宜香系列水稻品种对稻曲病的抗性研究  

Studies on Rice False Smut Resistance of Yixiang Hybrid Varieties

作　　者：王丽[1,2] 石军[1] 李德强[1] 张琴[1] 李小艳[1] 罗艺婉 江青山[2] 赵德明[2] 黄富[1] 

机构地区：[1]四川农业大学农学院,四川温江611130 [2]宜宾市农业科学院,四川宜宾644000

出　　处：《四川农业大学学报》2013年第4期365-369,共5页Journal of Sichuan Agricultural University

基　　金：农业部公益性行业(农业)科研专项(200903039-7);国家现代产业技术体系四川水稻创新团队项目(川农业[2009]75号)

摘　　要：【目的】对杂交稻品种进行稻曲病抗性鉴定,揭示宜香系列水稻品种抗稻曲病原因。【方法】在雅安和江油地区的水稻病圃,通过稻曲病抗病性鉴定,对不同杂交稻组合稻曲病病情指数进行方差分析及配合力分析。【结果】研究表明不同地方、不同品种年度间发病情况不同,稻曲病抗性受基因加性与非加性效应共同作用,母本对杂种F1代稻曲病抗性的形成有至关重要的影响。【结论】通过病情指数配合力分析为选配稻曲病抗性杂交组合提供依据。[Objective] This experiment was conduct to identify resistance of hybrid rice varieties on rice false smut and to reveal the rice false smut resistant of Yixiang varieties in Yaan and Jian- gyou areas. [Method] By identification resistance of different hybrid combinations on false smut resistance, ANOVA and combining ability analysis of disease index variance of rice false smut were performed. [Results] The results showed that the incidence differed from geography and breed in years, and genetic additive and non-additive effects work together on smut resistance. Female parent played a leading role on the false smut resistance in F1 hybrids. [Conclusion] Com- bining ability analysis through disease index provide the basis for selecting the anti-smut hybrids.

关 键 词：稻曲病 病情指数 病穗率 抗性 

分 类 号：S435.111.46[农业科学—农业昆虫与害虫防治]