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- W2354912924 abstract "The results of genetic analysis for yield components of rice showed as follows. (1) All of yield components were affected by not only additive gene action and dominant gene action but also genotype×environment interactions. But their importances differed for different yield components. In summary, for most of yield components, such as plumped number of grain per panicle, total number of grains per panicle, 1000 grain weight, grain length, grain width, length/width ratio of grains, panicle length and plant height, their additive effects were predominant; but dominant gene actions prevailed for effective number of panicles per plant and yield per plant. All of yield components existed interaction effect of dominance×environment, and also existed interaction effect of additive×environment except for two components of grain length and length/width ratios of grains. (2) The estimates of heritability components were obtained for all of yield traits. The heritability components varied with traits. In addition, the heritability was in some extent affected by environment for all of yield components, and larger affected for the traits that there are larger interaction heritability estimates. In general, the general narrow sense heritabilities were high for all of yield component except for effective number of panicle per plant and yield per plant, while the interactive narrow sense heritabilities were low. The interactive narrow sense heritabilities were slightly more than zero for grain length and length/width ratios of grains. (3) Significant genetic correlations were observed among all of yield component studied except for 1000 grain weight to effective number of panicles per plant and total number of grains per panicle. The magnitude and direction of corrilation differed for different trait combinations. Dominant genetic effects contributed mainly to the genetic correlations for most of trait combinations, but their additive genetic correlations were also significant. The effects of environments on genetic correlation exhibited mainly as additive × environment interaction correlations." @default.
- W2354912924 created "2016-06-24" @default.
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- W2354912924 date "2001-01-01" @default.
- W2354912924 modified "2023-09-25" @default.
- W2354912924 title "Genetic Analysis of Genotype×Environment Interaction for Yield Components of Rice( Oryza sativa L.) in Unequal Experiment Design" @default.
- W2354912924 hasPublicationYear "2001" @default.
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