助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   parasitic 在 植物保护 分类中 的翻译结果: 查询用时:0.195秒
图标索引 在分类学科中查询
所有学科
植物保护
无线电电子学
水产和渔业
预防医学与卫生学
感染性疾病及传染病
畜牧与动物医学
蚕蜂与野生动物保护
医药卫生方针政策与法律法规研究
林业
更多类别查询

图标索引 历史查询
 

parasitic
相关语句
  寄生
    THE SPECIES AND GENUS DISTRIBUTION AND POPULATION DYNAMICS OF PLANT PARASITIC NEMATODES IN COTTON FIELDS OF SHANGHAI
    上海棉田植物寄生线虫的种属分布和群体动态
短句来源
    THE PARASITIC ABILITY OF SOUTHERN ROOT KNOT NEMATODES (MELOIDOGYEN INCOGNITA) RACE 2 AND 3 ON COTTON
    南方根结线虫(Meloidogyne incognita)小种2,3号对棉花的寄生
短句来源
    STUDY ON THE PARASITIC FUNGI ON SCLEROTIA OF SCLEROTINIA SCLEROTIORUM IN RAPE
    油菜菌核病菌(Sclerotinia sclerotiorum)菌核上寄生真菌研究
短句来源
    PRELIMINARY STUDY ON THE VARIATION OF RELATIVE PARASITIC FITNESS ATTRIBUTES OF DRECHSLERA MAYDIS
    玉米小斑病菌(Drechslera maydis)相对寄生适合度属性变化的初步研究
短句来源
    IDENTIFICATION OF PLANT PARASITIC NEMATODES ON TAIWAN ORCHIDS
    台湾兰花植物寄生线虫的鉴定
短句来源
更多       
  寄生的
    punctulatus Fallen can consume 1138 nymphs of P. sinica, In spite of this relative high rate of prey consumption, it is only the third most important natural control agent after the parasitic wasp and precipitation.
    被啮小蜂寄生的若虫数量也不断增加,6月中旬其寄生率最高可达25%~35%,到7月上旬,第二代木虱的虫口增长很快,啮小蜂的寄生率也随之增加。
短句来源
    The study revealed the mycoparasitisic mechanism of Monacrosporium janus, a parasitic fungus of both fungal sclerotium and nematodes, in respect of enzymology.
    本论文对食线虫真菌两栖单顶孢(Monacrosporium janus)菌寄生的酶学机理进行了研究。
短句来源
    In this paper Hassell-Rogers's theoretical formula was obtained by this method with data of parasitic rate of different densities of Trichogramma ostriniae and its host.
    文中以玉米螟赤眼蜂在不同自身密度和寄主密度下寄生的实验数据作实例,用上述方法求出了Hasscll-Rogcrs模型的理论公式。
短句来源
    The studies indicated that there are 12 species of parasitic wasp which parasite wheat blossom midges in Shaanxi province, 5 species of which parasite Sitodiplosis mosellana Gehin, 4 species parasite Contarinia tritici Kirby and 3 species parasite the two species of wheat blossom midges.
    初步查明在陕西麦区寄生小麦吸浆虫的寄生蜂有12种。 其中,寄生麦红吸浆虫(SitodiplosismoselanaGehin)的5种,寄生麦黄吸浆虫(ContariniatriticiKirby)的4种,2种吸浆虫均寄生的3种。
短句来源
    The life table for field population of citrus whitefly free of parasitic fungus Aschersonia was studied in Huangyan,Zhejiang Province in 1995-1997.The population trend indexes for its lst,2nd and 3rd generation were 8.91,4.08 and 5.94,respectively.
    1995-1997年在浙江黄岩用生命表的方法研究了未受座壳饱菌寄生的柑桔粉虱的自然种群动态。
短句来源
更多       
  寄生性
    SEXUAL DIFFERENTIATION OF PARASITIC HYMENOPTERA THROUGH NUTRITION.2. PRELIMINARY ANALYSIS IN BIOCHEMICAL COMPOENETS OF HOST EGGS OF ANASTATUS SP
