江苏沿江棉区棉铃虫世代增殖规律及主害代预测技术
Population dynamics of cotton bollworm and the forecasting technique of the principal damaging generation in Yanjiang,Jiangsu Province.
杨燕涛;张洪进;杨慕林;朱明华;王东华
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DOI：10.7679/j.issn.2095-1353.2001.010
作者单位：江苏省通州市植保站,通州226300
中文关键词：棉铃虫;种群动态;预测模型
英文关键词：Helicoverpa armigera;population dynamics;forecasting model
中文摘要：通过聚类分析 ,可将沿江棉区历年棉铃虫世代间的增殖状况划分为 4类 ,相应的主害代第4代棉铃虫的发生类型依次属于迟发适生型、早发暴发型、基数 -天气制约型和基数制约型。分析各类成因发现 ,3代基数是影响 4代发生量的主要因子。运用逐步回归分析 ,组建了4代棉铃虫发生期和发
英文摘要：The status of multiplication between generations of cotton bollworm,Helicoverpa armigera,could be classified to four types in Yanjiang area by clustering analysis.Correspondingly,the occurrence of the 4th generation was in the following types:the l