| ,2014,前裂长管茧蜂低温储存技术的研究[J].环境昆虫学报,(1):115-121 |
| 前裂长管茧蜂低温储存技术的研究 |
| Cold storage technique of Diachasmimorpha longicaudata (Ashmead) |
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| DOI： |
| 中文关键词: 前裂长管茧蜂 低温储存 羽化率 种群趋势指数 |
| 英文关键词:Diachasmimorpha longicaudata (Ashmead) cold storage emergence rate index of population trend |
| 基金项目:公益性行业(农业)科研专项经费项目（200903047） |
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| 中文摘要: |
| 前裂长管茧蜂Diachasmimorpha longicaudata (Ashmead) 是桔小实蝇Bactrocera dorsalis (Hendel) 及多种其他实蝇害虫幼虫期重要的天敌寄生蜂。本文研究了该蜂低温储存的适宜虫期、温度和时间条件。结果表明，在5℃条件下12日龄的前裂长管茧蜂受低温影响最小，储存3 d后羽化率达94.67%，与对照的9533%无显著差异；储存6 d后蜂蛹羽化率下降到70.00%，低于对照但高于其他日龄。相同日龄的前裂长管茧蜂随着储存时间的延长，其羽化率逐渐降低，甚至不羽化。为进一步研究冷存对前裂长管茧蜂品质的影响，以储存温度(2、5、8、11和14 ℃)和储存时间(3、6、9和12 d)为参试因子，对12日龄前裂长管茧蜂冷藏后的羽化率、繁殖子代数、繁殖子代雌蜂数、子代性比、雌蜂寿命、发育历期以及种群趋势指数进行综合分析。结果表明：12日龄的前裂长管茧蜂在8℃下储存3 d，其种群趋势指数为29.32；14℃下储存6 d和9 d的种群趋势指数分别为32.85和27.04，均高于对照的25.16。因此上述组合是前裂长管茧蜂蛹低温储存的适宜条件。 |
| 英文摘要: |
| Optimal conditions for cold storage of Diachasmimorpha longicaudata (Ashmead) were studied in this paper. Results showed that the 12-day old D.longicaudata (at the stage of pupa) was the optimal stage for cold storage because it was less susceptive to the low temperature. Its emergence rate reached 94.67% when stored at 5℃ for 3 days, which was close to the control, 95.33%. Its emergence rate decreased to 70.00% when stored for 6 days, however which was quite higher than other treatments. The effect of cold storage on the population quality of 12-day old. D. longicaudatawas evaluated from the aspects of developmental duration, emergence rates, fecundity, sex ratio of the offspring, female longevity, and index of population trend ( I value), D. longicaudatapupae were stored at 2, 5, 8, 11 and 14℃ for periods of 3, 6, 9 and 12 days, separately. The optimal storage conditions forD.longicaudata pupa were to store at 8℃ for 3 d and 14℃ for less than 9 d, their I value were close or even a little higher than the control ones, 25.16. |
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