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| 贵州西部气象因子对马铃薯晚疫病发生流行的影响研究及对策 | |
| 引用本文： | 池再香,卢瑶,胡秋排,汤苾,张润琼.贵州西部气象因子对马铃薯晚疫病发生流行的影响研究及对策[J].西南农业学报,2009,22(6). |
| 作者姓名： | 池再香 卢瑶 胡秋排 汤苾 张润琼 |
| 作者单位： | 1. 贵州省六盘水市气象局,贵州,六盘水,553001 2. 贵州省六盘水市农业局,贵州,六盘水,553001 3. 贵州省气象局,贵州,贵阳,550002 |
| 基金项目： | 中国气象局气象科技扶贫项目，贵州省气象局开放型基金，六盘水市科技局马铃薯专项项目 |
| 摘 要： | 为抗马铃薯晚疫病品种的选育、生产布局以及选择防治的最佳时机提供参考,根据2007和2008年在贵州西部地区水城的玉舍(海拔1950 m)、盘县的四格(海拔2250 m)和六枝的堕却(海拔1610 m)各3期的马铃薯晚疫病发生程度的地理分期播种试验资料,对贵州西部地区马铃薯晚疫病发生、流行的气象因子和动态特征进行了研究,结果表明:马铃薯晚疫病发生、流行的主要时期在5月下旬至7月上旬;5月上旬至中旬,若日平均温度低于20 ℃,且连续3 d相对湿度超过75 %,同时连续降雨日超过5 d的情况下,一般在15～20 d后有晚疫病发生、流行.因此,建议以此作为马铃薯晚疫病防治的预警指标,以便在预警指标出现后的3 d内积极组织防治,以提高防治效果. |
| 关 键 词： | 气象因子 马铃薯晚疫病 发生流行 对策 贵州 |
Influence of Meteorological Factors on Occurrence and Epidemic of Potato Late Blight in Western Guizhou |
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| CHI Zai-xiang,LU Yao,HU Qiu-ling,TANG Bi,ZHANG Run-qiong.Influence of Meteorological Factors on Occurrence and Epidemic of Potato Late Blight in Western Guizhou[J].Southwest China Journal of Agricultural Sciences,2009,22(6). | |
| Authors: | CHI Zai-xiang LU Yao HU Qiu-ling TANG Bi ZHANG Run-qiong |
| Abstract: | The meteorological factors affecting occurrence and epidemic of potato late blight and the dynamic characteristics were studied by analyzing potato experimental results from Yushe(alt. 1950m), Sige(alt. 2250m) and Duoque(alt.1610m) of Western Guizhou to provide a reference for breeding of potato varieties with late blight resistance, production arrangement and optimum time to control potato late blight. The results showed that the main occurrence and epidemic period of potato late blight was from the last ten-day period of May to first ten-day period of July. When the mean daily temperature was below 20 ℃, the relative humidity of continued 3d was above 75 % and the days of continued rainfall was above 5 d, potato late blight would occur in 15-20 days, and the occurrence condition of potato late blight could be used as the warning index for controlling potato late blight to improve its control effect. |
| Keywords: | Meteorological factor Potato late blight Occurrence and epidemic Countermeasure Guizhou |
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