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biotype
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  生物型
    A NEW BIOTYPE OF Bacillus thuringiensis SD-5
    苏云金杆菌的一个新生物型—SD-5菌株
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    The results indicated that all 8 populations were of the biotype B.Resistance ratio of the B.tabaci adults to imidacloprid , acetamiprid and thiamethoxam was detected as 1.22, 3.28 and 2.49 fold by using adult leaf-dip bioassay and 1.37, 4.27 and 3.26 fold by using systemic bioassay respectively, which showed the same resistant level detected by two bioassay methods.
    综合上述结果,说明福建省8个烟粉虱种群均属于生物型“B”。 采用浸叶生测法和内吸生测法测得的烟粉虱成虫对吡虫啉、啶虫脒和噻虫嗪的抗性比值分别为1.22、3.28、2.49倍和1.37、4.27和3.26倍,两种方法的测定结果是基本一致的。
短句来源
    Two susceptible varieties which were susceptible to biotype II ,the indica variety (IR26) was sensitive than the japonica (xiushui63) seemingly.
    在两种感褐飞虱生物型Ⅱ的品种,籼稻品种(IR_(26))似乎比粳稻品种(秀水63)对农药更敏感。
短句来源
    Thirty-two strains belonged to biotype III and fifteen belonged to I , which accounted for 58.1% and 27.3%. Biotype I in ginger was first reported.
    其中以Ⅲ型和Ⅰ型为主要的生物型,分别占总样的58.1%和27.3%,生物型Ⅰ在姜上首次报道。
短句来源
    62.5% and 12.5% virulent strains belonged to biotype Ⅲ and reaction type b,but 54.1% and 25.0% avirulent strains belonged to biotype Ⅲ and reaction type b,respectively.
    脱毒前生物型Ⅲ的菌株占62.5%,反应型 b 的菌株占12.5%,而脱毒后生物型Ⅲ和反应型 b 的菌株分别为54.1%和25%。
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  “biotype”译为未确定词的双语例句
    The results showed that:(1)the specific amplified patterns using the primer H16 could distinguish biotype B populations from biotype Q populations and non-B/Q biotype population in Zhejiang province;
    结果表明:(1)引物H16对烟粉虱B型不同种群扩增的特异带,能有效区分烟粉虱B型和Q型、浙江非B/Q型种群;
短句来源
    (2)the genetic diversity of biotype Q was higher than that of biotype B;
    (2)烟粉虱Q型种群各项遗传多样性指数均比烟粉虱B型的要高;
短句来源
    The resistant coefficient(R50/S50)of resistance biotype Monochoria korsakowii Regel et Maack.
    与感性相比,抗性雨久花对磺酰脲类除草剂农得时的抗性系数(R50/S50)值为10.3,对草克星的抗性系数(R50/S50)值为6.5;
短句来源
    A comparative study on the morphological and biological characteristics of the B biotype and a non-B biotype (China-ZHJ-1) of Bemisia tabaci (Homoptera: Aleyrodidae) from Zhejiang, China
    浙江B型与一非B型(China-ZHJ-1)烟粉虱形态学和生物学特性的比较研究
短句来源
    Competition between the B biotype and a non-B biotype of the whitefly, Bemisia tabaci (Homoptera: Aleyrodidae) in Zhejiang, China
    B型烟粉虱与浙江非B型烟粉虱的竞争
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  biotype
Genetic organization of 52 Vibrio cholerae El Tor biotype preseventh and seventh pandemic strains isolated in various periods was studied by PCR assay and DNA-DNA hybridization.
      
Genetic organization of 52 Vibrio cholerae El Tor biotype preseventh and seventh pandemic strains isolated in various periods was studied by PCR assay and DNA-DNA hybridization.
      
A callus culture derived from the resistant biotype retained resistance to both trifluralin (dinitroaniline herbicide) and amiprophosmethyl (phosphorothioamidate herbicide).
      
