江西省稻瘟病菌生理小种研究  

Study on the Physiological Races of Rice Blast Fungus in Jiangxi Province

作　　者：邓敏军[1] 黄瑞荣[1] 陈龙稳 杨志华 张礼银 钟露霞 

机构地区：[1]江西省农业科学院植物保护研究所 [2]江西省吉安地区农业科学研究所 [3]赣州地区农业科学研究所

出　　处：《江西农业学报》1989年第2期54-58,共5页Acta Agriculturae Jiangxi

摘　　要：1983～1985年,应用我国统一使用的七个稻瘟病菌生理小种鉴别品种,对我省64个县(市)的320个稻瘟病菌单孢菌株进行了鉴定.鉴定结果全省稻瘟病菌共七群30个生理小种.其中ZG_1为优势小种,出现频率为43.1%,广泛分布于平原稻区;ZB_(15)、ZC_(15)和ZC_(13)小种,出现频率分别为15.3%、10.3%和6.3%,主要分布在山区和丘陵稻区.结果还表明,我省籼型小种居多,出现频率为48.4%,ZB群小种出现频率有所上升.各地出现的生理小种与当地种植品种类型密切相关.320 monosporous cultures of rice blast (Pyricularia oryzae cav.) isolated from 64 counties/ cities in Jiangxi Proy, China were inoculated into 7 national termed differential hosts during from 1983~ 1985. They were differentiated into 7 groups, 30 Chinese races. Of which ZA group had 3 races, ZB group 12 races. ZC group 7 races, ZD and ZE groups had 3 races each, ZF and ZG groups 1 race each. Among them ZGtwas the predominate race with an appearing frequence of 43.1% and distributed in 48 counties / cities, and mostly existed in plain paddy regions or hilly fields. Other main races as ZB15, ZC15and ZB13 had appearing frequences of 15.3%, 10.3% and 6.3% respectively, and they existed mainly in mountainous and hilly regions of Jiangxi Provjnvestigations showed that the indica type races were of the majority , with a mean frequence of 48.4%. The races of ZB group were currently showing a rising trend in their appearing frequences . There existed a close relationship between the locally appeared races and the rice cultivars in that area.

关 键 词：稻瘟病菌 生理小种 品种 

分 类 号：S[农业科学]