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Position: Home > Articles > Life Table of the Laboratory Population of Olethreutes leucaspis Meyrick at Different Temperatures Chinese Journal of Tropical Crops 2008,29 (1) 97-100

不同温度条件下三角新小卷蛾实验种群生命表

作  者:
陈泽坦;李荣幸;钟义海;符悦冠
单  位:
中国热带农业科学院环境与植物保护研究所
关键词:
三角新小卷蛾;温度;实验种群;生命表
摘  要:
在16、20、24、28和32℃5个温度条件下,观察温度对三角新小卷蛾(Olethreutes leucaspis Meyrick)各虫态生长、发育及存活的影响,组建三角新小卷蛾实验种群生命表。结果表明,在16~28℃条件下,三角新小卷蛾各虫态及世代生活历期随着温度的升高而缩短。卵期、幼虫期、蛹期、成虫期及世代的发育起点温度分别为4.92、3.91、8.54、11.14和4.30℃,有效积温分别为55.8、194.4、167.7、49.9和544.9日度。卵孵化率都在92%以上。内禀增长力(rm)均大于0,种群趋势指数(I)均大于1,在16~32℃温度下该虫种群呈增长趋势。三角新小卷蛾发育适宜温度为24~28℃。
译  名:
Life Table of the Laboratory Population of Olethreutes leucaspis Meyrick at Different Temperatures
作  者:
Chen Zetan Li Rongxing Zhong Yihai Fu Yueguan Environment and Plant Protection Research Institute CATAS Danzhou Hainan 571737 China
关键词:
Olethreutes leucaspis Meyrick temperature; experimental population life table
摘  要:
Experimental population of Olethreutes leucaspis Meyrick was observed in terms of development and mortality under different temperatures,16 ℃,20 ℃,24 ℃,28 ℃ or 32 ℃,based on which its life table was set up. The results showed that the developmental rate increased with the temperature from 16 ℃ to 28 ℃.The threshold temperatures for the development of egg,larva,pupa and adult and a generation of the O. leucaspis Meyrick were 4.92 ℃,3.91 ℃,8.54 ℃,11.14 ℃ and 4.30 ℃,respectively and the effective cumulative temperatures were 55.8 degree day,194.4 degree day,167.7 degree day,49.9 degree day,544.9 degree day,respectively. The egg hatching rates were all above 92 %. The innate capacity of natural increase(rm) was higher than 0,and the population trend index was higher than 1. The population of O. leucaspis Meyrick increased at the temperatures from 16 ℃ to 32 ℃. The suitable temperatures for development of O. leucaspis Meyrick were found to be between 24 ℃ and 28 ℃.

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