产卵作用

Vg could be detected in haemolmph of the water—fed female at 48h after eclosion, too.

用10％的蜂蜜和清水分别饲喂两组成虫(简称"蜜组"和"水组")，以研究成虫期的营养对Vg发生和卵巢发育的影响，结果显示，成虫期营养对于Vg的启动合成并不起关键的决定性作用，两组成虫均可以在羽化的48小时检测到Vg，且水组中的血淋巴水平并不低于蜜组对照，但绝大多数水组个体的卵巢发育停留在卵黄沉积的某一时期，此时在血淋巴中也检测不到，只有约20％的饲水个体卵巢可以发育成熟，出少量卵；用高剂量的ZR515于羽化当日点滴处理饲水个体，可以使所有接受处理的饲水个体的卵巢发育成熟，但是产卵〓依旧低于对照组的，不能恢复正常；这说明成虫期营养对卵巢中全体卵母细胞的成熟是必需的，其作用的产生是通过内分泌系统途径实现的。

By using electroantennography, olfactometer, and other technologies, the ovipositional attraction of Canna edulis Ker and several maizes to Ostrinia furnacalis at the natural and indoor conditions were studied.

通过触角电位和嗅觉仪等技术，测定了自然和室内条件下，蕉藕和几个玉米品种对亚洲玉米螟的产卵诱集作用。

And the process of oviposition of the female was also markedly influenced by this antisera.

证明初产卵在抗卵胚超免疫血清的作用下，胚胎发育受到明显抑制。

Olfaction plays crucial role in mosquito host seeking, oviposition and searching for sugar sources.

嗅觉在蚊虫的吸血寄主搜寻、产卵和糖源搜寻行为中起决定作用，而在交配行为中的作用并不清楚。

These results indicated that Def1 gene played an important role in reducing the quality of tomato leaves as a food source and oviposition substrate for two spotted spider mite.

这些结果指出：Def1基因发挥着重要作用--降低了番茄叶片作为二点叶螨食物来源和产卵基质的质量。

Result shows that the Apriona germari adult insect prefer to eat Broussonetia papyrfera and reject to eat other tree species which result in difference in natural life and fecundity. Total sugar and dissolvable protein content in the bark is not the cause of rejection. Difference of dissolvable sugar and amino acid may be the reason of preference while difference of dissolvable phenolics and tannin content may explain the rejection.

取食构树的桑天牛成虫取食量大，存活时间长，产卵量大，遗卵量少，其他3个树种则相反。4树种树皮内总糖和可溶性蛋白含量与桑天牛抗性无关，树皮内可溶性糖含量、总氨基酸和必需氨基酸含量对抗性有一定影响。4树种树皮内水溶性总酚含量和单宁含量差异对成虫取食有较大影响，酚类和单宁等次生物质对桑天牛成虫的忌避作用是导致抗性的主要原因。

The results indicated that the bioactivity(touch kill, oviposit inhibition, repellency)of methyl linoleate was high , the adjusted mortalities of female mite and egg were 82.82% and 78.54%, Oviposit inhibit ion rate and repellency rate were 78.46% and 95.61%,respectively at the concentration of 5 mg/ml.

亚油酸甲酯具有较强的触杀、产卵抑制和驱避作用，浓度为5 mg/ml时，对朱砂叶螨的雌成螨和卵24h后的校正死亡率分别达到82.82%和78.54%，LC50分别为1.4434mg/ml和2.0283mg/ml；对雌成螨24h后的产卵抑制率和驱避率分别达到78.46%和95.61%。

Mosquitoes captured and the egg positive traps were counted and recorded every day. Results Comparing with the control group, yeast-generated CO2 could take a strong attraction to mosquitoes in the field (P.05), but had an adverse effect in laboratory. P. maximum infusion, tyre infusion and L-lactic acid dilution could not attract Aedes albopictus to oviposit in Mosq-ovitrap. The colour change of Mosq-ovitrap could not raise its attractant ability to mosquitoes, on the contrary, increase the probability of mosquito escaping from Mosq-ovitrap.

结果 实验室和现场的结果显示，酵母发酵产生的CO2在室内实验中没有增强诱蚊诱卵器的诱蚊效果，而在现场实验中却产生较好的诱蚊作用，实验组的诱蚊指数和诱蚊密度指数与对照组比较差异均有统计学意义(P.05)；大黍叶、轮胎浸出液和乳酸稀释液在试验中未显示出吸引白纹伊蚊雌蚊产卵的能力；在改变诱蚊诱卵器杯身颜色的试验中，杯身上2/3变为黑色并不能提高它的诱蚊和诱卵能力，反而增加成蚊逃逸的概率。

Avermeetin has no contract poisoning toxicity to eggs and no effect on adult lifespan and mean number of eggs of Plutella xylostella .

阿维菌素对小菜蛾卵不具触杀毒力，对成虫寿命及产卵量无明显的影响作用。

And these estrogens,depending on the level of wastewater treatment,may not be completely broken down during sewage treatment,so they get discharged into rivers and streams.male fish exposed to the hormone become feminized,they produce the same proteins that female fish do to develop eggs,some males even develop eggs in their testes.

妇女自然而然地分泌雌激素，然而她们服用的避孕药中隐藏着人造的雌激素。这些雌激素可能在污水处理过程中不能彻底地清除，被排入河水和溪流。雄鱼在荷尔蒙的作用下雌化，产生了雌鱼产卵前生成的蛋白质，一些雄鱼甚至在睾丸中产卵。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。