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eupatorium
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  泽兰属
    Eupatorium adenophorum Spreng, crofton weed or pamakani in English, belonging to Composite, is a perennial weed species. This weed occurred originally from Mexico to Costa Rica in the South America, and it was taken to Europe as ornamental plant firstly, then to Australia and Asia.
    紫茎泽兰(Eupatorium adenophorum Spreng.),英文名为Crofton weed或Pamakani,为菊科泽兰属多年生杂草。
短句来源
    The study of plant invasibility has a very important meaning in forecasting invasive species. Anatomical, physiological and ecological adaptability of four Eupatorium species (Eupatorium odoratum, E.adenophorum, E.japonese and E.fortunei) were studied in this paper. The result showed that:Morphological and anatomical structures of four Eupatorium species were similar.
    鉴于植物入侵性研究对预测和控制入侵种的重大意义,我们对菊科泽兰属4种植物——飞机草(Eupatorium odoratum)、紫茎泽兰(Eadenophorum)和近缘植物泽兰(E.japonese)、佩兰(E.fortunei)的解剖学、生理生态适应性以及进化遗传等方面进行了研究,结果表明:
短句来源
    The karyotypes of two species belonging formerly to Eupatorium(Asteraceae) was studied. The karyotype of Chromolaena odorata(L.)
    报道了菊科(Asteraceae)原泽兰属(Eupatorium)2种植物的核型,飞机草(Chromolaenaodorata(L.)
短句来源
  泽兰
    Invasion Mechanisms of Alien Species, Eupatorium Adenophorum Spreng.
    外来物种紫茎泽兰Eupatorium adenophorum Spreng入侵机制的研究
短句来源
    The effect of ethanol extract of Eupatorium adenophorum Spreng on growth, development and reproduction of the cotton bollworm, Helicoverpa armigera (Hübner), was bioassayed in the laboratory.
    采用室内生物测定法研究了紫茎泽兰Eupatorium adenophorum Spreng乙醇提取物对棉铃虫Helicoverpaarmigera(Hbner)生长发育和繁殖力的影响。
短句来源
    Predicting the Potential Invasive Distribution for Eupatorium adenophorum Spreng. in China
    紫茎泽兰Eupatorium adenophorum Spreng.在中国入侵分布预测(英文)
短句来源
    Study of Floral Organ Differentiation and Embryology in Eupatorium adenophorum—an Exotic Plant
    外来入侵种——紫茎泽兰花芽分化和胚胎学研究
短句来源
    Study situation for eupatorium adenophorum
    紫茎泽兰研究概况
短句来源
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  “eupatorium”译为未确定词的双语例句
    Invasion Mechanism and Control Research of Eupatorium Odoratum a Kind of Harmful Invasion Plant
    有害入侵植物飞机草入侵机理与控制研究
短句来源
    , Piper betle L., Artocarpus heterophyllus Lam. , Anacardium occidentale L., Eupatorium odoratum L., Mimosa pudica L.. In the flow rate of 100mL/min and 140mL/min, the rate of first choice and last choice of A.
    et Vant.、假蒟Piper betle L.、菠萝蜜Artocarpus heterophyllus Lam.、腰果Anacardium occidentale L.、飞机草Eupatorium odoratum L.、含羞草Mimosa pudica L.。
短句来源
    Eupatorium odoratum Linn, is a perennial grass or subshrub of the genus of Eupatorium(Compositae) , which has become a forestry harmful plant in China.
    飞机草(Eupatorium odoratum Linn.)
短句来源
    Distribution, mischief and preliminary chemical analysis of Eupatorium odoratum Linn in Guangdong
    飞机草在广东的分布、危害及化学成分预试
短句来源
    The damage and control measures of Eupatorium odoratum
    飞机草的危害及防治措施简介
短句来源
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  eupatorium
aeruginosus from Eupatorium cannabinum), at the highest extreme (2.098 μg PA/mg dw) the concentration in the beetles was a 1000 fold higher than in the plant leaves (L.
      
We determined the complete nt sequences of the DNA-A genome and its cognate DNAβ satellite molecules in isolates of Tobacco leaf curl Japan virus, Honeysuckle yellow vein mosaic virus, Eupatorium yellow vein virus in Japan.
      
Sequence analysis showed that they had highest sequence identity with DNAβ of Eupatorium yellow vein virus (AJ438938) (44.0, 43.9 and 45.6% identity).
      
TbLCJV, TbLCJV-[Jp2], TbLCJV-[Jp3], TbLCJV-[Koc], TbLCJV-[Yam], Honeysuckle yellow vein mosaic virus (HYVMV), Eupatorium yellow vein virus (EpYVV), EpYVV-[MNS2], EpYVV-[SOJ3], EpYVV-[Yam] and EpYVV-[Tob] are monophyletic.
      
While our data are from three species of Eupatorium, we have long noted the syndrome in other Eupatorieae and other tribes in the Compositae.
      
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Procecidochares utilis Stone, an introduced host specific stem gall fly of crofton weed (Eupatorium adenophorum Spreng), has 4. to 5 generations a year in Kunming, Yunnan Province. The developmental period of eggs larvae, pupae and adults are 3-5, 25-30, 20-25, and 7-11 days, respectively. Results of field investigations and laboratory studies showed that parasitization by the fly affected the growth and sexual reproduction of the weed. The number of flowers of the parasitized weed decreased 40-80%, while...

