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1997年做了田间试验用来评价影响马铃薯晚疫病流行的关键天气条件。在Reckenholz做了 2个试验研究晚疫病的潜伏期和侵染速率。结果表明 ,当累计有效积温达到 2 34 6 5℃·h时 ,孢子囊开始在马铃薯叶片出现。温度是影响晚疫病流行的重要因子。病害侵染的重要条件是温度超过 10℃并且在连续 6h内空气相对湿度大于 90 %。降雨在病害传播中发挥了重要作用。根据PhytoPRE和CWC两个决策支持系统所采取的病害防治取得了较好的病害防治效果
Field trials were conducted in 1997 to assess the critical weather conditions affecting the late blight epidemic in potatoes. Two experiments were conducted at Reckenholz to study the latency and rate of late blight. The results showed that the sporocysts began to appear in potato leaves when the cumulative effective accumulated temperature reached 2 34 6 5 ℃ · h. Temperature is an important factor affecting the epidemic of late blight. Important conditions for disease infestation are temperatures in excess of 10 ° C and air relative humidity greater than 90% for 6 consecutive hours. Rainfall has played an important role in disease transmission. According to PhytoPRE and CWC two decision support systems taken by the disease prevention and control achieved good disease control effect