    营养和寄生性膜翅目的性分化 2.平腹小蜂寄主卵成分初步分析
短句来源
    They represent 31.21%,27.15%,25.49%,1.28% and 14.87% in number of individuals and 47.60%,2.69%,14.07%,3.29%,and 32.34% in number of species for phytophagous insects,scavenger insects,predacious insects,parasitic insects,and spiders respectively.
    各亚群落个体数分别为:植食性昆虫占31.21%,腐生性昆虫占27.15%,捕食性昆虫占25.49%,寄生性昆虫占1.28%,蜘蛛占14.87%; 种类数则分别占47.60%,2.69%,14.07%,3.29%,32.34%。
短句来源
    Investigations were made during 1982 on the parasitic nematodes on rubber trees in Hainan Island. Based on their morphological characteristics, 23 species of parasitic nematodes were identified, which were considered to belong to 11 genera in 9 families of 2 orders.
    1982年,对海南岛橡胶树的寄生性线虫进行了调查,根据线虫的形态特征鉴定出23个种,隶属于2目,9科,11属。
短句来源
    There is a total of 15 genera of parasitic nematodes, which the Ditylenchus, Aphclencoides and Tylenchus are in the major-ity.
    寄生性线虫占总数的38.8%。 寄生线虫共有15个属,其中以Ditylenchus(茎线虫属)、Aphelenchoides(滑刃线虫属),Tylenchus(垫刃线虫属)为最多。
短句来源
    From 1981 to 1985, a total of 391 diseases and 183 species of pathogens were collected on 55 kinds of vegetables, in which there were Fungi (135), Viruses(l8), Bacteria(g), Nematodes (14), Parasitic flowering plants (2) and Nonparasitic diseases (4) .
    1981—1985年,作者对北京蔬菜病害进行了基本调查,共收集了55种蔬菜上的402种病害. 内有病原183种,其中病原真菌135种、病毒18种、细菌9种、寄生线虫14种、寄生性种子植物2种、非侵染病害5种.
短句来源
更多       
  “parasitic”译为未确定词的双语例句
    Under 20 ℃,parasitic rates of B.bassiana to M.alternatus by three kinds of concentration of B.bassiana spore suspension were 58%、95% and 100% respectively.
    20℃时3种浓度剂量的白僵菌孢悬液在松墨天牛体内有效继代校正宿存率均达最高,分别为58%、95%、100%。
短句来源
    60 - 75 blocks of yellow sticky boards per 667 nf could trap 20.52% -23.46% adults of the field population, which could effectively control the larval amount of next generation, and the boards had no influence on parasitic enemies, but to increase and protect the nature enemies.
    田间每667m2放置60~75块黄色粘胶板可诱杀20.52%~23.46%的成虫,有效地控制美洲斑潜蝇下代幼虫发生量,且黄色粘胶板不影响寄生性天敌,有助长与保护天敌的作用。
    2) the quantity of plant parasitic nematodes was extremely large.
    (2)线虫数量极多。
    Egg parasitic wasps of pine caterpillars in the Northeastern area of Jiangxi Province
    赣东北地区的松毛虫卵寄生蜂综述
短句来源
    Investigation on the parasitic wasps on moths attacking hairy chestnuts in Zhejiang Province
    浙江省板栗蛾类害虫寄生蜂种类调查
短句来源
更多       
查询“parasitic”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  parasitic
Ecological mechanisms and prospects for utilization of toxins from parasitic hymenopterans
      
