| 第4代白背飞虱与第5代褐飞虱发生程度及发生期预测模型 |
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| 引用本文： | 李大庆,杨再学,谈孝凤.第4代白背飞虱与第5代褐飞虱发生程度及发生期预测模型[J].贵州农业科学,2009,37(12). |
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| 作者姓名： | 李大庆 杨再学 谈孝凤 |
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| 作者单位： | 1. 贵州省余庆县植保植检站,贵州,余庆,564400
2. 贵州省植保植检站,贵州,贵阳,550001 |
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| 基金项目： | 贵州省科技厅带帽项目"贵州省主要农作物病虫害预测预报及防控技术研究" |
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| 摘 要： | 对余庆县1993-2008年稻飞虱测报资料筛选分析,建立了第4代白背飞虱发生程度、低龄若虫盛发期的预测模型(=-7.764 01+0.001 25x1+0.001 26x2+0.113 08x3±Sy/12=1.181 8,=9.958 0+1.042 0x±Sy/x=1.284 8)和第5代褐飞虱发生程度、低龄若虫盛发期的预测模型(=1.178 3+0.001 5x1+0.001 4x2+0.002 0x3±Sy/12=0.587 0,=7.936 5+1.634 9x±Sy/x=2.807 1).利用该回归模型可提前10～15 d对其发生程度和低龄若虫盛发期进行预测预报,且结果较为准确.
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| 关 键 词： | 稻飞虱 发生程度 发生期 预测模型 |
Occurrence of 4th Generation White-backed Plant-hopper and 5th Generation Brown Plant-hopper and the Occurrence Prediction Model |
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| LI Da-qing,YANG Zai-xue,TAN Xiao-feng.Occurrence of 4th Generation White-backed Plant-hopper and 5th Generation Brown Plant-hopper and the Occurrence Prediction Model[J].Guizhou Agricultural Sciences,2009,37(12). |
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| Authors: | LI Da-qing YANG Zai-xue TAN Xiao-feng |
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| Abstract: | Occurrence of 4th generation, young age larvae broadcasting model of whit-back plant-hopper, Occurrence of 5th generation, young age larvae broadcasting model of brown plant-hopper were established based on the selection and analysis of broadcasting data of rice plant-hopper in Yuqing county from 1993 to 2008. The regression model could precisely predict and broadcast the occurrence and young larva emerging time 10～15 days before. |
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| Keywords: | rice plant to hopper occurrence emergence period prediction model |
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