| 冯爱卿，汪文娟，曾列先，陈深，杨健源，苏菁，汪聪，朱小源.一种引致水稻稻叶褐条斑的病原鉴定初报[J].广东农业科学,2013,40(12):78-79 |
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一种引致水稻稻叶褐条斑的病原鉴定初报 |
| The preliminary report of a fungus pathogen causing the rice brown streak leaf spot |
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| DOI： |
| 中文关键词: 水稻 褐条斑 黑孢霉菌 病原鉴定 |
| 英文关键词: rice brown streak leaf spot Nigrospora oryzae(Berk.et Br.) petch Identification of the pathogen |
| 基金项目:国家现代农业产业技术体系建设专项（CARS-01-24）；广东省现代农业产业技术体系建设专项（粤财教[2009]356号） |
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| 中文摘要: |
| 对广东稻区近年来水稻生产上发生较为普遍的水稻稻叶褐条斑病进行了病原分离鉴定，根据柯赫氏法则，初步鉴定其致病病原菌为稻黑孢霉菌[Nigrospora oryzae（Berk.et Br.）petch]；其症状与水稻窄条斑病类似，主要见于水稻生长中后期，在叶面上形成黄褐至黑褐色的短细条状斑，严重时均可致全叶枯死，引起穗枯，谷粒结实差或不结实，造成水稻严重减产。对该病在广东主栽水稻上的发生症状、病原鉴别进行了详细描述，并对该病原菌在国内外不同寄主上发生、防治状况进行了综述。 |
| 英文摘要: |
| In this study, we performed the isolation and identification of the pathogen of rice brown streak leaf spot which occurscommonly in Guangdong cropping area in recent years. According to Koch's rule, we identified the causative pathogen which is [Nigrospora oryzae(Berk.et Br.) petch]. Its symptoms similar to rice narrow spot disease, mainly observed in the late growing stage of rice,short thin strips spots were formed on the leaf surface from tan to dark brown. The severe disease could cause the withered of whole leaf and ear, as well as the poor seeds production, and then the yield of rice can be severe reduced. Here we made a description of the disease symptoms and the pathogen identification which occurred on the mainly planted rice cultivars in Guangdong. Further, we reviewed the occurrence and the control condition of the pathogens on different hosts at China and abroad. |
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