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叶毛     
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  leaf trichome
     There had significant differences of the leaf trichome density among different cucumber strains, and there had a significant correlation between the leaf trichome density and the quantity of adults and their eggs.
     不同黄瓜品种的叶毛密度差异显著,而且叶毛密度与烟粉虱成虫数量和产卵量呈显著正相关。
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  leaf hair
     Correlated analysis indicated that the host-selection of Liriomyza huidobrensis was correlated with the quantity of leaf hair on different eggplant varieties,and correlated coefficient was 0.7712(p=0.0054),but it was not correlated with the content of soluble protein and sugar in leaves.
     相关分析表明,南美斑潜蝇对茄子品种的寄主选择性与其叶毛数存在显著的相关关系,相关系数为0.7712(p=0.0054),而与叶片的蛋白质及可溶性糖含量相关关系不显著。
短句来源
     Correlative analysis showed that the host plant selectivity of L. huidobrensis was positively correlated with the quantity of leaf hair of the different varieties of cucumber and eggplant, and correlative coefficients were-0.4756(p=0.0395) and 0.7713(p=0.0054), respectively,but it was not significantly correlated with the contents of protein and soluble sugar in leaf.
     相关分析表明,南美斑潜蝇对黄瓜和茄子品种的寄主选择性与其叶毛数存在显著的相关关系,相关系数分别为-0.4755(p= 0.0395)和0.7712(p=0.0054); 而与叶片的蛋白质及可溶性总糖含量相关关系不显著。
短句来源
     Correlated analysis indicated that the host-selection of L.huidobrensis was negatively correlated with the quantity of leaf hair on different cucumber varieties,and correlated coefficient was-0.4755(P=0.0395),but not correlated with the content of soluble protein and soluble sugar in leaves.
     相关分析表明,南美斑潜蝇对不同黄瓜品种的寄主选择性与其叶毛数存在显著的负相关,相关系数r=-0.475 5(P=0.039 5<0.05),而与叶片的可溶性蛋白质及可溶性糖含量关系不显著。
短句来源
     The results showed that there were significant difference on the quantity of leaf hair,the content of protein and soluble sugar among cucumber varieties.
     测定结果表明,黄瓜不同品种间的叶毛数、可溶性蛋白质及可溶性糖含量存在显著差异。
短句来源
     The indica or japonica attribution of the rice restorer line Yihui 3551 (YR3551) was identified on the basis of the six indexes of the Chen's Index Method, i.e., glume hair, phenol reaction, length of the first to second rachis internode, glume color at heading, leaf hair and grain length/width ratio.
     运用程氏指数法 ,从稃毛、酚反应、第 1穗节与第 2穗节间的长度、抽穗时壳色、叶毛和粒形等 6项指标对宜恢 3551(YR3551)的籼粳属性进行了分析。
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  lamellar hair
     As for the distribution pattern of genetic diversity, most genetic variation (91.87%) for the first group of traits (including spike length, spike width, spikelet number and the first lower palea) was maintained within populations, while only 54.86% genetic variation exists within populations for the second group of traits (including membranaceus gluma, morphotype and lamellar hair).
     在遗传多样性分布特征上,穗部性状(包括穗长、穗宽、小穗数、第一外稃芒长)的变异主要集中在居群内(91.87%),而植株性状(包括颖膜、株型、叶毛)则表现为居群内的变异(54.86%)略高于居群间。
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  “叶毛”译为未确定词的双语例句
     pedatifidus Sm.
     和裂叶毛茛(R. pedatifidus Sm.)
短句来源
     3 QTLsfor leaf width, petiole width, petiole color and leaf wing; 4 QTLs controlling leaf pubescence, leaf shape index and number of leaf lobes; and 5 QTLs for petiole length, 6 for degree of leaf smooth.
     其中控制叶片长度、叶片数、叶缘形状、叶色的各有2个QTLs,控制叶宽、叶柄宽、叶柄颜色、叶翼等各有3个QTLs,控制叶毛、叶形系数、裂叶数的各有4个QTLs,控制叶柄长度、叶面光滑的各有5-6个QTLs。
短句来源
     Resistance to witches'-broom disease was different among different type of leaves.
     叶背有无叶毛叶毛类型的不同对丛枝病的抗性有很大差异。
短句来源
     4. The regression models about non-preference indexes of the aphid in relation to pubescence density, content of epidermis wax, thickness of epidermal cell, soluble sugar and free amino acids of cotton varieties were built.
     (4)棉蚜对不同棉花品种的选择性与蜡质含量、叶毛密度、表皮层细胞厚度、可溶性总糖含量和游离氨基酸含量密切相关。
短句来源
     The characteristics of rice progenies from indica a nd japonica crossing were studied using Cheng's Index Classification Method.
     应用程氏指数法研究了籼粳稻杂交后代穗壳色、叶毛、稃毛、穗节长、籽粒长宽比、酚反应等 6个亚种特征性状的表现。
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  leaf trichome
Role of leaf trichome density and length in Glycine max (L.) Merr.
      