In this study, advances in the researches on parasitic hymenopteran toxins are summarized in terms of the production, categories, components, properties, ecological functions and mechanisms.
      
Toxins of parasitic hymenoptera play an important adaptive role.
      
Their ancestors were parasitic on the ancestors of some plants of Loranthaceae by chance during the Tertiary.
      
Such activities could be the activation and maintenance of an immune system in response to parasitic infestation.
      
更多          


The injurious insects of cotton of this province, however, have not hithertobeen carefully studied, especially the pink bollworm, which annually reducesthe cotton production by 10 to 30 per cent. The present authors spent twoyears in observing the life history and habits of this insect, in attempting tofind some effective control measures. The result is herewith summarized :- 1. In the vicinity of Wu-chang, the pink bollworm has three generationsa year. The first generation occupies May and July. The second...

The injurious insects of cotton of this province, however, have not hithertobeen carefully studied, especially the pink bollworm, which annually reducesthe cotton production by 10 to 30 per cent. The present authors spent twoyears in observing the life history and habits of this insect, in attempting tofind some effective control measures. The result is herewith summarized :- 1. In the vicinity of Wu-chang, the pink bollworm has three generationsa year. The first generation occupies May and July. The second one occursin mid-July and the last in late-August. Due to the lower temperature, theemergence of the first generation need about two months. 2. In day time, the adult is usually inactive, while in windless night,after seven o'clock, it becomes very active and lays eggs mostly on green bollsand calyx. about a week later, the eggs hatch and the newly-hatched larvaeare shortly getting into the bolls. After four days they often eat into theseeds. Ten days later, the lint is so stunted as to become dusky yellow incolor, thus both the yield and the quality of cotton are greatly lowered. Themature larvae appear about half a month after. 3. Field experiments have shown that three dustings of 10% DDT- sulfurpowder were very effective. In the severely damaged cotton area, the thirdspray may be simultaneously done with controlling the cotton leaf-hoppers andthe cotton leaf-rollers. 4. About 84% hibernating larvae in cotton seeds will come out when thecotton exposed in sun light and stored in the farmer's house. Hence it seemsadvisable to put cloth or other soft material covers on the cotton stored inorder to collect and kill the larvae under them. In addition, destruction of allremaining bolls on the cotton stalks, as early as possible in winter is important. 5. For controlling the bollworms in cotton store-houses, the followingresults have been obtained 50% wettable DDT diluted with 20 parts of water,91% of larvae were killed within 30 days; 6.5% 666 (benzene hexachloride)gave a mortality of 63% in four months. Wettable 6.5% 666 diluted withwater (1:100), has been proved to be the most effective ovicide which destroys99.4% of eggs while parathion (E605) also gave a very high mortality at97.7%. But 50% wettable DDT (1:100) Kills eggs at 64.2% and lead arsena-te only 16.2% respectively. 6. There were 39.1% overwintering larvae parasitized by parasitic mitesand wasps. Among them, most are the mite, Pediculoides ventricosus Newport,while the parasitic wasps Eurypterna arakawae Mats. less than 0.5%.

红铃虫在南方棉区为害棉花相当严重,除去脱落蕾铃外,僵黄花率为10—30%,我们针对这个严重问题,进行了红铃虫生活史的观察研究与防治方法试验,写出初步结果,提供防治参考。 1.红铃虫在华中武昌棉区一年有三代。第一代羽化在5至6月,7月中旬为第二代;8月下旬为第三代;第一代的蛹和幼虫所需时期均较第二、三代长。 2.成虫白天不活动,夜晚7时以后无风天气活跃最盛,产卵以在青铃上及花萼上为最多。孵化后三十多分钟即钻入棉桃内为害,4天即侵入棉籽内取食,10天棉瓤纤维呈僵黄状,半月后幼虫即可老熟(第三代的)。 3.田间防治红铃虫以10%滴滴涕硫磺粉喷三次效果显著,在后期棉虫严重地区可结合防治叶跳虫卷叶虫等同时进行。 4.籽花内的幼虫在群众家里及晒花时逃出84%,因此指导群众将籽花堆上加覆盖物,再结合帘架晒花是消减过冬红铃虫最经济有效的办法。 4.防治仓库越冬红铃虫以50%可混性滴滴涕1:30倍水溶液杀虫效果最佳。30天内死亡率达91%.6.5%可混性666(1:20)死亡率为63%。但是1:100倍的水溶液杀卵效率高到99.4%。稀释万分之一的E605为97.7%。50%可混性滴滴涕1:100杀卵率为64.2%,砒酸铃最差...

