稻瘟病菌种群在不同水稻品种上的相对寄生适合度研究  

Estimating relative parasitic fitness of blast fungus to rice variety in Zhejing

作　　者：孙国昌[1] 柴荣耀[1] 杜新法[1] 陶荣祥[1] 孙漱沅[1] 

机构地区：[1]浙江省农业科学院植物保护研究所,杭州310021

出　　处：《浙江农业学报》1998年第6期281-284,共4页Acta Agriculturae Zhejiangensis

基　　金：国家攀登计划资助!85-31-05-03

摘　　要：研究了分属于7群10个小种的24个稻瘟病菌单孢菌株对不同抗性类型品种的相对寄生适合度，结果表明小种的相对寄生适合度明显地受到水稻品种的抗性类型的影响，13个单基因粳稻品种具有较强相对寄生适合度的是ZA、ZD、ZE和ZB群小种，而对籼、粳稻主栽品种具有较强相对寄生适合度的则分别是ZB、ZC和ZD、ZA、ZE群小种，同时，研究表明稻瘟病菌小种异质性对相对寄生适合度的评价有较大的影响。Estimating relative parasitic fitness of 24 isolates of rice blast fungus, Pyricularia grisea, was analyzed from Zhejiang provinces to various degree resistance varieties during 1996-1997. Results showed that the ZA,ZD,ZE,ZB races groups have highly relative parasitic fitness to 13 monogenic japonica varieties. And the races of ZB, ZC groups and ZD, ZA, ZE groups have highly relative parasitic fitness to indica and japonica leading rice varieties. In addition, the influence was analyzed that the heterogeneity of blast races on estimating relative parasitic fitness.

关 键 词：水稻 稻瘟病菌 相对寄生适合度 

分 类 号：S435.111.4[农业科学—农业昆虫与害虫防治]