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자료유형
학술저널
저자정보
저널정보
한국잠사학회 International Journal of Industrial Entomology International Journal of Industrial Entomology 제20권 제2호
발행연도
2010.1
수록면
93 - 98 (6page)

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Bumblebees are widely used to pollinate various crops,especially tomato, in greenhouses and fields. An artificial hibernation is essential for year-round rearing of the bumblebee, which passes through one generation per year. Here, we investigated whether a chilling temperature and humidity affect artificial hibernation of the bumblebee queen Bombus terrestris. In chilling temperature regimes of 0oC, 2.5oC, 5oC, 7.5oC or 12.5oC under constant humidity >70%, the queens stored at 2.5oC exhibited the highest rate of survival,which was 74.0% at one month, 67.0% at two months,60.0% at three months, 46.0% at 4 months, 33.0% at 5 months, and 24.0% at 6 months. Rates of survival decreased at the following temperatures: 0oC, 5oC,7.5oC and 12.5oC. Colony developmental characteristics after diapause were 1.2- to 1.5-fold higher than those of queens stored at 5oC. In terms of chilling humidity, the queens hibernated at 70% under 2.5oC exhibited the highest rate of survival, which was 93.3±3.4% at one month, 83.3 ± 0.0% at two months,76.7±0.0% at 3 months and 36.7± 12.1% at 5 months. The rates of oviposition, colony foundation and progeny-queen production of queens hibernated at 70%were 80.8%, 30.8% and 30.8%, respectively. These values correspond to 1.7- to 3.3-fold increases in comparison to queens stored at 50% humidity. Therefore,2.5oC and 70% R.H. were the favorable chilling temperature and humidity conditions for diapause break of B. terrestris queens.

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