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| 云南省玉米灰斑病发生规律研究 | |
| 引用本文： | 周惠萍,吴景芝,李月秋,赵文华,肖文祥,吴毅歆,何月秋.云南省玉米灰斑病发生规律研究[J].西南农业学报,2011,24(6). |
| 作者姓名： | 周惠萍 吴景芝 李月秋 赵文华 肖文祥 吴毅歆 何月秋 |
| 作者单位： | 1. 云南农业大学生物多样性持续控制病虫害应用技术工程中心,云南昆明,650201 2. 大理州植保植检站,云南大理,671000 3. 红河州植保植检站,云南蒙自,661100 4. 保山市植保植检站,云南保山,678000 5. 云南农业大学农学与生物技术学院,云南昆明,650201 6. 云南农业大学生物多样性持续控制病虫害应用技术工程中心,云南昆明650201;云南农业大学农学与生物技术学院,云南昆明650201 |
| 基金项目： | 云南省支撑计划项目(2006NG19); 云南省农业产业技术体系项目 |
| 摘 要： | 灰斑病是云南省玉米叶部病害之一,严重地制约着玉米产量.通过田间定点系统调查和人工接种鉴定,证明云南省玉米灰斑病的始发期为6月上旬至7月下旬,在玉米抽雄吐丝至成熟期的8月中旬至9月下旬迅速暴发流行.同一品种随着海拔增高病情加重,特别是在海拔1800 m以上,产量损失最大.海拔1500 ～ 1800 m区域次之,海拔1500 m以下区域发病较轻.病原菌主要以分生孢子在地表的病残体上越冬.抗病品种少,中抗以上品种仅15.78％.日平均气温在20℃以上,相对湿度80％以上,有利于病害的发生.提早播期有减轻病害的作用. |
| 关 键 词： | 玉米灰斑病 流行规律 云南 |
Epidemic of Gray Leaf Spot of Maize in Yunnan Province |
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| ZHOU Hui-ping , WU Jing-zhi , LI Yue-qiu , ZHAO Wen-hua , XIAO Wen-xiang , WU Yi-xin , HE Yue-qiu.Epidemic of Gray Leaf Spot of Maize in Yunnan Province[J].Southwest China Journal of Agricultural Sciences,2011,24(6). | |
| Authors: | ZHOU Hui-ping WU Jing-zhi LI Yue-qiu ZHAO Wen-hua XIAO Wen-xiang WU Yi-xin HE Yue-qiu |
| Institution: | ZHOU Hui-ping1,WU Jing-zhi1,LI Yue-qiu2,ZHAO Wen-hua3,XIAO Wen-xiang4,WU Yi-xin5,HE Yue-qiu1,5*(1.Engineering Center for Applied Technology for Pests Control by Agro-biodiversity,Yunnan Agricultural University(YAU),Yunnan Kunming 650201,China,2.Plant Protection and Quarantine Station of Dali Prefecture,Yunnan Dali 671000,3.Plant Protection and Quarantine Station of Honghe Prefecture,Yunnan Mengzi 661100,4.Station of Plant Protection & Quarantine of Baoshan,Yunnan Baoshan 678000,5.Faculty o... |
| Abstract: | Gray leaf spot of maize,caused by Cercospora zeae-maydis,became one of the most serious foliar and significant yield-limiting diseases of maize in Yunnan province.According to the field survey and artificial inoculation,the disease occurred from early June to late-July,and became rapidly epidemic in mid-August to late-September with maize tasseling and maturing.Disease severity was different depending on altitudes.The pathogen overwintered in the infected corn residues remaining on the soil surface.The resi... |
| Keywords: | Gray leaf spot of maize Epidemic Yunnan province |
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