| 玉米灰斑病发生趋势研究 |
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| 引用本文： | 李志勇,梅丽艳. 玉米灰斑病发生趋势研究[J]. 黑龙江农业科学, 2008, 0(5): 72-74 |
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| 作者姓名： | 李志勇 梅丽艳 |
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| 作者单位： | 黑龙江省农业科学院植物保护研究所,哈尔滨,150086 |
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| 摘 要： | 对玉米灰斑病在黑龙江省的发生情况进行了调查。结果表明：在2005～2007年调查的玉米品种中未发现对灰斑病免疫的品种;三个年度绝大多数品种的发病率都是100%,无年度差异;三年间病情指数大多数集中在10%～30%,属轻度发生,年度间差异不明显。
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| 关 键 词： | 玉米灰斑病 发病率 病情指数 |
Study on Investigation of Gray Leaf Spot of Maize in Heilongjiang Province |
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| LI Zhi-yong,MEI Li-yan. Study on Investigation of Gray Leaf Spot of Maize in Heilongjiang Province[J]. Heilongjiang Agricultural Science, 2008, 0(5): 72-74 |
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| Authors: | LI Zhi-yong MEI Li-yan |
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| Affiliation: | (Plant protection Institute of Heilongjiang Academy of Agricultural Sciences, Harbin 150086) |
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| Abstract: | The investigation was done about incidence of gray leaf spot of maize in Heilongjiang province. The results showed that immune maize variety was not been found in 2005,2006 and 2007 the incidences of vast majority maize varieties were 100%, there was no difference in three years; the disease index was mostly in 10% ～30% in three years. |
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| Keywords: | gray leaf spot of maize incidence disease index |
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