用非线性模型估测恒温和变温下棉铃虫蛹的发育率

被引:29
作者
吴坤君 [1 ]
龚佩瑜 [1 ]
阮永明 [1 ,2 ]
机构
[1] 中国科学院动物研究所
[2] 浙江师范大学化学与生命科学学院
关键词
棉铃虫; 蛹; 恒温; 变温; 线性模型; 非线性模型; 发育率; 估测;
D O I
10.16380/j.kcxb.2009.06.007
中图分类号
S433 [植物虫害及其防治]; Q96 [昆虫学];
学科分类号
090401 [植物病理学]; 090404 [昆虫学];
摘要
为了深入分析和探讨昆虫发育与环境温度的关系,在恒温(15~37℃)和交替变温(12/18~34/40℃)下测定了棉铃虫Helicoverpa armigera蛹的发育历期(d),分别用线性模型和非线性模型(Logan模型、Lactin模型和王氏模型)拟合其发育率(1/d)数据。结果表明,这3个非线性模型能更准确地描述发育率与温度之间的曲线关系,判定系数(R2)在0.9878~0.9991之间。对全部观测数据的进一步研究表明,只要有6个分布合适的观测数据,就可以用这些非线性模型获得相当满意的估测效果。如果缺乏高温下的测定数据,用非线性模型预测的昆虫发育率可能失真。分析了蛹在恒温和变温下发育率差异的可能原因,讨论了应用这3个非线性模型预测蛹期发育的优点和缺点,指出用非线性模型取代线性日.度模型进行害虫发生预测和益虫饲养管理的合理性和必要性。
引用
收藏
页码:640 / 650
页数:11
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