温度对橡副珠蜡蚧实验种群的影响  

Influence of Temperature on the Laboratory Population of Parasaissetia nigra Nietner

作　　者：陈伟[1] 符悦冠[1] 彭正强[1] 

机构地区：[1]中国热带农业科学院环境与植物保护研究所农业部热带农林有害生物入侵与控制重点开放实验室海南省热带农业有害生物检测监控重点实验室,海南儋州571737

出　　处：《热带作物学报》2010年第5期809-814,共6页Chinese Journal of Tropical Crops

基　　金：农业部南亚办资助项目(RZLY200510);农业公益性行业科研专项经费(nyhyzx07-033-2);院基金资助项目(Rky0706)资助

摘　　要：在不同温度条件下(15、18、20、23、25、27、30、32、35℃),观察温度对橡副珠蜡蚧发育、存活及繁殖的影响。结果表明:橡副珠蜡蚧世代发育历期开始随温度升高而缩短,25℃最短,为84.3d,之后随温度升高其略有延长,到32、35℃不能完成世代发育;存活率以25℃最高,为57.24%,高温和低温均不利于存活;世代的发育起点温度为10.0℃,有效积温为1483.5日.度;净生殖率、内禀增长率及周限增长率均以25℃最大,分别为358.41、0.0533、1.0548。综合可知,橡副珠蜡蚧的最适生长温度为23～27℃,此温度下,该种群数量增值速度最快。The effect of temperature on development, survival and reproduction of Parasaissetia nigra was observed at 7 constant temperatures.The results showed that the developmental duration of P.nigra decreased with the temperature increasing from 15 ℃ to 25 ℃, with the shortest of 84.3 d at 25 ℃, while when the temperature ranged from 25 ℃ to 30 ℃, the developmental duration became slightly longer.When the temperatur was at 32 ℃ and 35 ℃, P.nigra failed to develop normally.The survival rate was the highest at 27 ℃ .High and low temperatures were adverse to surviving.The threshold and effective accumulated temperatures for the development of P.nigra were 10.0 ℃ and 1483.5 degree-day respectively.The net reproduction, innate capacity for natural increase（rm） and finite rate of increase were the highest at 25 ℃.The most favourable temperature for the growth of population of P.nigra ranged from 23 ℃ to 27 ℃ by rm as the indicator of the population growth.

关 键 词：橡副珠蜡蚧 温度 实验种群 内禀增长率 

分 类 号：S433[农业科学—农业昆虫与害虫防治] Q969.36[农业科学—植物保护]