油棕病害调查及叶部病害的病原真菌初步鉴定

通过对海南省海口、儋州、文昌、陵水和定安以及广东省江门油棕病害的调查,结果表明,发生最为常见的病害为叶斑病,不同品种受害程度表现不同;发生严重时,可导致叶片30％以上枯死.对从热科院橡胶所引种到广东江门的12个油棕新品种田间叶斑病的病害严重度进行调查,其危害等级为1～3级,分离纯化和初步鉴定结果表明,有6种病原物,分别为叶点霉属（Phyllosticta）、炭疽菌属（Colletotrichum）、链隔孢属（Alternaria）、拟茎点霉属（Phomopsis）、茎点霉属（Phoma）和拟盘多毛孢属（Pestalotiopsis）.对6种病原物进行田间活体致病性测定,发现炭疽菌属和链隔孢属引...

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Published in广东农业科学 Vol. 41; no. 14; pp. 66 - 69
Main Author 郑丽 沈会芳 李静 何时雨 曾宪海 冯朝阳 覃新导 谢昌平
Format Journal Article
LanguageChinese
Published 中国热带农业科学院广州实验站/中国热带农业科学院热带能源生态研究中心,广东广州,510140%广东省农科院植物保护研究所,广东广州,510640%中国热带农业科学院橡胶研究所,海南儋州,571737%海南大学环境与植物保护学院,海南海口,570228 2014
Subjects
油棕
病害调查
致病性测定
鉴定
致病性测定
油棕
病害调查
鉴定
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ISSN1004-874X

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Summary:通过对海南省海口、儋州、文昌、陵水和定安以及广东省江门油棕病害的调查,结果表明,发生最为常见的病害为叶斑病,不同品种受害程度表现不同;发生严重时,可导致叶片30％以上枯死.对从热科院橡胶所引种到广东江门的12个油棕新品种田间叶斑病的病害严重度进行调查,其危害等级为1～3级,分离纯化和初步鉴定结果表明,有6种病原物,分别为叶点霉属（Phyllosticta）、炭疽菌属（Colletotrichum）、链隔孢属（Alternaria）、拟茎点霉属（Phomopsis）、茎点霉属（Phoma）和拟盘多毛孢属（Pestalotiopsis）.对6种病原物进行田间活体致病性测定,发现炭疽菌属和链隔孢属引起的病斑较小,致病力较弱,推测可能是腐生菌;叶点霉属、拟茎点霉属、茎点霉属和拟盘多毛孢属可同时侵染RYL31,其中叶点霉属还可侵染RYL14、RYL33,推测此病原物寄生性较强.
Bibliography:44-1267/S
oil palm; disease investigation; pathogenic test; identification.
ZHENG Li, SHEN Hui-fang, LI Jing, HE Shi-yu, ZENG Xian-hai, FENG Chao-yang, Qin Xin-dao, XIE Chang-ping （1. Guangzhou Experimental Station/Tropical Energy and Ecology Research Centre, Chinese Academy of Tropical Agricultural Sciences, Guangzhou 510140, China; 2. Institute of Plant Protection, Guangdong Academy of A gricultural Sciences, Guangzhou 510640, China; 3. Rubber Research Institute, Chinese Academy of Tropical Agricultural Sciences, Danzhou 571737, China; 4. College of Environment and Plant Protection, Hainan University, Haikou 570228, China）
Through the investigation of oil palm disease in Haikou, Danzhou, Wenchang, Lingshui, Ding＇an and Guangdong Jiangmen, it showed that the most common disease was leaf spot, and different varieties suffering this disease performed differently; when serious, it could lead to more than 30% exsciceation of leaves. In this paper, the field severities of leaf spot of 12 kinds oil palm were investig
ISSN:1004-874X