安徽农业大学学报2018，Vol.45Issue(1)：195-200,6.DOI:10.13610/j.cnki.1672-352x.20180302.025
石榴叶斑病球毛壳菌生长习性及杀菌剂筛选
Growth characteristics of mycelia of Chaetomium globusum causing pomegranate leaf spot disease and fungicides screening
摘要
Abstract
Biological characteristics and effective fungicide of Chaetomium globosum Kunze causing leaf spot disease on pomegranate were studied using mycelia growth rate method.The results showed that the mycelia of C.globosum could grow under the temperature of 26-34℃.The suitable temperature was between 26℃ and 32 ℃ and the most suitable temperature was 28℃.The scope of suitable humidity was 75％-85％ and the most suitable humidity was 85％.Light promoted the mycelia growth.The mycelia of C.globosum could grow at pH4.5-7.5 and the optimal pH was 6.5.The effects of different carbon and nitrogen sources on mycelia growth were significant.Maltose and peptone obviously promoted the growth of mycelia.Furthermore,three fungicides including 75％ chlorothalonil,80％ thiophanate-methyl and 80％ mancozeb,as well as three plant extracts including Asarum sieboldii Miq.,Jatropha curcas L.and Nerium indicum Mill.,were used to test fungicide resistance of C.globosum.As a result,80％ thiophanate-methyl was identified as the most effective fungicide and 4 mg·mL-1 of A.sieboldii extract was the most effective compound for C.globosum control,which can provide some references for chemical control of C.globosum in practice.关键词
石榴/叶斑病/球毛壳菌/生物学特性/杀菌剂/植物提取液Key words
pomegranate/leaf spot disease/Chaetomium globosum Kunze/biological characteristics/fungicides/plant extracts分类
农业科技引用本文复制引用
杨丽芬,朱心,周春香,杨建,雷恩,程加省,孔垂思,郭建伟..石榴叶斑病球毛壳菌生长习性及杀菌剂筛选[J].安徽农业大学学报,2018,45(1):195-200,6.基金项目
红河学院中青年学术骨干人才培养计划(2015GG0206),红河学院博士科研启动专项(XJ15B16),红河学院应用型研究项目(XJY15Y02),中山大学广东省热带亚热带植物资源重点实验室开放课题(PlantKF201503),红河学院植物保护一级学科硕士点建设项目和国家重点研发计划项目(天山北坡退化野果林生态保育与健康调控技术,2016YFC0501500)共同资助. （2015GG0206）
