水稻品种抗稻瘟病性丧失规律  

Law of Resistance Breakdown of Rice Varieties to Rice Blast

作　　者：潘学贤[1] 程开禄[1] 黄富[1] 刘成元[1] 刘兴义[1] 

机构地区：[1]四川省农科院水稻高粱研究所,四川泸州646100

出　　处：《云南农业大学学报》2004年第5期536-540,共5页Journal of Yunnan Agricultural University

基　　金：四川省攻关项目

摘　　要：通过对川东南稻区汕优63,冈优22等主栽品种抗瘟性变化与病菌致病性变异的关系十余年的系统监测和研究分析,探明了水稻品种抗瘟性丧失规律,对品种抗性丧失预警和品种布局具有重要实践意义。Relationship between resistance variation of main hybrid rice varieties, such as Shanyou 63, Gangyou 22 etc., and pathogenicity variation of blast pathogen were systematically monitored and were analyzed in the southeast of Sichuan Province in 1987～2002. The law of resistance breakdown of rice varieties to rice blast were found. And it was of great practical importance to prediction of resistance breakdown of rice varieties to rice blast and application of rice varieties resistant to rice blast.

关 键 词：水稻品种 稻瘟病 抗瘟性丧失 

分 类 号：S435.111[农业科学—农业昆虫与害虫防治]