羽化率

  • 网络emergence rate;eclosion rate
羽化率羽化率
  1. 虱螨脲处理的小菜蛾也表现出毒物兴奋效应,其化蛹率和羽化率在低浓度(LC10和LC20)受到刺激升高,在高浓度被抑制而下降。

    The DBM treated with lufenuron showed hormesis , stimulate increased pupation rate and emergence rate by low concentrations ( LC10and LC20 ), were decreased by inhibited at high concentrations .

  2. 家蝇室内连续饲养11代羽化率观察

    A continuous observation on emergence rate of the housefly for eleven generations

  3. 发育蛹的耐低温能力比卵弱,已发育1d的蛹,冷藏3d后,羽化率仅为80%,羽化率随蛹冷藏前的发育天数和冷藏天数的增加而降低;

    Developing pupae were less tolerant of low temperature than eggs . One day old pupae refrigerated for 3 days had an eclosion rate of only 80 % , less in older pupae and longer refrigeration .

  4. 温度超过45℃持续2h或土壤相对湿度达100%超过20h,蛹羽化率均为0。

    The eclosion rate of larvae is zero when the temperature is higher than 45 ℃ for 2 hours or the relative moisture of soil is 100 % for 20 hours .

  5. 双价棉对棉铃虫抗性种群2~5龄幼虫的死亡率、存活幼虫体重、化蛹率和成虫羽化率等生长发育的影响,均显著高于Bt棉。

    Mortality of larvae from 2nd to 5th instar was significantly higher , and the weight of survival larvae , pupation rate and eclosion rate were significantly lower fed on transgenic two genes cotton compared with that fed on transgenic Bt gene cotton .

  6. F1、F2代的后代雌性比例都增大,但F1代卵的孵化率和若螨羽化率降低,产卵量和成螨寿命增加,F2代却相反。

    The hatching rate of eggs and the emergence rate of the nymphs decreased while the number of eggs laid per female and the adult longevity both increased in F1 generation , which were totally in verse in F2 generation .

  7. 当灭幼脲浓度在20ppm时,对家蝇Ⅱ龄幼虫的死亡率为54%,阻碍羽化率为100%,对家蝇卵孵出的幼虫5天死亡率为100%。

    At 20 ppm of Mieyouniao , the mortality of the 2nd instar larvae of Musca d. vicina was 54 % and the failing rate of eclosion was 100 % . 100 % mortality of the larvae incubating from the treated eggs was produced .

  8. 但不同温周期处理后,其化蛹率和羽化率之间没有明显差异。

    However , the pupation rates and eclosion rates were not .

  9. 低温对家蝇室内种群不同日龄蛹羽化率的影响

    Impact of Low Temperature on Emergence Rate of Pupa of the Housefly

  10. 北方几种常见蝇类自然羽化率的比较研究

    Comparative study of natural emergence ratio of some common flies in north China

  11. 结果巴戟天低聚糖能显著提高果蝇性活力和羽化率。

    Results The oligosaccharide could significantly increase the hatching rate and sexual vitality .

  12. 提示室内饲养的家蝇各代羽化率稳定在较高水平,室内连续饲养较为成功。

    It could be deduced that the continuous rearing of the housefly was successful .

  13. 羽化率为0.7276。

    Emergence rate is 0 7276 .

  14. 相对含水量在30%~80%之间,蛹的羽化率较高。

    The emergence rate kept higher at the relative soil moisture between 30 % ~ 80 % .

  15. 在适宜的湿度范围内,丝光绿蝇的羽化率不受蛹期相对湿度变化的影响。

    The emergence rate could not be affected by change of the pupal relative humidity in the optimum range .

  16. 它们的平均孵化率、蛹化率和羽化率依次为84.61%、73.56%、92.28%,经9~12天可完成一个世代的繁殖。

    The average rates for hatching , pupation and eclosion were 84.61 % , 73.56 % and 92.28 % respectively .

  17. 室内设定的高温与时间多组合条件下,调查了置于细砂土中的美洲斑潜蝇蛹的羽化率。

    The effects of high temperature and time combinations were tested on the rate of emergence of Liriomyza sativae Blanchard .

  18. 孵化率为74.0%,化蛹率为62.6%,羽化率为58.8%。

    Hatch rate of the flea is 74.0 % , while pupation rate is 62.6 % and eclosion rate 58.8 % .

  19. 蛹的羽化率降低482%~994%,并羽化产生畸形成虫。

    About 48 2 % to 99 4 % reduction of emergence rate occurred in treated groups and some adults appeared abnormal .

  20. 而集琦虫螨克则对4龄幼虫的化蛹率、蛹羽化率及羽化后成虫的产卵量均有显著的降低作用。

    However , avermectin fed by 4th instar larvae could remarkably reduce the percentage of pupation and adult emergence , and egg production .

  21. 而6日龄黑蛹羽化率仅为30.67%,储存1日龄黑蛹羽化率优于其他日龄。

    And 6-day-old pupae and only 30.67 % , storage 1-day-old pupae and the rate of better than the other days . 4 .

  22. 实验观察了小菜蛾取食不同种白菜和油菜的主要生物学参数,包括幼虫、蛹的历期、蛹质量、化蛹率、羽化率和雌虫产卵量。

    Different Brassica vegetable crops and oil seed Brassica crops were applied to observe the biological parameters of Plutella xylostella under laboratory condition .

  23. 结论幼虫饲料添加鱼粉对丝光绿蝇室内连续饲养羽化率的影响主要表现在饲养后期,而在饲养初期无显著性影响。

    Conclusion To add fish meal into larval diet could affect emergence rate in the later generations of the blowfly when continuously reared .

  24. 照射后家蚕变态困难,结茧率、化蛹率和羽化率显著降低;

    The irradiated silkworms showed difficulty in their metamorphosis , and to be markedly lowered in cocooning rate , pupation rate and eclosion rate .

  25. 提高了田间出苗率和整齐度,以及产量。当土壤含水量较低或较高时,羽化率都明显受到抑制。

    The rate and evenness of emergence as well as production can be increased . Soil moisture could affect the emergence rate of the adults .

  26. 结果发现,除第3代羽化率为88.5%外,其余几代羽化率均高于90%。

    The results showed that the emergence rate of the third generation was 88.5 % , and the rest generations kept high rates of emergence .

  27. 不同磁场对小菜蛾卵孵化率无明显影响,但对成蛹率及羽化率有明显影响。

    Different intensities of magnetic field had significant effects on pupation rate and eclosion rate , while there was no obvious effect on egg hatching .

  28. 而对照组中菜蛾绒茧蜂结茧率和羽化率分别为27.2%-33.5%与99.2%-100%。

    While the rates of cocoon formation and adult emergence in control were 27.2 % ~ 33.5 % and 99.2 % ~ 100 % respectively .

  29. 丽蚜小蜂褐蛹随贮存时间的延长其羽化率等显著下降。

    The emergence rate of the wasps was positively correlated with the storage temperature , and negatively correlated with the length of the storage duration .

  30. 研究了椰心叶甲的饥饿耐受时间,饥饿状态下的化蛹率和羽化率。

    Laboratory experiments were conducted to examine the survival time , pupation rate and eclosion rate for the Brontispa longissima in the situation in lack of food .