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中国农学通报

中国农学通报 ›› 2018, Vol. 34 ›› Issue (13): 150-154.doi: 10.11924/j.issn.1000-6850.casb18010129

所属专题： 水稻

• 植物保护 农药 • 上一篇    下一篇

基于2种中间寄主的稻螟赤眼蜂生命表编制与分析

刘兴龙,邵天玉,王克勤   

  1. 黑龙江省农业科学院植物保护研究所,黑龙江省农业科学院植物保护研究所,黑龙江省农业科学院植物保护研究所
  • 收稿日期:2018-01-23 修回日期:2018-04-16 接受日期:2018-02-23 出版日期:2018-05-07 发布日期:2018-05-07
  • 通讯作者: 刘兴龙
  • 基金资助:
    国家重点研发计划课题“东北春玉米区主要病虫草害的绿色防控技术”(2016YFD0300704)；黑龙江省农业科技创新工程院级科研项目“稻 螟赤眼蜂中间寄主筛选与繁殖技术研究”(2014ZD025)。

Trichogramma japonicum Based on 2 Kinds of Intermediate Hosts: Life Table Producing and Analysis

  • Received:2018-01-23 Revised:2018-04-16 Accepted:2018-02-23 Online:2018-05-07 Published:2018-05-07

摘要： 旨在寻求适合繁殖稻螟赤眼蜂(Trichogramma japonicum Ashmead)种群的中间寄主。笔者以小菜蛾[Plutella xylostella (L.)]卵和甜菜夜蛾(Spodoptera exigua Hübner)卵为中间寄主，编制稻螟赤眼蜂的种群生命表，分析比较生殖参数，评价其对2 种中间寄主的适合性。结果表明，稻螟赤眼蜂在小菜蛾卵上的净生殖力R0、内禀增长率rm、周限增长率λ与平均世代历期T 分别为6.12、0.1996、1.2210、9.0728，在甜菜夜蛾卵上的上述各项参数分别为10.58、0.2573、1.2934、9.1678。稻螟赤眼蜂在甜菜夜蛾卵上各项生殖参数都要高于在小菜蛾卵上的表现。甜菜夜蛾卵较小菜蛾卵更适合用作稻螟赤眼蜂繁殖的中间寄主。

关键词: 薏苡, 薏苡, 行距配置, 密度, 光合生理, 籽粒灌浆, 产量

Abstract: The paper aims to find the suitable intermediate hosts of breeding Trichogramma japonicum (Ashmead), the authors draw up the life table of T. japonicum, compared and analyzed it’s reproductive parameters, and evaluated the suitability of T. japonicum to the two intermediate hosts which were eggs of the Plutela xylostella (L.) and Spodoptera exigua (Hǜbner). The results showed that: the reproductive parameters such as net reproductive rate (R0), intrinsic increase rate (rm), finite increase rate (λ) and mean generation time (T) of T. japonicum on the eggs of P. xylostella were 6.12, 0.1996, 1.2210 and 9.0728，respectively. Whereas those parameters on the egg of S. exigua were 10.58, 0.2573, 1.2934 and 9.1678. The reproductive parameters on the egg of S. exigua were better than that on the egg of P. xylostella. Thus, the eggs of S. exigua is more suitable host for that of T. japonicum.

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