查询词典 larva

Result In direct effect experiment, 4.5% high active cypermethrin emulsifiable solution had strongest toxic effect on Coccinella septempunctata larva with the mortality of 93.33%; 20% haoniandong emulsifiable solution had strongest toxic effect on Coccinella septempunctata adults with the mortality of 56.67%.

结果］直接作用试验结果，以4.5%高效氯氰菊酯乳油对七星瓢虫幼虫的毒杀作用最大，死亡率达到93.33%； 20%好年冬乳油对成虫的毒杀作用最大，死亡率达到56.67%。

The stages from larva to the protonymph, or from protonymph to the deutonymph, were more sensitive to photoperiod than other stages, however, among these a single developmental stage could not induce diapause.

结果表明21℃下，临界光周期为12 h 32 min，光敏感螨态为幼螨至第二若螨之间的连续两个螨态，单独一个发育阶段对短光照不敏感或仅有微弱的感应。

Engraulis japonicus ; egg ; larva ; embryo development ; environmental conditions ; the Northern of East China Sea ; the Southern of Yellow Sea

鳀； 鱼卵；仔稚幼鱼；胚胎发育；环境条件；东海北部；黄海南部

Results A single excysted larva in plasma was identified. Due to the different homologies of the A1 、B1 of the 1.6-kb fragment, 3 bands of 500bp、670bp and 1200bp usually were present.

采用PCR法，选择与合成引物并确立最佳扩增条件，比较不同的提取DNA方法，检测血浆中旋毛虫幼虫。

It showed that in conditions of water temperature 20～21℃,salinity 20～30,pH 8.0～8.3,the fertilized eggs developed to 2-cell in about 2h,blastula stage in about 15h,gastrula stage 30h and the hatched out larva 152h after fertilization.

其结果表明：在水温20-21℃、盐度20-30、pH值8.0-8.3的条件下，受精卵受精后2h为2细胞期、15h为囊胚期、30h为原肠期、55h为胚体期、152h孵出仔鱼

Repass and other 5 kinds the configuration of frontal flea larva is compared, discovery belongs to frontal flea subgenus number of 5 kinds of larval big gnathic tine are 5 tine commonly, one age larval broken egg implement the larval big jaw that the front belongs to subspecies of otter of ash of flea of forehead of subgenus of bird forehead flea for shoe form; ages number amounts to 9, one age larval broken egg implement the front is bat form.

再通过与其它 5种额蚤幼虫的形态比较，发现属于额蚤亚属 5种幼虫的大颚齿数一般为 5个齿，一龄幼虫的破卵器正面为鞋形；而属于鸟额蚤亚属前额蚤灰獭亚种的幼虫的大颚齿数达 9个，一龄幼虫的破卵器正面为球拍形。

The injectable hemocoelic potency LD (50 of toxin Ⅲ was 0.18 μg/larva against Galleria mellonella fifth_instar larvae.

SDS-PAGE图谱显示毒素Ⅰ和毒素Ⅱ是由多个多肽组成的复合蛋白，而毒素Ⅲ只分离出一条多肽。

And Aphelenchoides besseyi with distinct effects; the fermentation liquid of the bacterial strain has higher poisonous activity to second instar larva of Heterodera glycines, and can remarkably restrain cyst hatching; the treatment of fermentation liquid with different diluted concentration is significantly different from the treatment of sterile water; the insecticidal effects of stock fermentation solution can reach above 90%, and the effects of greenhouse experiment are obvious; at the same time, the bacterial strain can remarkably poison the Meloidogyne spp.

该菌株的发酵液对大豆胞囊线虫二龄幼虫具有较高的毒杀活性并显著抑制胞囊孵化，不同稀释浓度发酵液的处理和无菌水处理有显著差异，发酵原液的杀线虫效果可达到90％以上，温室防效试验效果明显。同时该菌株对根结线虫Meloidogyne spp。

Onchosphere; hexacanth embryo; six-hooked larva

六钩蚴；六钩幼虫

Like all holometabolic insects , they go through four life-stages: egg , larva , pupa , and adult .

象所有holometabolic 昆虫，他们经过四个生命阶段：卵，幼虫，蛹，成虫。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。