摘要
为探讨不同温度下豇豆花粉对卵圆真绥螨[Euseius ovalis(Evans)]发育及繁殖的影响,在温度条件为25、30、35℃下,用豇豆花粉饲喂卵圆真绥螨,观察雌成螨繁殖,记录卵至成螨的发育历期,分析各螨态存活率及各生命参数。结果表明,用豇豆花粉饲喂卵圆真绥螨在3种温度下均可正常发育和繁殖,单雌总产卵量分别为(32.33±2.17)、(19.29±2.85)、(10.40±1.92)粒。卵-成螨30℃时发育历期最短,为(3.71±0.12)d。卵-成螨在25、30℃下存在较高的存活率,分别为93.75%±4.35%、90.63%±5.24%,35℃时存活率最低,为68.75%±8.30%。说明豇豆花粉可作为卵圆真绥螨的交替食物。35℃时,卵圆真绥螨的净增殖率、内禀增长率和周限增长率均为最低,分别为1.45±0.13、0.04±0.03和1.04±0.02,与25、30℃时存在显著差异,说明高温对卵圆真绥螨存在抑制作用。30℃种群加倍时间最短,为(3.73±0.56)d。
The development and reproduction of Euseius ovalis（Evans） feed on Vigna unguiculata pollen at constant different temperatures 25, 30, 35 ℃ was studied. The results indicated that E. ovalis could complete the development at the three temperatures, and the egg-laying amount of female were 32.33±2.17, 19.29±2.85 and 10.40±1.92, while egg-adult period was（3.71±0.12） days which observed at 30 ℃. The highest survival rate was observed at 25 ℃ and 30 ℃, which was 93.75%±4.35% percent and 90.63%±5.24% percent, and the lowest survival rate was 68.75%±8.30% percent at 35 ℃. V. unguiculata pollen was its alternative food. The highest net reproductive rate（R0）, intrinsic rate of inerease（rm）,and fintie rate（λ） were observed at 35 ℃, which was 1.45±0.13, 0.04±0.03, and 1.04±0.02 respectively and significant differences compared between 25 ℃and 30 ℃. High temperature inhibited E. ovalis. The shortest doubling time for population（t） was（3.73±0.56） days.
作者
于静静
高芳铭
曹凤勤
郝慧华
YU Jingjing;GAO Fangming;CAO Fengqin;HAO Huihua(Institute of Tropical Agriculture and Forestry, Hainan University, Haikou, Hainan 570228, China;Qioagtai Normal University, Haikou, Hainan 571127, China)
出处
《热带作物学报》
CSCD
北大核心
2018年第6期1172-1175,共4页
Chinese Journal of Tropical Crops
基金
海南省教育厅科研项目(No.Hnky201663)
琼台师范学院校级科研项目(No.qtky201504)
关键词
豇豆花粉
卵圆真绥螨
发育
繁殖
Vigna unguiculata pollen
Euseius ovalis
development
reproduction
