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Genetic Diversity of Selected Upland Rice Genotypes (Oryza sativa L.) for Grain Yield and Related Traits

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Title Genetic Diversity of Selected Upland Rice Genotypes (Oryza sativa L.) for Grain Yield and Related Traits
 
Creator Anyaoha, C.
Adegbehingbe, F.
Uba, U.
Popoola, B.
Gracen, V.
Mande, S.
Onotugoma, E.
Fofana, M.
 
Subject germplasm
heritability
rice
genetic diversity (as resource)
oryza sativa
 
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.
 
Date 2018-04-25
2019-07-02T14:57:00Z
2019-07-02T14:57:00Z
 
Type Journal Article
 
Identifier 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
2320-7035
https://hdl.handle.net/10568/102039
https://doi.org/10.9734/IJPSS/2018/40406
 
Language en
 
Rights CC-BY-4.0
Open Access
 
Format application/pdf
 
Publisher Sciencedomain International
 
Source International Journal of Plant and Soil Science