Leaf trichome density and morphology influenced walking behavior.
      
Ultrastructural analysis of leaf trichome plasmodesmata reveals major differences from mesophyll plasmodesmata
      
Leaf trichome variation was studied in a population of Wigandia urens (Hydrophyllaceae) in relation to water availability, diversity of herbivorous insects, and grazing rates.
      
We also studied the effects of leaf trichome density and pollen augmentation on T.
      
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  leaf hair
Shoots and the resultant flowering plants were confirmed as somatic hybrids based on their growth habit, floral pigmentation and morphology, leaf hair structure, chromosome number and Fraction 1 protein profiles.
      
Moreover, the preference of the whitefly for leaf hair sites for egg laying explains reasonably why the hairy-heaved, jassid-resistant cotton varieties are more attractive to whitefly.
      
There was a positive correlation between leaf hair traits (height/density) and host plant acceptance.
      
Walking speed of the mites was highest on the cultivar with the lowest leaf hair density.
      
Walking activity, defined as the percentage of time spent walking, was not dependent on leaf hair density of the cultivars.
      
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In recent years,a new disease of the foxtail millet (Setaria italica (L.) Beauv.)has been reported to occur in epiphytotic scale in most of the millet growning areasof North China.On account of the brilliant red pigmentation of the infected plant,the disease is generally referred to by the farmers as the red-leaf disease.However,the symptoms on the millet plants varied with different varieties.In general,thecharacteristic symptom exhibited on the "purple-stem" varieties was the the redden-ing of the leaf blade,leaf...