Finally, it was observed that, in two cases, one rare biotype of the parental varieties was involved in the crosses.
      
Occurrence of imazalil-resistant biotype of Penicillium digitatum in China and the resistant molecular mechanism
      
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The white culmo blight of wheat is a new disease in plateaus of Tibet,Chinghai and west Szechuan.There are two type of symptoms formed on leaf,sheath and stem,one is the stripe type and another the spot type.The funguson the cultural medium forms a light grey crust-yeast like colony with scantmycelium.The medium is tinted first rosy and then turns to coffee brown.Itproduces conidia in two forms,one in pycnidia and the other buds from themycelium directly.The growth temperature range for the fungus is from 0℃...

The white culmo blight of wheat is a new disease in plateaus of Tibet,Chinghai and west Szechuan.There are two type of symptoms formed on leaf,sheath and stem,one is the stripe type and another the spot type.The funguson the cultural medium forms a light grey crust-yeast like colony with scantmycelium.The medium is tinted first rosy and then turns to coffee brown.Itproduces conidia in two forms,one in pycnidia and the other buds from themycelium directly.The growth temperature range for the fungus is from 0℃ to29℃,and the optimum is at 15℃.The known host plants upto the presence areTriticum aestivum L.,Secale cereale L.and Agropyron Spp.It produces syste-mic stripe symptoms,when the spore suspension of this fungus either from pyc-nidium or from budding is inpculated onto the seed or seedling of wheat.Acc-ording to the morphology and the host range,the pathogen of white culmo bli-ght of wheat is identified to be Selenophoma donacis(Pass.)Sprague et A.G.Johnson.On basis of the characteristic symptoms of systemic stripe and thelower optimum growth temperature.This pathogen is considered to be an albo-culmo blight biotype of Selenophoma donacis(Pass.)Sprague et A.G.Johnson.

小麦白秆病是在青藏高原上为害小麦的一种新病害,在受害的叶、叶鞘及茎秆上产生草黄色条斑和椭圆形至长方形斑点两种症状。经鉴定病害由壳月孢属(Selenophoma)真菌引起。病菌在15℃黑暗条件下的马铃薯葡萄糖琼脂上培养,形成粘质状菌落,生长缓慢,不形成分生孢子器,而在菌丝上芽殖分生孢子;在15℃黑光灯照射下的燕麦琼脂等培养基上培养,形成分生孢子器。分生孢子器分生孢子新月形,无色,单胞,大小为17.9-26×2.6-3.6μ;而芽殖分生孢子的大小及形态变异较大。病菌的生长温度范围为0—20℃,以15℃为最适宜。其寄主有小麦、黑麦及冰草等。种子和幼苗经接种后,均产生系统性条斑症状。根据病菌的形态和寄主范围,小麦白秆病菌即Selenophoma donacis(pass)sprague efA.G.Johnson,由于S.donacis 只产生斑点症状,而小麦白秆病菌产生特有的系统性条斑症状,且发生温度偏低,所以认为小麦白秆病菌是在青藏高原特殊的生境条件下,形成的一个Selenophoma donacis(pass)sprague et A.G.Johnson的“白秆(albo-culmo)生态型。

In this paper,the responses of different rice varietes to differentbiotypes of brown planthopper Nilaparvata lugens(Stal)are observed.The survival rate,population build up and honeydew excretion of thisinsect are also studied.1)The responses of different rice varieties to various biotypes areunlike.TN_1 is the most suseceptible.Mudgo is susceptible to biotype 2.Both ASD_7 and IR_(36)are susceptible to biotype 3,but resistant to bio-type I and biotype 2,Rathu Heenati,Babawee,26376 and 25639...

