欢迎访问《应用生态学报》官方网站,今天是 分享到:

应用生态学报 ›› 1995, Vol. 6 ›› Issue (1): 56-60.

• 研究论文 • 上一篇    下一篇

核型多角体病毒对宿主昆虫致死速率与温度关系的数学模拟

叶恭银, 胡萃, 陆晨音, 李子川   

  1. 浙江农业大学, 杭州 310029
  • 收稿日期:1992-10-21 修回日期:1993-03-01 出版日期:1995-01-25 发布日期:1995-01-25
  • 基金资助:

    国家自然科学基金;杭州市科委重大资助项目

Mathematical simulation on relatiouship of mean lethal rate of nuclear polybedrosis virus to its host insect and temperature

Ye Gongyin, Hu Cui, Lu Chenyin, Li Zichuan   

  1. Zhejiang Agricultural University, Hangzhon 310029
  • Received:1992-10-21 Revised:1993-03-01 Online:1995-01-25 Published:1995-01-25

摘要: 提出了核型多角体病毒(NPV)对宿主幼虫平均致死速率[V(T)]与温度关系的数学模型,即V(T)=ρ(25℃)T/T25exp △HA/R (1/T25-1/T] / 1+exp[△HH/R (1+T1/2H-1/T)] 式中T25和R各为298.15°K和8.314J·K-1·mol-1;ρ(25℃)、△HA、△HH和T1/2H为待定参数。该模型能很好地描述茶尺蠖NPV感染各龄初幼虫后,平均致死速率与温度的关系;也适于描述美洲棉铃虫、大蜡螟和黎豆夜娥等NPV对各自宿主幼虫的平均致死速率与温度的关系。

关键词: 温度, 致死速率, 宿主幼虫, 核型多角体病毒, 数学模型

Abstract: In this paper, the mathematical model describing the relationship of mean lethal rate V(T) of nuclear polyhedrosis virus (NPV) to its host larvae and temperature (T) is drawnas follows: V(T)=ρ(25℃)T/T25exp △HA/R (1/T25-1/T] / 1+exp[△HH/R (1+T1/2H-1/T)] of which, T25 and R are 298.15°K and 8.314J·K-1·mol-1; respectively, and P(25℃),△HA, △HH and T1/2H are unknown parameters.The model can well fit to describe therelationship of mean lethal rate of NPV from tea geometrid Ectropis obliqua hypulina to its host larvae infected with the virus at the beginning of each instar and temperature.Itis also fit to simulate the relationship between V(T) and T of Heliothis zea NPV, Calleria mellonella NPV and Anticarsia gemmatalis NPV to their host larvae, respectively.

Key words: Lethal rate, Host larvae, Nuclear polyhedrosis virus, Mathematical model, Temperature