红铃虫在南方棉区为害棉花相当严重,除去脱落蕾铃外,僵黄花率为10—30%,我们针对这个严重问题,进行了红铃虫生活史的观察研究与防治方法试验,写出初步结果,提供防治参考。 1.红铃虫在华中武昌棉区一年有三代。第一代羽化在5至6月,7月中旬为第二代;8月下旬为第三代;第一代的蛹和幼虫所需时期均较第二、三代长。 2.成虫白天不活动,夜晚7时以后无风天气活跃最盛,产卵以在青铃上及花萼上为最多。孵化后三十多分钟即钻入棉桃内为害,4天即侵入棉籽内取食,10天棉瓤纤维呈僵黄状,半月后幼虫即可老熟(第三代的)。 3.田间防治红铃虫以10%滴滴涕硫磺粉喷三次效果显著,在后期棉虫严重地区可结合防治叶跳虫卷叶虫等同时进行。 4.籽花内的幼虫在群众家里及晒花时逃出84%,因此指导群众将籽花堆上加覆盖物,再结合帘架晒花是消减过冬红铃虫最经济有效的办法。 4.防治仓库越冬红铃虫以50%可混性滴滴涕1:30倍水溶液杀虫效果最佳。30天内死亡率达91%.6.5%可混性666(1:20)死亡率为63%。但是1:100倍的水溶液杀卵效率高到99.4%。稀释万分之一的E605为97.7%。50%可混性滴滴涕1:100杀卵率为64.2%,砒酸铃最差为16.2%。 6.越冬幼虫被寄生的平均有39.1%,发现天敌有二种,其中绝大多数是榖痒螨(Pediculoides ventricosus

Black rot of yam bean has been collected from the market in certain localities of Yunnan Province.The diseased tuber-root is characterized by the black dis- coloration of the interior tissues without conspicuous external symptoms.The evidence at hand indicates that the infection takes place before the digging time, through the dead main tap roots.It is unlikely that it works in the storage. Hundreds of isolations were made from the diseased tuber-roots and one fungus,a species of Pythium,predominated.The morphologic...

Black rot of yam bean has been collected from the market in certain localities of Yunnan Province.The diseased tuber-root is characterized by the black dis- coloration of the interior tissues without conspicuous external symptoms.The evidence at hand indicates that the infection takes place before the digging time, through the dead main tap roots.It is unlikely that it works in the storage. Hundreds of isolations were made from the diseased tuber-roots and one fungus,a species of Pythium,predominated.The morphologic and cultural char- acters of this causal fungus closely resemble those of Pythium spinosum,described by Sawada in 1927. Inoculations of yam bean seeds were made by sowing them in soils mixed with pure cultures of the causal fungus.It did not cause preemergence of in- fection several weeks after inoculation.Elongate black lesions were found on the basal stems.The fungus caused neither damping-off nor wilt of young seed- lings. Healthy tuber-roots of yam bean were selected and cleaned.After inserting hyphae and spores beneath the epidermis,they were laid in a moist chamber. Black discoloration of the interior tissues developed in the course of about three weeks.The discolored area enlarged but very slowly.The results of these ino- culation experiments indicate that Pythium spinosum Saw.is very weakly parasitic to yam beans. Occasionally,as might be expected,certain other species of fungi were isolated from the diseased tuber-roots.Among them were found two other species of Pythium,identified respectively as P.irregulare Buisman and P.intermedium de Bary.However,inoculations of tuber-roots of yam bean with these fungi failed to produce the characteristic symptoms. Besides from yam beans,a species of Pythium was isolated from the roots of broad bean(Vicia fabae L.).Despite certain minor morphologic differences,it has been identified as P.spinosum Sawada.However,no cross inoculation ex- periments have been conducted.

