Trait analysis and genome-wide association study to identify quantitative trait loci (QTLs) associated with agronomic and yield-component traits in elite irrigated rice breeding lines
2014
Begum, H.
Trait characterization of 431 rice elite breeding lines using 19 agronomic traits was done in field experiments in two seasons using a randomized complete block design at the International Rice Research Institute at Los Baños, [Laguna] Philippines. The aims of the research were to determine the extent of trait variation within rice lines, the relationship between yield and other traits to identify some traits that could serve as predictors to improve rice yield for breeding purposes. Correlation and estimates of broad sense heritability of the 19 characters associated with grain yield for the combined data showed significant genetic variability (P 0.001) amongst the genotypes. Of all the characters evaluated, number of filled grains per plant had the highest and significant positive correlation with grain yield per plant (r
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