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《Journal of Fujian Agricultural and Forestry University(Natural Science Edition)》 2004-02
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Genetic analysis for appearance quality characters in indica hybrid rice

FANG Ping-ping, LIN Li-hui, LI Wei-ming, WU Wei-ren, PAN Guo-liang (College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China)  
Five CMS and five restorer lines were used to make incomplete diallel crosses to investigate the inheritance of 5 appearance characters, including kernel length (KL), length/breadth ratio (LBR), chalky rice percentage (CR),chalky score (CS) and kernel translucency (KT), in high quality indica hybrid rice. The results presented as follows: (1) The genetic variation (V_G) for each of 6 characters accounted for more than 64% of phenotype variation,indicating that all of appearance quality were mainly controlled by genetic effect.(2) The genetic effects of all characters were mainly attributable to maternal additive(V_(Am))and direct additive (V_A), with maternal additive effect predominating for KT,while direct additive effect dominating for KL, LBR, CR and CS. (3) Among 5 characters,the genotype×environment effect (V_(GE)) for CR, CS and KT was higher, which accounted for 35.1%, 31.3% and 27.1% of phenotype variation respectively.
【Fund】: 福建省青年人才创新基金(2001J045);; 福建省教育厅(K2001061)资助项目.
【CateGory Index】: S511.01
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