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Asian Journal of Plant Sciences
Year: 2002  |  Volume: 1  |  Issue: 3  |  Page No.: 245 - 247

Inter-relationship Among Grain Quality Traits of Rice (Oryza sativa L.)

Muhammad Saif-ur-Rasheed, Hafeez Ahmad Sadaqat and Muhammad Babar    

Abstract: The analysis of variance indicated highly significant differences among the genotypes for all the traits studied except thickness of the grain. Covariance studies reflected significant to highly significant as well as negative differences among majority of character combinations. Broad sense heritability estimates for length breadth ratio and length of the grain ranged from 46.20 to 49.10. Genotypic correlation of 1000 grain weight and breadth of the grain with grain quality were significant, while non significant association were observed between length of the grain, length breadth ratio and rice quality index at genotypic level. Among the characters studied, breadth of the grain depicted the highest direct contribution of 2.239 and 1000 grain weight showed highest indirect contribution of 1.143 towards grain quality. Path coefficient analysis demonstrated that for better grain quality breadth of the grain, 1000 grain weight and length of the grain should be maximized.

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