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bioassay
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  生物测定
    BIOASSAY OF JDS-CPV ON THE PINE CATERPILLAR DENDROLIMUS PUNCTATUS
    日本赤松毛虫质型多角体病毒Dendrolimus Spectabilis CPV对马尾松毛虫的生物测定
短句来源
    Research Status of Mycotoxin Bioassay Ⅰ.Bioassays on Plant and Tissue Organ Levels
    真菌毒素生物测定方法研究概况 Ⅰ.植株和组织器官水平的生物测定
短句来源
    Resistance mechanisms to pyrethroids were investigated in Bemisia tabaci (Gennadius)with synergist bioassay, biochemical analysis and RT-PCR amplification for ⅡS4-6 region of sodium channel gene.
    通过增效剂生物测定、生化分析以及钠离子通道基因ⅡS4-6cDNA片段的RT-PCR扩增,探讨了烟粉虱Bemisia tabaci(Gennadius)对拟除虫菊酯杀虫剂的抗性机理。
短句来源
    Bioassay showed that this strain appeared high insecticidal activity against many kinds of agricultural pests such as Pieris rapae L., Chilo suppressalis and Borbo cinnara Wallace.
    生物测定结果表明,该菌对菜青虫(Pieris rapae L.)、二化螟(Chilo suppressalis)和稻苞虫(Borbo cinnara Wallace)等多种农业害虫具有很高的毒杀作用。
    THE STUDY ON FUNGICIDAL BIOASSAY METHOD
    杀菌剂生物测定方法的研究
短句来源
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  生物测试
    The bioassay showed some target compounds had good insect growth regulating- activity.
    生物测试结果表明 ,该系列化合物有一定的昆虫生长调节活性。
短句来源
    Bioassay, the method used to determine the insect\|resistant activity of Bt cotton to bollworm inside the country, can not determine the expression levels of Bt protein.
    目前国内普遍使用生物测试法检测Bt棉对棉铃虫的杀虫活性 ,但无法定量检测Bt棉中杀虫蛋白的表达量。
短句来源
    The bioassay results showed that some of the title compounds possessed a satisfactory activity. BCT 5 showed 85% inhibitory effect on PDA plate of Sphaerotheca fuliginea (Sf) in vivo at 125 mg/L. BCT 2 showed 100% inhibitory effect on PDA plata of Xanthomonas oryzae (Xo) in vitro at 50 mg/L.
    生物测试结果表明 ,部分化合物显示出较好的杀菌活性 ,如 BCT- 5在盆栽实验中于 12 5 mg/L下能 85 %杀死瓜白粉病菌 ,BCT- 2在离体实验中于 5 0 mg/L下能 10 0 %杀死白叶枯病菌
短句来源
  生物检定
    Quantitative determination of mildiomycin by bioassay and HPLC
    米多霉素的生物检定法与HPLC测定法
短句来源
    A BC1 population derived from a artificially selected elite clone "Populusdeltoides Bartr. CL. 'Nankang1'" with borer properties back-cross with its maleparent as materials, by using the methods of bioassay and quantitative trait locus(QTLs), the chemical plant defense mechanism was studied in the erperiment.
    本文以经人工选育出对天牛具有抗性的优良美洲黑杨无性系一南抗杨1号(Populuf. deltoides Bartr.CL.‘Nankangl’)与其父本回交产生的回交一代(BC1)为实验材料,通过生物检定(Bioassay)和数量性状基因定位(Quantitative Trait Locus,QTLs)的方法,研究了植物的化学防御机理。
短句来源
    In vivo bioassay test was carried out on ALB larvae with cmpounds in vitroat first time.
    本文首次采用离体(in vitro)化学物质,加入至人工饲料中对天牛幼虫进行活体生物检定(bioassay in vivo)。
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  “bioassay”译为未确定词的双语例句
    Bioassay of Chitin Inhibitor:ATABRON with Cultured Cuticle of Chilo suppresalis
    运用培养的二化螟表皮检测几丁质抑制剂—ATABRON生物活性
短句来源
    Standard Bioassay on the Microbial Pesticide 8010
    苏云金杆菌8010杀虫剂毒力效价测定
短句来源
    STUDIES ON BIOASSAY FOR TOXICITY OF BT 8010 USING TWO KINDS OF INFECTIVE FEED
    不同饲毒法测定Bt8010毒力效价研究
短句来源
    Study on the index insects for entomopathogenic fungus Beauveria bassiana bioassay
    白僵菌产品生测指示昆虫的研究
短句来源
    Bioassay results indicated that diallyl ether and tributyl ether analogues exhibited higher insecticidal activity than Celangulin V against 3rd-instar larvae of Mythimna separata at the concentration of 10 mg/mL.
    初步的杀虫活性测定结果表明:目标化合物对3龄粘虫Mythimna separate幼虫具有一定的杀虫活性,其中二烯丙基醚和三丁基醚衍生物(化合物d和f)在10mg/mL的浓度下该幼虫的死亡率分别为86.2%和82.7%。
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  bioassay
Bioassay showed that some of the title compounds had high plant-growth regulatory activity.
      
