| 地膜覆盖棉田枯萎病发生与气象因子的关系 |
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| 引用本文： | 易海艳,刘政,高峰,任毓忠,马江锋,李国英.地膜覆盖棉田枯萎病发生与气象因子的关系[J].新疆农业科学,2008,45(5):797. |
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| 作者姓名： | 易海艳 刘政 高峰 任毓忠 马江锋 李国英 |
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| 作者单位： | 石河子大学植保系/新疆生产建设兵团绿洲生态农业重点实验室,新疆石河子,832003 |
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| 摘 要： | 通过4年病情系统调查和气象因子分析,查明新疆地膜棉田枯萎病的发生和内地一样有两个明显的发病高峰,并且与气温、降雨有十分密切的关系,但在地膜植棉的情况下,其发病比内地明显提前,当连续5 d的平均气温达14℃左右,田间开始陆续出现病苗, 当连续5 d的平均气温达20℃左右,进入迅速发病期,很快出现第一个发病高峰;当连续5 d的平均气温达24℃以上,则进入病情减轻或高温隐症期;7月下旬或8月上旬随温度下降,病情又有所回升,进入第二个发病高峰.降雨与棉花枯萎病的发生也有一定的关系,在6月15日以前,累计降雨量越大的年份,枯萎病发生也越严重.
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| 关 键 词： | 棉花 枯萎病 气象因子 相关性 |
| 收稿时间： | 2008-05-25 |
The Relationships between Occurrence of Cotton Mulched with Plastic Film Fusarium wilt and Meteorological Factors |
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| YI Hai-yan,LIU Zheng,GAO Feng,REN Yu-zhong,MA Jiang-feng,LI Guo-ying.The Relationships between Occurrence of Cotton Mulched with Plastic Film Fusarium wilt and Meteorological Factors[J].Xinjiang Agricultural Sciences,2008,45(5):797. |
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| Authors: | YI Hai-yan LIU Zheng GAO Feng REN Yu-zhong MA Jiang-feng LI Guo-ying |
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| Abstract: | Cotton Fusarium wilt had two obvious peaks with mulched plastic film cotton in Xinjiang,the same as other provinces,based on investigation and analysis of the disease from 2003 to 2007.The disease had close relationship with the temperature and rainfall when average temperature of five days in succession was about 14℃,20℃and above 24℃,disease was relieved.The disease occurred again with temperature dropping during the last ten-day period of July 20th and the frist ten-day period of August.Rainfall had relations with cotton Fusarium wilt to a certain degree too,the more rainfall we had,the more serious disease occurred before June 15th. |
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| Keywords: | cotton cotton Fusarium wilt meteorological factors correlation |
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