| 胡国强1,2, 邓 梅1*, 伍智文1, 朱倩霞3, 胡英超1.湘中地区五(4)代稻纵卷叶螟发生为害与气象条件的关系[J].植物保护,2016,42(5):92-96. |
| 湘中地区五(4)代稻纵卷叶螟发生为害与气象条件的关系 |
| The relationship between the occurrence of the fourth generation of Cnaphalocrocis medinalis (Guenée) and meteorological conditions in central Hunan Province |
| 投稿时间：2015-10-09 修订日期：2015-11-25 |
| DOI： |
| 中文关键词: 稻纵卷叶螟 气象条件 相关分析 通径分析 蛾高峰期 |
| 英文关键词:Cnaphalocrocis medinalis weather conditions correlation analysis path analysis moth peak time |
| 基金项目:湖南省气象局科技项目(XQKJ15B091) |
|
| 摘要点击次数: 818 |
| 全文下载次数: 1343 |
| 中文摘要: |
| 为探明湖南省中部地区五(4)代稻纵卷叶螟的发生与气象条件的关系。本文利用娄底市2007-2014年期间稻纵卷叶螟的观测数据和气象数据，采用相关性分析和通径分析等方法，分析了五(4)代稻纵卷叶螟发生的气象特征，并建立了五(4)代稻纵卷叶螟发生程度的预测模型。研究结果表明:温湿系数、相对湿度、日平均气温以及降水日数是影响五(4)代稻纵卷叶螟发生的主导决定因子，其中温湿系数的直接和间接作用最大，表明五(4)代稻纵卷叶螟对温度和湿度有较高的要求; 五(4)代稻纵卷叶螟蛾高峰期出现的适宜气象条件为:温湿系数大于2.4，气温26~30℃，相对湿度在80%以上，且蛾高峰期出现的前两天和当天有降水的概率为88.9%。本文研究结果可为湖南省中部地区稻纵卷叶螟的准确测报和科学防控提供参考。 |
| 英文摘要: |
| In order to investigate the correlation between the occurrence of the fourth generation of Cnaphalocrocis medinalis (Guenée) and meteorological conditions in central Hunan Province, eight years’ data (2007-2014) of Loudi District, Hunan Province were collected, and correlation and path analysis methods were used. The results showed that: Firstly, temperature and humidity coefficient, relative humidity, average temperature and rainy day are the dominant determining factors affecting the occurrence of the fourth generation of C.medinalis; secondly, the direct and indirect effects of temperature and humidity coefficient are the maximum, suggesting that the fourth generation of C.medinalis was influenced significantly by temperature and humidity during the growth period; finally, the moth peak of the fourth generation of C.medinalis occurred when (i) temperature and humidity coefficient was greater than 2.4; (ii) the temperature was 26-30℃; (iii) relative humidity was above 80%, and (iv) the probability of precipitation two days before and the day at the moth peak was 88.9% |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