In this paper,the responses of different rice varietes to differentbiotypes of brown planthopper Nilaparvata lugens(Stal)are observed.The survival rate,population build up and honeydew excretion of thisinsect are also studied.1)The responses of different rice varieties to various biotypes areunlike.TN_1 is the most suseceptible.Mudgo is susceptible to biotype 2.Both ASD_7 and IR_(36)are susceptible to biotype 3,but resistant to bio-type I and biotype 2,Rathu Heenati,Babawee,26376 and 25639 areresistant to all biotypes.2)The interactions between the brown planthopper(BPH)and thehost plants show that the survival rate of BPH nymphs on the suscep-tible varieties are significantly greater than that on the resistant varie-ties.Few nymph survive on the resistant varieties such as Rathu Hee-nati,Babawee,26367,and Ptb_(33).It is noted that the survival rate ofbiotype 2 is higher on Mudgo,lower on ASD_7;the reverse is true forbiotype 3.The female wieght of BPH is heavier on TN_1 than on either ASD_7or Mudgo.On Mudgo,biotype 2 weighs heavier than biotype 3;but onASD_7 it is just opposite.3)The effect of different varieties on nymphal development isshown that Mudgo supports a larger population of biotype 2,while ASD_7supports a larger population of biotpye 3.The development of nymph is worse on resistant varieties,such asbiotype 2 on ASD_7,or biotype 3 on Mudgo.The TN_1 can support alarger population and has a better development for all biotypes.4)The population buildup of BPH on the susceptible varieties suchas TN_1,Mudgo(for biotype 2)and ASD_7(for biotype 3)are signifi-cantly higher than those on the resistant varieties.The susceptiblevarieties can support a larger population.5)The heaviest honey dew are excreted by BPH biotype fed on thesusceptible varieties such as TN_1,Mudgo(for biotype2),or ASD_7(forbiotype 3).The area(mm~2)or color intensity(mm)of honey dew res-ponsed by ninhydrin on the susceptible varieties are greater than thoseon the resistant ones.

水稻品种对褐飞虱的不同生物型反应是不相同的。试验结果证实:(1)褐飞虱若虫在敏感性品种上的生存率显著地高于抗性品种。在TN_1上,无论那种生物型的生存率均很高;而栖息在Mudgo的褐飞虱若虫,其生存率以生物型2的最高,而生物型1与生物型3的均很低,栖息在ASD_7的若虫,以生物型3的生存率最高。(2)褐飞虱在敏感品种上的后代群体密度显著地比抗性品种的大。生活在敏感品种的若虫,发育进度较抗性品种的快,并且身体较重。(3)在敏感品种取食的飞虱,其分泌的蜜露量较抗性品种的多,生物型2取食Mudgo的和生物型3取食ASD_7的均分泌较多的蜜露。上述结果说明了水稻品种抗褐飞虱的机制属抗生性范畴。

Results of comparative studies of 22 isolates of Pseudomonas solanac-earum Smith from nine host plants, including tomato, eggplant, potato,peanut, sweet potato, ginger,mulberry,common olive and horsetail beef-wood, proved that they are similar in their main morphological,cult-ural physiological and biochemical properties.The causal organism ofthe blast disease of the sweet potato, formerly identified as a new spec-ies Pseudomonas batatas Tseng and Fan,should be renamed as Pseudomonassolanacearum Smith. Besides...

Results of comparative studies of 22 isolates of Pseudomonas solanac-earum Smith from nine host plants, including tomato, eggplant, potato,peanut, sweet potato, ginger,mulberry,common olive and horsetail beef-wood, proved that they are similar in their main morphological,cult-ural physiological and biochemical properties.The causal organism ofthe blast disease of the sweet potato, formerly identified as a new spec-ies Pseudomonas batatas Tseng and Fan,should be renamed as Pseudomonassolanacearum Smith. Besides differences in pathogenicity, isolates fromdifferent hosts plants also show some minor differences in physiologicaland biochemical properties. Based upon their pathogen icity, isolates fromthe tomato,egg plant,ginger,peanut,sweet potato,common oliveand horsetail beefwood can be grouped in the race I described by Bud-denhagen,isolates from the potato belong to the race 3.Based upon theirability to utilize different sugars and alcohols, isolates from the tomato,egg plant, peanut and common olive belong to the biotype Ⅱ,isolatesfrom the sweet potato, ginger and horsetail beefwood belong to the bio-type IV,isolates from potato belong to the biotype Ⅱ.According to theirability to ferment the carbohydrates used to diffrentiate the biotypes,isolates from the mulberry tree can be put in the biotype I,but theyare quite differrent from the race I in their pathogenicity and hypersen-sive reactions. The optimun temperature of growth of the isolates fromthe potato, sweet potato and mulberry is around 28℃.They belong tothe low temperature type.Those isolates of the low temperature typewere found to be less tolerant to the higher concentrations of salt solut-ions.