The antifeedant rate in choice test reached 62%-86% at the dose 2.5 mg/mL, while in non-choice bioassay the rate was only 20%-29%.
      
In choice bioassay, the antifeedant rate increased with larval instars of C.
      
The obtained myoblast cultures were used in the clinical tests of cell-mediated gene therapy of Duchenne's muscular dystrophy as well as in the bioassay for the effects of biologically active compounds.
      
On bioassay, BBAP1 exhibited antiviral activity against sunnhemp rosette virus infecting Cyamopsis tetragonoloba leaves in which 95% inhibition of local lesion formation was observed.
      
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The present paper deals with the results of the studies on the nuclear polyhedrosis-virus disease of the cotton leafworm, Prodenia litura.It was observed that the polyhedra are irregular in shape; and their diameters range from 1.2μ to 3.4μ, mostly 1.9μ. The virus particles are either in single rods or in bundles. The size of the single rods is 335×90mμ, and that of the bundles is 335×140mμ.The results of our bioassay study showed that the mortality rate of the treated larvae depends on the concentration...

The present paper deals with the results of the studies on the nuclear polyhedrosis-virus disease of the cotton leafworm, Prodenia litura.It was observed that the polyhedra are irregular in shape; and their diameters range from 1.2μ to 3.4μ, mostly 1.9μ. The virus particles are either in single rods or in bundles. The size of the single rods is 335×90mμ, and that of the bundles is 335×140mμ.The results of our bioassay study showed that the mortality rate of the treated larvae depends on the concentration of the virus suspension and the larval instar. The LC50 for the third-instar larvae at 25℃ is 1×105.3 polyhedra/ml. The time of larval death after the treatments is influenced by the polyhedral, suspension concentration and enviromental temperature.The polyhedra may loss their infective capacity a few days after being deposited on the foliage. The inactivation rate of the virus was determined by the duration of exposure to sunlight and by the concentration of the polyhedral suspension. The loss of the infective capacity was caused by the germicidal effect of ultraviolet irradiation.Simultaneous combined use of B. thuringicnsis with the nuclear polyhedrosis virus would not enhance the killing efficiency on Prodenia litura.It was found that Agrotis ypsilon, A. segetum, Leucania separata and Bombyx mori are not susceptible to the nuclear polyhedrosis virus of Prodenia litura.The application of virus for control of the cotton leafworm Prodenia litura in the field seems practicable.

