水稻品种对稻瘟菌的抗性谱和抗性类型的研究  

STUDIES ON THE RESISTANCE SPECTRUM AND TYPES OF RICE VARIETIES TO PYRICULARIA ORYZAE

作　　者：罗宽[1] 王国平[1] 黄声仪[1] 康春林[1] 

机构地区：[1]湖南农学院农学系

出　　处：《湖南农学院学报》1989年第3期60-65,共6页

摘　　要：259个水稻品种对57个菌株抗性谱和抗性类型的研究结果表明。7个国内和8个国际鉴别品种以及11个日本抗瘟基因代表品种的抗病谱,除Tetep,Dula r.K_3,东农363,NP-125和K_1较广外,其余品种抗菌率在80%以下,对湖南巳知的小种鉴别力不强。所有供试品种中,抗菌率90～100%的有110个品种。占供试品种42.5%。根据选择9个代表菌株的测定结果,可将抗病率在90%以上的110个品种分为9个抗病类型(各类型代表品种为赤块矮选,TKM_6,农试4号,红脚粘,城特235。矮脚白米籽,滇瑞137,辐包22和密阳147)。朝六早为感病类型,本文还讨论了抗性谱和抗性类型划分的意义与问题。The resistance of 259 , rice varieties against 57 isolates of blastpathogen are tested. Among them, 7 national differentials, 8 international differentials and 11 Japanese varieties with different resistant genes, except Tetep, Dular,K_3, Tongnong 363, NP 125 and K_1, have relatively narrow resistance spec-trums-and resist to less than 80% of the isolated. Their capabilities to differen-tiate races in Hunan are weak. no of the total varietier (42.5%) tested showbroad spectrums which resist to 90-100% of the isolates tested. According totheir reactions to 9 isolates selected, they can be classfied into 9 resistant types(Chikuaiai-xue,TKM_6, Nongshi No.4 Hong jiao zhan, Cheng tie 235, Aijia bai mizi, Tian shui 137, Fu bao 22 and Mi yong 147) and one susceptible type(Chaoliu zao).

关 键 词：水稻 品种抗性 稻瘟病 抗性谱 

分 类 号：S511.102[农业科学—作物学]