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1993~1995年,在湖北荆州市农科所棉花黄萎病重病田,定点定株调查黄萎病情,并与当年气象因子进行相关分析,结果表明7、8月份气温高低是影响棉花黄萎病发病轻重的关键因子。旬平均气温高于28℃连续出现2~3旬,黄萎病受到明显控制。28℃以上的旬平均气温出现次数越多,黄萎病越轻。1993年为低温重病年,1995年为高温轻病年
From 1993 to 1995, we investigated the incidence of Verticillium wilt in cotton from Verticillium dahliae of the Institute of Crop Science of Jingzhou, Hubei, and analyzed the correlation with the meteorological factors of that year. The results showed that the temperature in July and August was the main cause of Verticillium wilt The incidence of severity of the key factors. Ten days average temperature is higher than 28 ℃ for 2 to 3 consecutive days, Verticillium wilt subject to significant control. The average number of ten-day average temperatures above 28 ℃ appears more, the less the Verticillium wilt. The year of 1993 was a serious illness of low temperature, and the year of 1995 was a year of high temperature and light illness