| 两广二号杂交原种不同时间点交配的产卵规律调查分析 |
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| 引用本文： | 李燕飞,乐波灵,赖艳梅,莫云霞,蒋玉莲,何珊珊,徐安英.两广二号杂交原种不同时间点交配的产卵规律调查分析[J].南方农业学报,2017,48(4):728-733. |
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| 作者姓名： | 李燕飞 乐波灵 赖艳梅 莫云霞 蒋玉莲 何珊珊 徐安英 |
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| 作者单位： | 江苏科技大学, 江苏 镇江 212003广西蚕业科学研究院, 南宁 530007广西蚕业科学研究院,南宁,530007江苏科技大学,江苏 镇江,212003 |
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| 基金项目： | 国家桑蚕产业技术体系建设项目，广西蚕业科学研究院青年基金项目 |
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| 摘 要： | 目的]明确两广二号杂交原种的产卵规律及最适交配时间,为有效缩短蚕种卵龄差及改进蚕种制种管理技术措施提供参考依据.方法]以两广二号杂交原种4个品种(芙蓉×932、932×芙蓉、湘晖×7532、7532×湘晖)的母蛾为试验材料,调查不同品种在不同时间点交配其母蛾在各时段产卵量占总产卵量的百分比及单蛾产卵量和不良卵率,找出两广二号杂交原种不同交配形式的产卵规律.结果]同一品种不同时间点交配的产卵规律有所不同.中系品种(芙蓉×932和932×芙蓉)拆对后产卵有明显的产卵高峰期和产卵低谷期,产卵曲线呈波浪形,其中于8:00和9:00交配的母蛾产卵不集中,产卵时间跨度长;而于10:00和11:00交配的母蛾拆对后迅速产卵并达产卵高峰期,产卵相对较集中.日系品种(湘晖×7532和7532×湘晖)各时间点交配的产卵规律基本一致,产卵趋势较平稳,均在拆对后迅速产卵,每个时段的产卵量随产卵时间的推进逐渐减少.4个品种不同时间点交配对其单蛾产卵量、不良卵率的影响不明显,但从双因素方差分析结果来看,各品种间的单蛾产卵量、不良卵率存在极显著差异(P<0.01).结论]不同时间点交配对产卵高峰期和产卵集中度有影响,对单蛾产卵量和不良卵率无明显影响,但其发生规律存在差异.生产上应根据家蚕母蛾产卵规律适当调整母蛾交配、拆对、投蛾和收蛾等的时间点,蚕种保护及浸酸也可参考母蛾产卵规律进行相应处理,减少卵龄差,提高蚕卵孵化整齐度及孵化率.
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| 关 键 词： | 两广二号 交配时间点 产卵规律 单蛾卵量 不良卵率 |
Oviposition behavior research for stocks of Liangguang No.2 mating at different times |
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| LI Yan-fei,YUE Bo-ling,LAI Yan-mei,MO Yun-xia,JIANG Yu-lian,HE Shan-shan,XU An-ying.Oviposition behavior research for stocks of Liangguang No.2 mating at different times[J].Journal of Southern Agriculture,2017,48(4):728-733. |
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| Authors: | LI Yan-fei YUE Bo-ling LAI Yan-mei MO Yun-xia JIANG Yu-lian HE Shan-shan XU An-ying |
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| Abstract: | Objective]Oviposition behavior and best mating time of stocks of Liangguang No.2 were studied in order to provide reference for shortening egg age gap and improving egg producing management technique. Method]Female moths of four varieties of stocks of Liangguang No.2 for double cross(Furong×932,932×Furong,Xianghui×7532,7532×Xianghui) were taken as test materials. Egg amount percentage of the total amount at different times after mating at different times, egg number per moth and poor egg rate of different varieties were researched, in order to find out the oviposition behavior of stocks for double cross by different mating patterns. Result]There were differences in oviposition behavior between differ-ent mating times for the same variety. Chinese varieties(Furong×932 and 932×Furong) oviposition graph presented obvious wavy, it showed obvious oviposition ups and downs. When mating at 8:00 or 9:00, the oviposition was not so concentrated with a long durable time;while mating at 10:00 or 11:00, moth spawned rapidly and reached oviposition peak after departing, the oviposition process was relatively concentrated. Japanese varieties (Xianghui×7532,7532×Xianghui) oviposition regulation mating at different times were similar, and oviposition amount remained steady and spawned rapidly. During each oviposition period, oviposition amount declined as time extended. For the four varieties, different mating times had insignificant difference on egg number per moth and poor egg rate. But there existed significant difference on egg number per moth and poor egg rate between different varieties based on two-factor variance analysis(P<0.01). Conclusion]Different mating times has influence on opvisition peak time and concentration, but no influence on egg number per moth and poor egg rate. The occurrence rules were different. In actual cultivation, time point of mating, departing, releasing moth and taking back moth should be adjusted based on opvisition behavior. Silkworm egg protection and pickling can also refer to opvisition behavior, so as to reduce egg age gap, enhance degree of hatching uniformity and hatching rate. |
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| Keywords: | Liangguang No 2 mating time ovipsition behavior egg number per moth poor egg rate |
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