本文报道斜纹夜蛾核多角体病毒病的实验室和田间试验结果。 多角体形状不规则,直径平均1.9微米。病毒粒子杆状,单个或成束存在。单个粒子大小为335×90毫微米,病毒束的直径140毫微米。生物测定结果表明,幼虫死亡率依多角体浓度和虫龄而变化,在25℃条件下,3龄幼虫的致死中浓度为1×10~(5.3)多角体/毫升。龄期相同时,幼虫死亡速度依多角体浓度和环境温度而变化。多角体喷洒到植物叶面后,数日内可以损失大部分感染力,损失的速度与阳光照射的时间长短以及多角体浓度有关。感染力的损失主要是由于紫外光的灭菌作用。病毒与苏云金杆菌同时感染没有增效作用。斜纹夜蛾核多角体病毒对小地老虎、黄地老虎、粘虫和家蚕无感染力。田间初步试验表明,应用病毒防治斜纹夜蛾是可能的。

This paper reports the results of studies on the nuclear polyhedrosis virus-of the cotton bollworm Heliothis armigera.The virus was isolated in 1974 from dead boll-worms collected from cotton fields in Chinchow district of Hupeh Province.It was designated as VHA-273.It is observed that the polyhedra are hexagonal,pentahedron,cubical or irregular in shape,varying from 1.25 to 5.0 p in diameter.Serious pathological changes were in the fat-body,epidermis,tracheal matrix and other tissues of the diseased insects...

This paper reports the results of studies on the nuclear polyhedrosis virus-of the cotton bollworm Heliothis armigera.The virus was isolated in 1974 from dead boll-worms collected from cotton fields in Chinchow district of Hupeh Province.It was designated as VHA-273.It is observed that the polyhedra are hexagonal,pentahedron,cubical or irregular in shape,varying from 1.25 to 5.0 p in diameter.Serious pathological changes were in the fat-body,epidermis,tracheal matrix and other tissues of the diseased insects and the former two seemed to be the most susceptible tissues.The muscle bundles were not affected.Our bioassay showed that the susceptibility of the larvae to the NPV varied with dosage,larval instar and temperature.The first and second instars were the most susceptible stages;and their mortality rates at 1×106 PIBs/ml were 85% and 80% and the time lasting were 6 and 8 days respectively.Larvae of fifth and sixth instars were not so susceptible,especially when the temperature exceeded 33℃.Cross infections of the NPV with tobacco budworm,Heliothis assulta,was susccessful.In 1975,from July to September,field tests with the NPV to control bollworms were made in cotton fields about 102 mil's at Kung-an County of Hupeh Province.The concentrations used were 1.5×1010 PIBs/mu,3×1010 PIBs/mu and 6×1010 PIBs/mu.The results showed that the NPV was better than the chemical insecticides 1605+DDT.Combined use of the NPV with dilute sevin and Bacillus thurin-giensis suspensions were also tested;and the results were either better or as effective as the NPV or sevin used alone.The application of the NPV VHA-273 to control bollworms in the field seems promising.

自1973—1974年以来,在湖北荆州地区微生物站筛选出一批棉铃虫病毒毒株,其毒力均为80%以上,有的高达100%。其中毒力较强而又比较稳定的VHA-273,经病虫组织切片观察,确定其为核多角体病毒。1974—1975年除对棉铃虫病毒病的组织病理变化作了初步观察外,又继续在室内外对病毒的毒力、剂量与虫龄、温度的关系,及寄主饲料对病毒产量的影响等,进行了一系列的试验,并用VHA-273生产部分病毒,为大田防治试验作了准备。 1975年7—9月,用VHA-273生产的病毒,在湖北公安县雷州公社约102亩的早发棉田进行示范试验,对第2代及第4代棉铃虫的防治效果,先后调查了5次,最后对试验田、对照田及邻田又作了天敌调查,结果均表明试验田的虫口下降率,花、蕾及青铃受害率等,均低于1605+DDT及西维因的对照田,为棉田的生物防治提供了有希望的微生物农药。 VHA-273棉铃虫核多角体病毒,对烟青虫的毒力很强,对两种害虫能交叉感染。因此,它可用于烟青虫的防治。

On the basis of previous studies through field trapping with dissected parts of the female body or painted females, electroantennogram and quantitative bioassay of the male moth, it has been confirmed that the site where the sex pheromone in C. variegata is released is mainly in the terga cf the thorax. In connection with the

通过林间诱捕试验,触角电位(EAG)测定和室内定量生测,确定了大袋蛾雌虫主要由胸部背板释放性信息素。

 
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