecology. These genotypes were characterised for 10 traits and the quantitative data subjected to Pearson corr...
| Main Authors: | , , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Sciencedomain International
2018
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| Online Access: | https://hdl.handle.net/10568/102039 |
| _version_ | 1855524722386665472 |
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| author | Anyaoha, C. Adegbehingbe, F. Uba, U. Popoola, B. Gracen, V. Mande, S. Onotugoma, E. Fofana, M. |
| author_browse | Adegbehingbe, F. Anyaoha, C. Fofana, M. Gracen, V. Mande, S. Onotugoma, E. Popoola, B. Uba, U. |
| author_facet | Anyaoha, C. Adegbehingbe, F. Uba, U. Popoola, B. Gracen, V. Mande, S. Onotugoma, E. Fofana, M. |
| author_sort | Anyaoha, C. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Seventy-seven upland rice genotypes including popular cultivars in Nigeria and introduced varieties selected from across rice-growing regions of the world were evaluated under optimal upland ecology. These genotypes were characterised for 10 traits and the quantitative data subjected to Pearson correlation matrix, Principal Component Analysis and cluster analysis to determine the level of diversity and degree of association existing between grain yield and its related component traits. Yield and most related component traits exhibited higher PCV compared to growth parameters. Yield had the highest PCV (41.72%) while all other parameters had low to moderate GCV. Genetic Advance (GA) ranged from 9.88% for plant height at maturity to 41.08% for yield. High heritability estimates were recorded for 1000 grain weight (88.71%), days to 50% flowering (86.67%) and days to 85% maturity (71.98%). Furthermore, grain yield showed significant positive correlation with days to 50% flowering and number of panicles m-2. Three cluster groups were obtained based on the UPGMA and the first three principal components explained about 64.55% of the total variation among the 10 characters. The PCA results suggests that characters such as grain yield, days to flowering, leaf area and plant height at maturity were the principal discriminatory traits for this rice germplasm indicating that selection in favour of these traits might be effective in this population and environment. |
| format | Journal Article |
| id | CGSpace102039 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| publisher | Sciencedomain International |
| publisherStr | Sciencedomain International |
| record_format | dspace |
| spelling | CGSpace1020392025-11-05T06:50:08Z Genetic Diversity of Selected Upland Rice Genotypes (Oryza sativa L.) for Grain Yield and Related Traits Anyaoha, C. Adegbehingbe, F. Uba, U. Popoola, B. Gracen, V. Mande, S. Onotugoma, E. Fofana, M. germplasm heritability rice genetic diversity (as resource) oryza sativa Seventy-seven upland rice genotypes including popular cultivars in Nigeria and introduced varieties selected from across rice-growing regions of the world were evaluated under optimal upland ecology. These genotypes were characterised for 10 traits and the quantitative data subjected to Pearson correlation matrix, Principal Component Analysis and cluster analysis to determine the level of diversity and degree of association existing between grain yield and its related component traits. Yield and most related component traits exhibited higher PCV compared to growth parameters. Yield had the highest PCV (41.72%) while all other parameters had low to moderate GCV. Genetic Advance (GA) ranged from 9.88% for plant height at maturity to 41.08% for yield. High heritability estimates were recorded for 1000 grain weight (88.71%), days to 50% flowering (86.67%) and days to 85% maturity (71.98%). Furthermore, grain yield showed significant positive correlation with days to 50% flowering and number of panicles m-2. Three cluster groups were obtained based on the UPGMA and the first three principal components explained about 64.55% of the total variation among the 10 characters. The PCA results suggests that characters such as grain yield, days to flowering, leaf area and plant height at maturity were the principal discriminatory traits for this rice germplasm indicating that selection in favour of these traits might be effective in this population and environment. 2018-04-25 2019-07-02T14:57:00Z 2019-07-02T14:57:00Z Journal Article https://hdl.handle.net/10568/102039 en Open Access application/pdf Sciencedomain International Anyaoha, C., Adegbehingbe, F., Uba, U., Popoola, B., Gracen, V., Mande, S., Onotugoma, E., and Fofana, M. 2018. Genetic Diversity of Selected Upland Rice Genotypes (Oryza sativa L.) for Grain Yield and Related Traits. International Journal of Plant & Soil Science 22(5): 1-9 |
| spellingShingle | germplasm heritability rice genetic diversity (as resource) oryza sativa Anyaoha, C. Adegbehingbe, F. Uba, U. Popoola, B. Gracen, V. Mande, S. Onotugoma, E. Fofana, M. Genetic Diversity of Selected Upland Rice Genotypes (Oryza sativa L.) for Grain Yield and Related Traits |
| title | Genetic Diversity of Selected Upland Rice Genotypes (Oryza sativa L.) for Grain Yield and Related Traits |
| title_full | Genetic Diversity of Selected Upland Rice Genotypes (Oryza sativa L.) for Grain Yield and Related Traits |
| title_fullStr | Genetic Diversity of Selected Upland Rice Genotypes (Oryza sativa L.) for Grain Yield and Related Traits |
| title_full_unstemmed | Genetic Diversity of Selected Upland Rice Genotypes (Oryza sativa L.) for Grain Yield and Related Traits |
| title_short | Genetic Diversity of Selected Upland Rice Genotypes (Oryza sativa L.) for Grain Yield and Related Traits |
| title_sort | genetic diversity of selected upland rice genotypes oryza sativa l for grain yield and related traits |
| topic | germplasm heritability rice genetic diversity (as resource) oryza sativa |
| url | https://hdl.handle.net/10568/102039 |
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