基于正弦函数拟合估算新疆棉铃虫及棉蚜的发生代数  

Estimation of Generations of Helicoverpa amigera (Hübner) and Aphis gossypii (Glover) in Xinjiang Based on Single Sine Model

作　　者：苗伟[1] 郭忠勇[2] 吕昭智[2] 于江南[1] 王登元[1] 

机构地区：[1]新疆农业大学农学院,新疆乌鲁木齐830052 [2]中国科学院新疆生态与地理研究所,新疆乌鲁木齐830011

出　　处：《新疆农业科学》2006年第3期186-188,共3页Xinjiang Agricultural Sciences

基　　金：新疆维吾尔自治区科技厅重点项目;兵团博士基金项目

摘　　要：以每年的1月1日起为日度计算起始日,以棉铃虫、棉蚜的物候学发育起点温度和发育上限温度为基准,利用单sine函数方法和日期预测法估算出新疆棉铃虫和棉蚜的发生代数.结果表明：棉铃虫和棉蚜在新疆分别可以发育完成3～4代和25～35代,地区之间的温度差异决定了棉铃虫和棉蚜在新疆不同地区发育代数不同.The paper makes use of the first day of January as the starting day and the temperature threshold and upper temperature threshold of Helicoverpa armigera Hübner and Aphid gossypii Glover as a standard and also the method of single sine and calendar prediction to estimate the generations of Helicoverpa armigera Hübner and Aphid gossypii Glover every year in the above ten areas, to predict accurately their occurrence. As the results show： Helicovpera armigera Hübner and Aphid gossypii Glover respectively complete 3～4 cycles and 25～35 cycles （developing egg to adult）. Different number of generations of these insects depend on the difference of temperature in different areas.

关 键 词：棉铃虫 棉蚜 代数估算 新疆 

分 类 号：S11[农业科学—农业基础科学] S435.2