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中国生物防治学报 ›› 2020, Vol. 36 ›› Issue (2): 294-299.DOI: 10.16409/j.cnki.2095-039x.2020.02.016

• 研究简报 • 上一篇    下一篇

变温和光周期对加州新小绥螨性别分化及繁殖的影响

胡昊旻, 李庆, 蒋春先, 王海建, 杨群芳   

  1. 四川农业大学农学院, 成都 611130
  • 收稿日期:2019-08-20 出版日期:2020-04-08 发布日期:2020-04-16
  • 通讯作者: 李庆,博士,教授,E-mail:liq8633@163.com
  • 作者简介:胡昊旻,研究生,E-mail:576176461@qq.com
  • 基金资助:
    国家重点研发计划(2018YFD0201400);国家现代农业产业技术体系四川创新团队(sccxtd-04)

Effects of Fluctuating Temperature and Photoperiod on Sex Differentiation and Reproduction of Neoseiulus californicus (Parasitiformes:Phytoseiidae)

HU Haomin, LI Qing, JIANG Chunxian, WANG Haijian, YANG Qunfang   

  1. College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
  • Received:2019-08-20 Online:2020-04-08 Published:2020-04-16

摘要: 本研究以朱砂叶螨为猎物,研究了在23℃/13℃、26℃/16℃、29℃/19℃、32℃/22℃和35℃/25℃五个变温和14L:10D、12L:12D和10L:14D三个光周期共15个组合对加州新小绥螨性比分化及繁殖的影响。明确32℃/22℃的变温与光周期14L:10D组合的雌性比最高,为78.38%。其次为32℃/22℃的变温和光周期10L:14D的组合,为77.32%;32℃/22℃的变温和光周期10L:14D组合的每雌平均产卵量最高为91.12,显著高于32℃/22℃的变温和光周期14L:10D的每雌平均产卵量43.55。32℃/22℃的变温和光周期10L:14D组合利于加州新小绥螨种群发展。该研究结果为规模繁育加州新小绥螨,实现种群快速增长提供了重要理论依据。

关键词: 加州新小绥螨, 变温, 光周期, 性别分化

Abstract: With Tetranychus cinnabarinus as the prey, sex differentiation and reproduction of Neoseiulus californicus were examined under combinations of 5 fluctuating temperatures (23/13, 26/16, 29/19, 32/22, and 35/25℃, temperatures in photophase/scotophase) and 3 photoperiods (14L:10D, 12L:12D, 10L:14D). A significant higher female rate (78.4%) was detected at the condition of 32/22℃ and 14L:10D. The second higher female rate (77.3%) was observed from the combination of 32/22℃ and 10L:14D. However, the highest fecundity (91.1 eggs/female) occurred in the combination of 32/22℃ and 10L:14D, which is significantly higher than that (43.55) in the combination of 32/ 22℃ and 14L:10D. In conclusion, the combination of 32/22℃ and 10L:14D is most beneficial to the reproduction of N. californicus. This finding serves to support the mass breeding of N. californicus.

Key words: Neoseiulus californicus, alternating temperature, photoperiod, sex differentiation

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