2005～2007年辽宁省稻瘟病菌种群动态分析  

Race Dynamics analysis of Rice Blast in Liaoning Province in 2005-2007

作　　者：刘志恒[1] 王经纬[1] 杨红[1] 魏松红[1] 赵玲玲[1] 于淼[1] 

机构地区：[1]沈阳农业大学植物保护学院,沈阳110161

出　　处：《沈阳农业大学学报》2009年第3期282-285,共4页Journal of Shenyang Agricultural University

基　　金：辽宁省科技攻关项目(2006215004)

摘　　要：2005～2007年,分离测定了辽宁省稻瘟病菌171个菌株,经7个中国鉴别品种鉴定,划分为7群40个生理小种。辽宁省流行的优势种群为ZA群和ZF群,致病性强的籼型小种类群出现频率增加,弱致病类群的粳型小种出现频率下降,ZG群小种2006年暂时未见。In 2005-2007, physiological races of rice blast in Liaoning Province were identified. Monospore strains of pyricularia grisea Saceardo isolated from Liaoning Province were identified by using 7 Chinese different varieties （T）. 171 monospore strains were divided into 7 groups and 40 physiological races. The tests showed that ZA and ZF were dominant groups in Liaoning Province. In recent years, the occurrence frequency of high virulent races of indiea and japonica races increased, and that of low ones were decreased. The races of ZG disappeared in 2006.

关 键 词：辽宁省 稻瘟病菌 生理小种 种群动态 

分 类 号：S435.111.41[农业科学—农业昆虫与害虫防治]