几种优良品种花器性状的遗传及相关分析  

Heritable and Correlation Analysis of Several Restore Line's Floral Character

作　　者：吴爽[1] 李成荃[1] 王守海[1] 杨仁崔[2] 张书标[2] 

机构地区：[1]安徽省农业科学院水稻研究所,合肥230031 [2]福建农业大学遗传所

出　　处：《安徽农业科学》2003年第2期171-172,174,共3页Journal of Anhui Agricultural Sciences

基　　金：国家高技术研究发展计划 ( 86 3计划 )经费资助课题编号2 0 0 1AA2 11171

摘　　要：选取 1 2个品种对 1 0个花器性状进行遗传分析 ,得知大多数性状的广义遗传力较大 ,仅颖花宽较小 ,柱头外露率的遗传变异系数最大 ,且选择效率最高。由此推论可通过杂交选择方法提高不育系的柱头外露率。多数性状间的遗传相关系数较大。通径分析表明 。The correlation coefficient of heritability, genotype and phenotype and path analysis of ten floral characters was studied and investigated in 12 restore lines. It was known that the broad-sense heritability of floral characters was large, except for spikelet width. Among genotype variation coefficients, the percent of exserted stigma, stigma length and stigma width were much greater than other floral characters, so was the genetic advance, which was to say hybrid selection was effective to increase the level of above characters.The values of the phenotypic and genotypic correlation coefficient between most of floral characters were relatively greater. The path analysis showed that the direct path coefficient of spikelet length to percent of exserted stigma was greater.

关 键 词：水稻 花器性状 优良品种 遗传分析 相关分析 杂交选择 不育系 柱头外露率 

分 类 号：S511[农业科学—作物学]