根据番茄、茄、马铃薯、花生、甘薯、姜、桑、油橄榄、木麻黄九种植物上22个青枯菌的菌株,进行形态、染色、生理生化反应、致病性等方面的比较研究的结果,证明它们都是属于青枯假单胞菌(Pseudomonas solanacearumSmith)。因此,以前报道的甘薯瘟的病原细菌Pseudomonas batatas Tsengand Fan,应改为Pseudomonas solanacearum Sncith,不同寄主青枯菌菌株,它们的有些生理生化反应有明显的差异,但更为明显的是它们的致病性不同。测定的7种寄主上的青枯菌菌株,根据它们对茄的致病力很强,番茄、茄、姜、花生、甘薯、油橄榄和木麻黄菌株可归入小种1;马铃薯菌株对马铃薯的致病力很强,而对茄、番茄和辣椒的致病力中等,归入小种3。属于小种1的7种植物的菌株,致病性也有所不同,它们可作为不同的菌系。桑菌株的致病性较为特殊,很难归入已报道的小种。根据对6种糖和醇的利用以及脱氮作用的能力,番茄、茄、花生、油橄榄菌株属生物型Ⅱ;姜、木麻黄、甘薯菌株属生物型Ⅳ;马铃薯菌株属生物型Ⅱ,桑菌株属生物型Ⅰ。但桑菌株人工接种不侵染茄和马铃薯。烟叶过敏反应的测定表现黄斑而从未表现过敏...

根据番茄、茄、马铃薯、花生、甘薯、姜、桑、油橄榄、木麻黄九种植物上22个青枯菌的菌株,进行形态、染色、生理生化反应、致病性等方面的比较研究的结果,证明它们都是属于青枯假单胞菌(Pseudomonas solanacearumSmith)。因此,以前报道的甘薯瘟的病原细菌Pseudomonas batatas Tsengand Fan,应改为Pseudomonas solanacearum Sncith,不同寄主青枯菌菌株,它们的有些生理生化反应有明显的差异,但更为明显的是它们的致病性不同。测定的7种寄主上的青枯菌菌株,根据它们对茄的致病力很强,番茄、茄、姜、花生、甘薯、油橄榄和木麻黄菌株可归入小种1;马铃薯菌株对马铃薯的致病力很强,而对茄、番茄和辣椒的致病力中等,归入小种3。属于小种1的7种植物的菌株,致病性也有所不同,它们可作为不同的菌系。桑菌株的致病性较为特殊,很难归入已报道的小种。根据对6种糖和醇的利用以及脱氮作用的能力,番茄、茄、花生、油橄榄菌株属生物型Ⅱ;姜、木麻黄、甘薯菌株属生物型Ⅳ;马铃薯菌株属生物型Ⅱ,桑菌株属生物型Ⅰ。但桑菌株人工接种不侵染茄和马铃薯。烟叶过敏反应的测定表现黄斑而从未表现过敏反应,它的归属尚待进一步研究。青枯假单胞菌划分为小种和生物型,目前意见还不一致,加上我们测定的菌株有限,有关这方面的工作,也待进一步研究。此外,马铃薯、甘薯和桑菌株的生长适温是28℃,它们属于低温型菌株。这些低温型菌株的耐盐性较差。

 
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