Procecidochares utilis Stone, an introduced host specific stem gall fly of crofton weed (Eupatorium adenophorum Spreng), has 4. to 5 generations a year in Kunming, Yunnan Province. The developmental period of eggs larvae, pupae and adults are 3-5, 25-30, 20-25, and 7-11 days, respectively. Results of field investigations and laboratory studies showed that parasitization by the fly affected the growth and sexual reproduction of the weed. The number of flowers of the parasitized weed decreased 40-80%, while seed germination decreased 25-30%.

野外观察和室内试验表明:紫茎泽兰的专食性天敌泽兰实蝇,在昆明地区周年可完成4~5个世代,卵、幼虫、蛹和成虫历期分别为3~5、25~30、20~25和7~11天。由于泽兰实蝇的寄生,使紫茎泽兰的生长繁殖显著受到抑制,开花数减少40~80%,种子萌发率减少25~30%。

The Eupatoriun adenophorum Spreng appeared in southern Yunnan in 1960's is the weeds of the wasteland. In order to control it's harm a series of basic researches from the seed ecology to repjoductive characters was carried out. The effective preventive measures were put forword. The paper is based on autecolo -gy. Some results are reported as follows.1. The tiny seeds disperse mainly in the topsoil lees than 0.5cm deep. The rate of seed-sprouting is about 50%. They germinate best in the damp soils on pH.5-6...

The Eupatoriun adenophorum Spreng appeared in southern Yunnan in 1960's is the weeds of the wasteland. In order to control it's harm a series of basic researches from the seed ecology to repjoductive characters was carried out. The effective preventive measures were put forword. The paper is based on autecolo -gy. Some results are reported as follows.1. The tiny seeds disperse mainly in the topsoil lees than 0.5cm deep. The rate of seed-sprouting is about 50%. They germinate best in the damp soils on pH.5-6 from June to July. They don't germinate in darkness.2. The buds of Eupatorium adenophorum are bred in the last of November. The flowers bloom in the late of February. The seeds ripen in April to May. Then, the plant partly dies and sprouts out new buds in May. The highest peak of nutritional growth is from June to September.3. Eupatorium adenophorum growing on fertile soil needs the moisture of soil, that is above 16%. the plant will stop permanently photosynthesis, when the moisture content of soil is below 15%. If it is below 11%, the plants will die completely.4. The growing activity of Eupctorium adencphorum depends on the temperature of 10℃ or more. If the average temperature of ten days is below 5℃ or absolute temperature is below -4.5℃.The parts above ground of the plant will suffer freezing harm. If average temperature of ten days is below 0℃ or the lowest is -10℃, the plant will die completely.5. According to photosynthelic character of Eupatorium adenophorum, it belongs to one of C3 plants.6. The reproductive capacity of Eupatorium cdenophorum is the strongest between 3rd-5th years of growing. Then, it comes down gradually every years. The sprouting ability of the separate rhizomes is strong. The pure roots haven't sprouting ability.

紫茎泽兰为滇南六十年代出现的一种荒山害草。为控制其危害,我们开展了从种子生态学到繁殖特性等一系列的基础研究工作,目的在于掌握其生长发育过程中的薄弱环节,从中提出有效的防除措施。 本文报道了紫茎泽兰的生长发育规律,影响生长的主要生态因素,光合特性,不同年龄级杂革的有性繁殖能力,种子在土层中的分布与萌发,以及无性繁殖特性等。

Crefton weed (Eupatorium adenophorum) has a great influence to the development of agriculture, forestry, livestock husbandry and sideline in Yunnan province and even in southwest China. To control it effectively, a biological control strategy is put forward. In view of optimal control, the authois made a primaiy study on P. utilis-E. adenophorum system. The status equation of optimal control system can be summarized as:(?)=2.140282Y-0.029968Uthe optimal control trail:U~*(t)=14285.7715 exp(-2.140878t)the...

Crefton weed (Eupatorium adenophorum) has a great influence to the development of agriculture, forestry, livestock husbandry and sideline in Yunnan province and even in southwest China. To control it effectively, a biological control strategy is put forward. In view of optimal control, the authois made a primaiy study on P. utilis-E. adenophorum system. The status equation of optimal control system can be summarized as:(?)=2.140282Y-0.029968Uthe optimal control trail:U~*(t)=14285.7715 exp(-2.140878t)the optimal status trail:Y~*(t)=100 exp(-2.140878t)here Y is the percentage of unparasitized shoot, U is the number of P. utilis. It is optimal that one P. utilis holds ten shoots of E. adenophorum for its releasing on field. On basis of these results, the strategy of releasing P.utilis in poly-sites and one site at several times was advanced firstly.

本文根据野外泽兰实蝇种群15个世代的调查资料,利用契贝谢夫正交多项式拟合了泽兰实蝇、紫茎泽兰的空间格局。阐明了泽兰实蝇空间格局的序列变化及紫茎泽兰空间格局的特点;揭示了泽兰实蝇空间格局的特点受当地主风及寄主紫茎泽兰空间格局特点的影响;并从最优控制系统的角度对泽兰实蝇-紫茎泽兰系统作了初步探讨。首次提出了最佳释放虫量指标为每条虫占有10条枝条。这些结果为多点释放及定点多次释放泽兰实蝇防治紫茎泽兰这一生防策略提供了理论基础。

 
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