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幼虫

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Results The anterior spiracle, posterior spiracle and cephalopharyngeal skeleton regularly changed with daily larval growth. The three indexes including the sclerotizes area of pharyngeal sclerite, the average optical density of pharyngeal sclerite and the posterior spiracle could be used as the ideal indexes of larvae age.

结果 丝光绿蝇幼虫前气门、后气门、头咽骨均随着时间的延长发生规律性变化,幼虫后气门平均光密度、咽骨骨化面积及其平均光密度这3项指标是推断幼虫日龄较理想的指标。

The larval stage of certain tapeworms, resembling a cysticercus but having the scolex completely filling the enclosing cyst.

拟囊尾幼虫某些绦虫的幼虫阶段,象囊尾幼虫但有完全充满封闭囊的头结

The body weights of SSB fed on control rice after feeding on KMD1 for 36h were very significantly lower on day 0 and day 3, and significantly lower on day 9, compared with those of the control. Parasitism rates of host larvae fed on KMD1 by Apanteles chilonis were significantly (3th instar) or very significantly (4th and 5th instar) lower than those of the control host.

二化螟绒茧蜂寄生取食过KMD1的二化螟后,三个龄期幼虫的寄生率都显著下降,其中4龄和5龄达极显著水平;3龄和4龄上的结茧率显著低于对照;蜂蛹历期均短于对照,但仅3龄差异显著;从5龄幼虫所羽化的雄蜂寿命显著短于对照;蜂茧长显著短于对照;而对卵+幼虫期、茧块大小、蜂羽化率及性比均无显著影响。

The fresh royal jelly is slightly ropy milk paste substance; it is the excretive mixture of nutrition gland and maxilla gland of the head of little worker bee. The worker bees use this to feed the 1-3 days' worker bee larva and drone larva, 1-5.5 days' queen bee larva and queen bee in the oviposition period.

新鲜蜂王浆是一种微粘稠乳浆状物质,是幼龄工蜂头部的营养腺和上颚腺共同分泌的混合物,工蜂用它来喂饲1-3日龄工蜂幼虫与雄蜂幼虫、1-5.5日龄蜂王幼虫和产卵期蜂王。

Separate when feeding on the leaves of MON810 and Bt11 at the 11th day, compared with 0 mortality in non-transgenic isogenic hybrid.

取食的第11天4龄幼虫全部死亡,对照幼虫存活率均为100%;在Bt11和MON810叶片上取食的粘虫5龄幼虫也不能存活,分别在取食的第11天和12天全部死亡,对照存活率分别为96.00%和98.00%。

Insect feeding test showed that after 30 days feeding Lymantria dispar larva with potted plant tender leaves, the mortality rate of Lymantria dispar larva fed with every transgenic line was over 90%, even up to 98.9%; but the mortality rate of larva fed with non-transgenic plants was only 10%.

7饲虫实验结果表明,盆栽苗幼嫩叶片饲喂舞毒蛾幼虫30d后,各个转基因株系幼虫死亡率均在90%以上,最高达到98.9%;而非转基因植株幼虫死亡率仅为10%。

It mainly preys on many kinds of Lepidoptera larvae and other farming and forestry pests, such as the larvae of scarabaeoidea and Muscidae etc.

捕食多种鳞翅目幼虫,在无鳞翅目幼虫的场合可捕食金龟甲总科、蝇科等某些种类的幼虫

When transgenic rape leaves were fed to Plutella xylostera, mortality of second instar larvae ranged from 33% to 47% and the survival larvae had a less weight than the control.

对叶绿体转化植株进行虫试,结果表明,8天后小菜蛾幼虫的死亡率为33%-47%,未死亡的幼虫比对照体重减轻。说明所获得的叶绿体转基因植株具有杀虫和抑制幼虫生长的作用。

Red ants carry the larvae into their nests, where they live for the next 10 months feeding on ant grubs, until they pupate and emerge as adults.

幼虫掉在地上,接着就是最奇怪的地方,红蚁把其幼虫扛进巢穴中,在那里它们要呆10个月,靠蚁幼虫为生,直到它们化蛹,成为成虫。

The bioassay resultshowed the three kinds of PG tested could prolong the duration of larval stadium.Salicortin and deltoidin could reduce the survival rate of larvae,pupate rate andgrowth weight evidently,especially for salicortin at high lever(more than 2%).

结果表明,3种酚甙对幼虫生长发育均存在不同程度的负作用,并有剂量效应;3种酚甙均可延长幼虫虫期;柳皮甙和美洲黑杨甙可明显降低幼虫存活率、体重增加率和化蛹率;尤其是柳皮甙在高含量条件下(大于2%)作用更为明显。

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