| 摘要: |
| [目的]确定温度与花绒寄甲卵、幼虫、茧蛹发育的关系,为其人工饲养提供依据.[方法]分别用不同温度处理花绒寄甲的卵、幼虫、蛹和成虫,每天定时观察记录其孵化、发育、化蛹和羽化情况,以及不同营养条件下成虫的死亡数量和产卵情况.[结果]花绒寄甲卵期发育速率与温度的关系符合幂指数模型,有效积温K和发育起点温度C分别为(126.09±9.58)d·℃和(12.8022±0.330 2)℃;幼虫期和茧蛹期发育速率与温度的关系符合指数模型,K、C分别为(139.0±8.29)d·℃,(11.7±0.58)℃和(265.24±9.00)d·℃,(13.9±0.99)℃.在缺乏营养及16～19℃条件下,花绒寄甲成虫组群死亡率达50%的时间为62.2～63 d,当饲料供给充足时,在22～25℃条件下成虫的产卵量最大.[结论]保障食物供给后,花绒寄甲成虫在所有温度处理下的寿命均达5年以上,其饲养和繁殖的最适宜温度为22℃. |
| 关键词: 花绒寄甲 温度 发育 繁殖 |
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| 基金项目:国家科技攻关项目，陕西省重点项目? |
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| Study on the relationship between temperature and the growth and procreation of Dastarcus helophoroides Fairmaire |
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| Abstract: |
| 【Objective】 The relationship between temperature and the development of the egg,larva and cocoon of Dastarcus helophoroide s Fairmaire was ascertained,and provided evidence for its artificial rearing.【Method】 The egg,larva and cocoon of D.helophoroides were treated with different temperatures.The incubation,development,pupation and eclosion of D.helophoroides were observed timely every day,the amount of death and oviposition of D.helophoroides adults under different nutrient conditions were observed too.【Result】 The relationship between temperature and the development of the egg period of D.helophoroides accorded with power index model.The value of effective accumulated temperature (K) and the developmental threshold temperature (C) were (126.09±9.58) d·℃ and (12.802 2±0.330 2) ℃.The relationship between temperature and the development of larva and pupal stage accords with parabolic type,and the values of C and K were (139.0±8.29) d·℃,(11.7±0.58) ℃ and (265.24±9.00) d·℃,(13.9±0.99) ℃.In the condition of nutritional deficiency and the temperature in the range of 16-19 ℃,the adults’mortality reached 50% at 62.2-63 d.Under the opposite conditions,when the temperature was 22-25 ℃,the adults’fecundity was greatest. 【Conclusion】 The duration of adults’ lives can be more than 5 years under all temperature treatment if the intake of nutrition is sufficient,from this situation,the optimum temperature for breeding is 22 ℃. |
| Key words: Dastarcus helophoroides temperature development breeding |