In recent years,a new disease of the foxtail millet (Setaria italica (L.) Beauv.)has been reported to occur in epiphytotic scale in most of the millet growning areasof North China.On account of the brilliant red pigmentation of the infected plant,the disease is generally referred to by the farmers as the red-leaf disease.However,the symptoms on the millet plants varied with different varieties.In general,thecharacteristic symptom exhibited on the "purple-stem" varieties was the the redden-ing of the leaf blade,leaf sheath and spike,particularly the bristle,while that onthe "green-stem" varieties was the yellowing of the leaf blade.In all instances,thediscoloration was usually accompanied by shortening of internode,stunting of thewhole plant.wrinkling of leaf surface,slight waviness of leaf margin,deformationof spike and underdevelopment of root systems.Plants infected at an early stagewere severely stunted and on heads were produced. It has been demonstrated that the red-leaf disease of the foxtail millet was causedby a virus readily transmitted by at least three different species of grain-infestingaphids:corn aphid,Rhopalostiphum maidis Fitch;grain aphid,Macrosiphum granari-um Kirby;and green-bug,Toxoptera graminum Rond.Tests with non-viruliferouscorn aphid eliminated the possibility of direct aphid injury as the cause of the disease. ??The virus was not transmissible by mechanical inoculation,by seeds nor through thesoil. Studies on the mode of transmission of red-leaf virus by corn aphid indicatedthat the virus was persistent in its insect vector and could infect in succession aseries of at least 27 tested millet seedlings.The aphid was unable to acquire thevirus in a 5-minute feedling period on the virus source but was able to pick up thevirus in 10-minute period.The 8-hour acquisition feeding period was optimum forthis aphid.The testing feeding period was found to be not more than 5 minutesand a 4-hour period of confinement on the diseased plant was ample for the aphidto cause maximum infection.Attempts to transmit the virus with cotton aphid.Aphisgossypii Gloner peach aphid,Aphis persicae Sehult and soybean aphid,Aphis glycinesMats,have given negative results.The incubation period for symptoms of the red-leaf virus in foxtail millet ranged from 10 to 32 days with the model period beingbetween 14 to 20 days. Under natural conditions,certain cultivated cereals and grass weeds showed thesymptoms resembling the red-leaf disease of foxtail millet.Among them,were ZeaMays L.,Panicum miliaceum L.,Setaria lutescens (Weigel) Hubb.,S.viridis (L.)Beauv.,Digitaria sanguinalis (L.) Scop.Echinochloa crusgalli (L.) Roem.,Eragrostiscilianensis (All.) Link,E.pilosa (L.) Beauv.,Arundinella anomala Steud,Spodiopogonsibiricus (Steud.) Trin.,Bothruochloa ischaemum (L.) Keng.,Capillipedium parviflor-um (R.Br.) Stapf and Poa practensis L..Artificial inoculation with the corn aphidproved that the first six named plant species,including the two cereals,were susce-ptible to the red-leaf virus and they produced,in all cases,the typical symptoms.Tests with the rest sexen grass weeds are in progress. The results of disease control experiments by timely spraying with an insecticide,E605,under field conditions were inconsistent.Among the 349 foxtail millet varie-ties of foxtail millet examined in the experimental field,nine of them were foundto be highly torelant to and suffered only very slightly from the attack of the red-leaf virus.These varieties were,however,succeptible in aphid transmission experiments. Available evidences point to the conclusion that the red-leaf virus of the foxtail millet herin reported is quite different from all the previously described cereal viruses.Among the cereal virus that closely resembles the red-leaf virus is the yellow-dwarfvirus reported by Oswald tnd Hauston.These two viruses are similar in the follow-ing respects:both are transmissible by the same species of aphids (Rhopalosiphummaidis,Microsiphum graminium andToxoptera granarium) and neither virus can betransferred mechanically.But they differ strikingly from each other in their hostranges.According to Oswald and Hauston,there were 19 of 55 grasses tested thatappeared to be immune from the yellow-dwarf virus.Digitaria sanguinalis,Echino-chloa crus-galli Setaria viridis and Zea Mays were among the immune hosts.On thecontary,all these four gramineous plants were found to be extremely susceptible tothe red-leaf virus both under natural condition and in artificial inoculation experi-ments.Accordingly,the red-leaf,a persistent aphid borne virus affecting the foxtailmillet,is herein reported as a new virus of the cereals.

小米红叶病是在我国华北分布普遍和为害严重的一种小米病害。病害的症状,在紫杆的小米品种上面,主要的是叶片、叶鞘和穗变紅;在青杆品种上面是叶片黄化。無論如何,紫杆和青杆品种病株除变色外,都可随伴各种畸形,包括植株矮化、叶面绉折、叶綠波状、穗变形和根系發育不良。紅叶病是一个借蚜虫傳播的病毒病害衩籽痢⒙蟪す苎梁吐蠖硌辆軅鞑ゲ『?其中以玉米蚜为最重要。曾經测定玉米蚜在病株上面吸食获得病毒和在健株上面吸食所需最短的时間;带毒玉米蚜的数目和傳病效能的关系谐嵫梁腿舫婢軅鞑 S锰已痢⒋蠖寡梁兔扪羵鞑∥椿竦谜慕Y果。紫杆品种感病后,仅表皮細胞、叶毛細胞和泡状細胞变成紅化,其下层的組織不紅化。叶綠素逐漸消失,但消失过程相当的慢。在病害最末期,維管束內的靱皮細胞少数的坏死,导水管內可能充塞有棕色胶質物,其它細胞無显著的变化。檢查病叶未發現有細胞內含体。用带毒蚜虫作人工接种,証知小米紅叶病病毒能侵染玉米和黍。这两种作物在自然环境下均發生紅叶病。在自然环境下,有以下的禾谷类杂草紅化:金狗尾、青狗尾、馬唐、大画眉草、画眉草、稗、野牯草、大油芒、白羊草、細柄草和六月禾。用玉米蚜作人工接种証明稗、青狗尾、金狗尾、馬唐、...

