| 气候条件对油菜菌核病的影响及防治阈值 |
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| 引用本文： | 张永泰,李爱民,惠飞虎,房风珠.气候条件对油菜菌核病的影响及防治阈值[J].植物保护学报,1999,26(2):125-128. |
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| 作者姓名： | 张永泰 李爱民 惠飞虎 房风珠 |
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| 作者单位： | [1]江苏里下河地区农科所 [2]江苏省兴化市农业局 |
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| 摘 要： | 油菜菌核病是里相河农下区首要病害，常年发病指数约２０％，损失产量１５％－３０％。对兴化，扬州油菜菌核病连续８年的观测结果表明，油菜开花期的降雨量是导致并加重菌核病的决定因素，而日均气温对菌核病的影响不大。
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| 关 键 词： | 油菜 菌核病 降雨量 防治阈值 气候条件 病害 |
EFFECT OF WHETHER ON SCLEROTIORUM OF RAPE AND THRESHOLD OF CONTROL |
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| Zhang Yongtai,Li Aimin Hui,Feihu and Fang Fengzhu.EFFECT OF WHETHER ON SCLEROTIORUM OF RAPE AND THRESHOLD OF CONTROL[J].Acta Phytophylacica Sinica,1999,26(2):125-128. |
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| Authors: | Zhang Yongtai Li Aimin Hui Feihu and Fang Fengzhu |
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| Institution: | Lixiahe Institute of Agricultural Sciences, Yangzhou 225002,Lixiahe Institute of Agricultural Sciences, Yangzhou 225002,Lixiahe Institute of Agricultural Sciences, Yangzhou 225002 and Agricultural Bureau of Xinghua County, Xinghua |
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| Abstract: | Sclerotinia sclerotiorum (Lib de Bary) in rape is a primary disease. The annual incidence was about 20% and the yield loss caused was 15% -30% in Lixiahe area. The 8 year consecutive survey indicates that the rainfall in rape's flowering stage was a critical factor to the development and the rising of sclerotiorum in Xinghua and Yangzhou. The day mean temperature had little impact on the disease. The relationship between rainfall and the disease index can be described by equation y = 4. 8679 0. 4201x. The disease not only reduced the weight of one thousand oilseeds and the yield but also decreased the content of oil in oilseed and affected the quality. The control threshold was discussed. |
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| Keywords: | rape sclerotiorum rainfall yield control threshold |
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