大螟卵块低温保藏的观察

来源 :昆虫知识 | 被引量 : 0次 | 上传用户:Calvin521
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
在大螟Sesamia inferens Walker的诸如产量损失,抗虫育种,药效试验等方面的研究工作中,常常需要在预定的时期内用大量的卵块进行人工接种。在一般情况下,大量饲养获卵或田间集中大量采卵不易而因此影响到试验的进行,那么,螟卵的保存就成为一个重要的问题。为此,笔者用普通冰箱,在2±O.5℃温度下,进行了大螟卵处理时间与孵化率关系的观察,借以确定安全的保藏时间。 In the research work of Sesamia inferens Walker such as yield loss, insect resistance breeding and efficacy test, it is often necessary to inoculate a large number of egg masses within a predetermined period of time. Under normal circumstances, a large number of eggs or eggs collected in the field is not easy to concentrate a large number of eggs and therefore affect the conduct of the trial, then the preservation of borer eggs has become an important issue. To this end, the author with an ordinary refrigerator, at 2 ± 0.5 ℃ temperature, the time of treatment of the Arborvitae egg and hatching rate relationship observed in order to determine the safe storage time.
其他文献
请下载后查看,本文暂不支持在线获取查看简介。 Please download to view, this article does not support online access to view profile.
期刊
期刊
使用大鼠肾上腺髓质褐色细胞瘤(PC12细胞),探讨了蜂胶对氧化应激引起神经细胞损害的防护作用以及对小鼠大脑中动脉闭塞(MCAO)引起脑梗塞的作用。方法:①经神经生长因子(NGF)
请下载后查看,本文暂不支持在线获取查看简介。 Please download to view, this article does not support online access to view profile.
Polycrystalline silicon thin films were prepared by RTCVD (rapid thermal chemica l vapor deposition) method on several substrates such as SSP (silicon sheet fro
请下载后查看,本文暂不支持在线获取查看简介。 Please download to view, this article does not support online access to view profile.
她是蜚声歌坛的女高音歌唱家,“唱游”于西洋美声作品和中国民族歌曲之间,挥洒自如,独树一帜。她用中西合璧唱法演唱的歌剧《张骞》选曲之《铺平大道通长安》为中国民族唱法
请下载后查看,本文暂不支持在线获取查看简介。 Please download to view, this article does not support online access to view profile.
在我们的生活中,即使再安静,也会有变幻的声音和色彩,让我们的视听得到刺激。然而,当宇航员在天际飞行时,几个月的时间,透过舷窗口只能看见黑暗无边的天空、亮丽却从不闪烁的