笔花豆炭疽病菌生物学特性和流行条件研究  

BlONOMICS AND EPIDEMIOLOGY OF ANTHRACNOSE ON STYLOSANTHES SPP.

作　　者：冯淑芬[1] 李凤娥[1] 何朝族[1] 林坚毅 

机构地区：[1]华南热带作物科学研究院植保所,广东省畜牧局饲料工作站

出　　处：《热带作物学报》1994年第1期87-95,共9页Chinese Journal of Tropical Crops

摘　　要：研究表明，笔花豆炭疽病主要由胶孢炭疽菌引起。病菌生长发育最适温度为２８℃，最佳湿度为１００％，最适ｐＨ值为６－７，连续光照对病菌生长有抑制作用，黑暗有助菌丝生长和孢子形成，分生孢子在葡萄糖液中生长和发芽最好。该病害主要在多雨地区发生流行，主要感病品种为库克笔花豆和格拉姆笔花豆。The studies of the pathogen reveal that the anthracnose in stylosanthes spp.was caused by Colletotrichum gloeosporioides penz.The optimum co-mditions for the growth and development of the pathogen were: temperatu-re,28℃; relative humidity,100%;and pH,6 to 7.Continuous light inh-ibited while darkness favoured the growth and sporulation of the pathogen and the conidiospores grew and germinated better in glucose.The anthrac-nose caused by this pathogen was found prevalent in rainy regions.The most susceptible genotypes include stylosanthes guianensis cv.Cook and S.guianensis cv.Grahum.

关 键 词：笔花豆 生物学特性 流行条件 炭疽病菌 

分 类 号：S435.4[农业科学—农业昆虫与害虫防治]