| 玉米大斑病菌对广州地区甜玉米的致病性观测 |
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| 引用本文： | 周伯扬; 谢伟烈,谢壮锋; 特拉康.玉米大斑病菌对广州地区甜玉米的致病性观测[J].玉米科学,2004,12(1):090-092. |
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| 作者姓名： | 周伯扬; 谢伟烈 谢壮锋; 特拉康 |
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| 作者单位： | 1. 广州市白云区农业局植保总站,广州,510405
2. 华南农业大学资源环境学院,广州,510642 |
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| 摘 要： | 通过对桂甜和华珍两个甜玉米品种的玉米大斑病病斑扩展速率及病情指数的研究结果表明,不同品种对玉米大斑病菌的抗性存在明显的差异;病斑的产孢特性显示,病斑首次产孢量显著高于再次产孢量。通过比较不同温度下的菌丝生长量,分析出广州地区玉米大斑病菌的主要构成属于高温型。
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| 关 键 词： | 玉米大斑病 病斑扩展速率 病情指数 |
| 文章编号： | 1005-0906(2004)01-0090-03 |
| 收稿时间： | 2003/4/20 0:00:00 |
| 修稿时间： | 2003年4月20日 |
Observation on Pathogenicity of Pathogen of Leaf Blight of Corn in Suburbs of Guangzhou City |
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| ZHOU Bo-yang; XIE Wei-lie and XIE Zhuang-feng; TE La-kang.Observation on Pathogenicity of Pathogen of Leaf Blight of Corn in Suburbs of Guangzhou City[J].Journal of Maize Sciences,2004,12(1):090-092. |
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| Authors: | ZHOU Bo-yang; XIE Wei-lie and XIE Zhuang-feng; TE La-kang |
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| Abstract: | Observation on expanding rate of lesion and developing of disease index of leaf blight of corn caused by Exserohilum turcicum on two corn race,Huazhen and Guitian,carried out by fixed-point on field.The result showed that there is visibly difference.The resistance of Huazhen to leaf blight of corn is stronger than Guitian.Inspection on spore-bearing characteristic of leaf lesion have perfomed on field and indoors.Data indicate spore number beared at first time sighficantly more than that after.The comparison of weight of hyphae growing among strains shows that constitution of strains caused leaf blight of corn in Guangzhou belongs to type of fungi adapted to high temperature. |
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| Keywords: | Exserohilum turcicum Expanding rate of lesion Disease index |
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