(1)在云南昆明的市场上,发现有内部组织变黑、但外表没有显明症状的地瓜块根。这个病害,称为地瓜黑心病。(2)地瓜黑心病的病原菌是一种折倒病菌,定名为 Pytlium spinosum Sawada.(3)这个折倒病菌,侵害地瓜的致病力很弱。它不能使地瓜的种子在未出土前枯死,幼苗折倒和蔫萎。它不能使幼株死亡,仅使块茎的内部组织变色。(4)病菌似乎在大田内经主权或茎端侵入块根,发展很慢,迄今还只在收获的块茎内发现这个病害。

This account is given to state the results of studies on an entomogenous fungus—Spicaria fumoso-rosea—which is commonly found underground, infecting the pupae of the parasitic flies, Crossocosmia tibialis Chao, that have devastated the Chinese oak silk-worms, Antheraea pernyi Guén-Méneville of the Northeastern China, especially in the Liaoning Province, during the recent years. This fungus is hitherto unrecorded in China and the percentage of parasitism in nature is from 3.4 to 20.3% and sometimes even...

This account is given to state the results of studies on an entomogenous fungus—Spicaria fumoso-rosea—which is commonly found underground, infecting the pupae of the parasitic flies, Crossocosmia tibialis Chao, that have devastated the Chinese oak silk-worms, Antheraea pernyi Guén-Méneville of the Northeastern China, especially in the Liaoning Province, during the recent years. This fungus is hitherto unrecorded in China and the percentage of parasitism in nature is from 3.4 to 20.3% and sometimes even higher. This paper implies such data as: (1) the description of this fungus with some distinguishable and indespensable morphological characters for identification, that, as for the convenience of reference and comparison, are illustrated in figures and tables attached to the text; (2) certain environmental factors requisite for the development of the fungus, such as the culture temperature (20-24 C), the soil moisture (15-55%) and the relative humidity (98-100%) which is necessary to the germination of the spores; and (3) some experiments conducted for the selecting culture media and the methods of isolation and inoculation. From the viewpoint of utilization, the present fungus appears to possess some good qualities suitable for application, namely, (1) being easily cultured on potato, sweet potato, horse or sheep manure and even humus media; (2) with high infectivity, from 10-100 % after artificial inoculation; and (3) with a rather wide scope of hosts, such as both larvae and pupae of Lucania separata (Walker), pupae of Pyrausta nubilalis Hübner (in one case, accidentally inoculated by nature in the laboratory), pupae of Carposina niponensis Walsingham, and various flies. Some rather small-scaled plot-tests of inoculating the larvae of the parasitic flies (dropping down from the silk-worm cocoons attached on the oak branches) were made, indicating that the percentage of infection being 72.98%, as spore-powder dusted on that ground surface and contaminating the larvae by their crawl; whereas only 40.24-43.98%, when powder dusted at 3 or 5 cm. deep in soil.

在辽宁省发現一种寄生于柞蚕寄生蝇蛹体上的食虫菌,鑑定为赤色穗状菌[Spicaria fumoso-rosea (Wize) Vassilijevsky],是我国首次詳細观察記载。此菌容易培养,在馬鈴薯、甘薯块上,以及馬、羊粪混和腐植土上都可以生长发育良好。致病力強,自然寄生率为3.4—20.3%;接种感染寄生率为10—100%。此菌除寄生于柞蚕寄生蝇蛹外,还可寄生于粘虫、苹果食心虫及家蝇等。本菌孢子发芽所需相对湿度为98—100%,在98%以下不能发芽;土壤绝对含水量15—55%时发生良好,尤以35%为最适宜。最适温度为20—24℃。小区接种試驗結果:在地面撒菌粉让寄蝇蛆爬行钻入,寄生率为72.98%;在土深3与5厘米处撒菌粉,寄生率为40.24%和43.98%。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关parasitic的内容
在知识搜索中查有关parasitic的内容
在数字搜索中查有关parasitic的内容
在概念知识元中查有关parasitic的内容
在学术趋势中查有关parasitic的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社