油桐枯萎病病原鉴定及其生物学特性研究  

Pathogen Identification and Biological Characteristics of Tungoil Tree Pestilence

作　　者：徐红梅[1] 曾祥福[1,2,3,4] 邓先珍[1,2,3,4] 杜洋文[1,2,3,4] 

机构地区：[1]湖北省林业科学研究院,武汉430075 [2]湖北省木本粮油林工程技术研究中心,武汉430075 [3]大别山特色资源开发湖北省协同创新中心,黄冈438000 [4]经济林木种质改良与资源综合利用湖北省重点实验室,武汉430075

出　　处：《湖北林业科技》2016年第5期42-45,共4页Hubei Forestry Science and Technology

基　　金：林业公益性行业科研专项经费项目"武陵山油桐良种集约经营技术集成示范"(201304707)

摘　　要：本研究对湖北省武陵山区油桐枯萎病进行了病原菌分离与鉴定、致病性测定、病原菌生物学特性等研究。结果表明：油桐枯萎病病原菌为尖镰孢。该病原菌在10~40℃温度范围均能生长,最适生在温度为25~30℃;在酸性、中性和碱性土壤条件下均能生长,但在弱酸性条件下生长最好。该病原菌能利用环境中的多种碳源和氮源。室内毒力测定结果表明,5种供试杀菌剂对病原菌抑菌效果不同,50%多菌灵超微可湿性粉剂抑菌率最高。Pathogen identification and biological characteristics of Tungoil Tree Pestilence in Wuling Mountainous Area in Hubei Province was studied in this paper.It showed Fusariumoxysporum was the pathogen.The mycelia could grow in the temperature ranging from10℃ to 40℃,and optimum temperature ranged from25 ℃ to 30 ℃.The pathogen could grow in acid,neutal and alkaline soil with the highest growth in weak acid soil.The pathogen could absorb many kinds of carbon and nithogen source in the enviroment.Toxicity of five kinds of fungicides to the pathogen was tested in the lab.Different fungicides inhibit the growth of mycelia in different levels,and 50% carbendazim WP showed best effect.

关 键 词：油桐 病原鉴定 生物学特性 毒力测定 

分 类 号：S763.1[农业科学—森林保护学]