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Issue:ISSN 2095-1353
           CN 11-6020/Q
Director:Chinese Academy of Sciences
Sponsored by:Chinese Society of Entomological;institute of zoology, chinese academy of sciences;
Address:Chaoyang District No. 1 Beichen West Road, No. 5 hospital,Beijing City,100101, China
Your Position :Home->Past Journals Catalog->2021年58 No.4

Diapause termination and post-diapause of overwintering Clanis bilineata tsingtauica larvae
Author of the article:GUO Ming-Ming LI Xiao-Feng DENG Pan LI Da-Wei LI Jun-Ling FAN Ji-Wei CHEN Feng
Author's Workplace:Lianyungang Academy of Agricultural Sciences, Lianyungang 222000, China; Jiangsu Academy of Agricultural Sciences Institute of Leisure Agriculture, Nanjing 210000, China; Yuntai Branch of Jiangsu Provincial Agricultural Reclamation and Development Corporation, Lianyungang 222063, China
Key Words:Clanis bilineata tsingtauica; temperature; diapause termination; biological characteristics

[Objectives]  To investigate the mechanism of diapause termination in Clanis bilineata tsingtauica which mainly enters diapause as mature larvae. [Methods]  Larvae were kept under four different temperature gradients under constant humidity and differences in diapause duration, pupation and emergence between these temperature treatment groups was compared. [Results]  The duration of diapause and the pupal stage gradually shortened as temperature increased, reaching minimum values of (34.4±0.3) d and (6.7±1.2) d, respectively at 35 ℃. The pupation rate and pupal weight first increased, then decreased, with increasing temperature. The maximum pupation rate was (80.60±0.26) % at 25 ℃ and the maximum average pupal weight was (4.21±0.07) g at 30 ℃. The adult emergence rate decreased significantly with increasing temperature. The oviposition rate reached a maximum of (204±9) eggs/female at 25 ℃. These results show that the diapause status of Clanis bilineata tsingtauica could be reversed when the effective accumulated temperature reached 1 111.1 degree·days at room temperature. [Conclusion] The post-diapause growth and development of Clanis bilineata tsingtauica was optimal after diapause termination at a temperature of 25 ℃.

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