| 玉米粗缩病发病叶龄与主要为害性状的相关性分析 |
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| 引用本文： | 邸垫平,苗洪芹,路银贵,田兰芝.玉米粗缩病发病叶龄与主要为害性状的相关性分析[J].河北农业科学,2008,12(1):51-52,60. |
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| 作者姓名： | 邸垫平 苗洪芹 路银贵 田兰芝 |
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| 作者单位： | 河北省农林科学院植物保护研究所,河北省农业有害生物综合防治工程技术研究中心,河北,保定,071000 |
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| 基金项目： | 河北省农林科学院科研课题 |
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| 摘 要： | 对玉米粗缩病进行了系统的田间调查，分析了发病叶龄与玉米粗缩病主要为害性状的关系。结果表明：玉米在其生育期内均可感病，发病越早，病情越重，9叶期后发病症状显著减轻。发病叶龄与玉米粗缩病的严重度（r=-0．938，P〈0．01）、株高（r=0．884，P〈0．01）、穗粒重（r=-0．823，P〈0．01）密切相关。
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| 关 键 词： | 玉米粗缩病 发病叶龄 为害 相关分析 |
| 文章编号： | 1008-1631（2008）01-0051-02 |
| 收稿时间： | 2007-09-17 |
| 修稿时间： | 2007年9月17日 |
Analysis of the Correlations between the Symptomatic Leaf Age and the Severity of Maize Rough Dwarf Disease |
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| DI Dian-ping,MIAO Hong-qin,LU Yin-gui,TIAN Lan-zhi.Analysis of the Correlations between the Symptomatic Leaf Age and the Severity of Maize Rough Dwarf Disease[J].Journal of Hebei Agricultural Sciences,2008,12(1):51-52,60. |
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| Authors: | DI Dian-ping MIAO Hong-qin LU Yin-gui TIAN Lan-zhi |
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| Institution: | ( Institute of Plant Protection, Hebei Academy of Agriculture and Forestry Sciences, IPM Centre of Hebei Province, Baoding 071000, China) |
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| Abstract: | Maize rough dwarf was systemically investigated and analyzed.The results showed that in the field maize could be infected from the 3rd leaf to the 17th leaf and the more serious symptoms were induced by the early infection.The symptoms would be alleviated observably after 9-leaf age infected.The correlation analysis indicated that the symptomatic leaf age was related to the disease grade(r=-0.938,P<0.01),the disease plant high(r=0.884,P<0.01) and the weight of spike grain(r=-0.823,P<0.01) significantly. |
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| Keywords: | Maize rough dwarf Symptomatic leaf age Severity Correlation analysis |
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