大蒲葵叶斑病病原生物学特性研究  

Studies on Biological Characteristics of Pathogen of Leaf Spot on Livistona saribus

作　　者：唐庆华[1] 宋薇薇[1] 余凤玉[1] 朱辉[1] 牛晓庆[1] 韩超文[1] 吴多扬[1] 覃伟权[1] 

机构地区：[1]中国热带农业科学院椰子研究所海南省热带油料作物生物学重点实验室,海南文昌571339

出　　处：《江西农业学报》2011年第11期109-110,共2页Acta Agriculturae Jiangxi

基　　金：公益性行业(农业)科研专项项目(200903026);中央级公益性科研院所基本科研业务费专项(2008hzs1J023;2009hzs1J029);海南省重点项目"槟榔黄化病防控技术研究与示范"(090106)

摘　　要：对引起大蒲葵叶斑病的拟盘多毛孢(Pestalotiopsis neglecta)进行了生物学特性和形态学研究,结果表明该菌在10～30℃范围内均可生长,最适生长温度为25℃;该菌适宜在偏酸性基质中生长,最适pH值为5;供试碳源对菌丝生长的影响不显著,供试氮源中磷酸二氢铵较有利于菌丝生长。The biological characteristics and morphology of Pestalotiopsis neglecta,which could lead to leaf spot of Livistona saribus,were studied.The results showed that this pathogen could grow at the temperature from 10 ℃ to 30 ℃,and the optimum temperature for the growth was 25 ℃.It was suitable for Pestalotiopsis neglecta to grow in the nearly-acid substrate,and the optimum pH-value was 5.The tested carbon source had no significant influence on the hyphal growth,and among the tested nitrogen sources,ammonium dihydrogen phosphate was beneficial to the hyphal growth.

关 键 词：大蒲葵 叶斑病 拟盘多毛孢 生物学特性 

分 类 号：S436.8[农业科学—农业昆虫与害虫防治]