小米红叶病是在我国华北分布普遍和为害严重的一种小米病害。病害的症状,在紫杆的小米品种上面,主要的是叶片、叶鞘和穗变紅;在青杆品种上面是叶片黄化。無論如何,紫杆和青杆品种病株除变色外,都可随伴各种畸形,包括植株矮化、叶面绉折、叶綠波状、穗变形和根系發育不良。紅叶病是一个借蚜虫傳播的病毒病害衩籽痢⒙蟪す苎梁吐蠖硌辆軅鞑ゲ『?其中以玉米蚜为最重要。曾經测定玉米蚜在病株上面吸食获得病毒和在健株上面吸食所需最短的时間;带毒玉米蚜的数目和傳病效能的关系谐嵫梁腿舫婢軅鞑 S锰已痢⒋蠖寡梁兔扪羵鞑∥椿竦谜慕Y果。紫杆品种感病后,仅表皮細胞、叶毛細胞和泡状細胞变成紅化,其下层的組織不紅化。叶綠素逐漸消失,但消失过程相当的慢。在病害最末期,維管束內的靱皮細胞少数的坏死,导水管內可能充塞有棕色胶質物,其它細胞無显著的变化。檢查病叶未發現有細胞內含体。用带毒蚜虫作人工接种,証知小米紅叶病病毒能侵染玉米和黍。这两种作物在自然环境下均發生紅叶病。在自然环境下,有以下的禾谷类杂草紅化:金狗尾、青狗尾、馬唐、大画眉草、画眉草、稗、野牯草、大油芒、白羊草、細柄草和六月禾。用玉米蚜作人工接种証明稗、青狗尾、金狗尾、馬唐、六月禾和大油芒均感染小米紅叶病病毒。其它紅化杂草和接种試驗,正在进行中。紅叶病病毒对小米植株所产生的影响,因植株發育的阶段不同而輕重有所差异,植株感病愈早病害愈剧烈。用杀虫剂E605在田間噴射小米防治紅叶病,未能表現药剂有防病的效能,在田間观察349个品种,选得9个高度耐病和农艺性状优良的品种。抗病选种可能是当前防治小米紅叶病最有效的防治措施。根据病原的傳染方法,寄主范围和所表現的症状,小米紅叶病病毒和以往所报道的禾本科植物的病毒病害的病毒均不相同,因此它是禾谷类作物的一个新的病毒。

The leaf pieces of Populus tomentosa Carr。var. truncata were cultured on F medium containing various hormons. The results obtained showed that after 24 days of culture small green buds cold be induced from the leaf pieces on F medium with 1.5 mg/l 6-BA and 0.1 mg/lα-NAA. After one month, when transfered to same medium or to F medium with 0.5 mg/l 6-BAand 0.1 mg/l α-NAA, the cultures of leaf explants with small buds differentiated continuously lots of new buds and formed small shoots without roots. When the small...

The leaf pieces of Populus tomentosa Carr。var. truncata were cultured on F medium containing various hormons. The results obtained showed that after 24 days of culture small green buds cold be induced from the leaf pieces on F medium with 1.5 mg/l 6-BA and 0.1 mg/lα-NAA. After one month, when transfered to same medium or to F medium with 0.5 mg/l 6-BAand 0.1 mg/l α-NAA, the cultures of leaf explants with small buds differentiated continuously lots of new buds and formed small shoots without roots. When the small shoots without roots were transfered on F medium with 0,01 mg/l 6-BA and 0.1 mg/l α-NAA, after 7 days of culture they were induced to produce roots and formed whole plantlets. In this paper the effects of conbination of various concentrations of cytokinin(6-BA,KT) and auxin (α-NAA,IAA) on differentiation of buds and roots, and regeneration of whole plantlets were also discussed.

本文对截叶毛白杨叶肉组织用离体培养法获得完整植株的培养条件进行了研究。结果表明:叶肉组织切块在含有1.5毫克/升6-BA和0.1毫克/升α-NAA的F琼脂培养基上培养24天后,可分化出绿色小芽。一个月后,将培养物转移到新鲜的原培养基中,或含有0.5毫克/升6-BA与0.1毫克/升a-NAA的F培养基中培养,促进了小苗的继续分化。将无根小苗移入含0.1毫克/升6-BA和0.1毫克/升α-NAA的F培养基中培养7天左右就可以诱导出根,形成整个植株。本文就不同种类的不同浓度的细胞分裂素(6-BA,KT)和生长素(α-NAA,IAA)单独,或相应配合对叶片切块分化芽的作用,以及根的诱导进行了比较。

Three volatile oils extracted from lindera glauca (Sieb.et Zucc.) B1.,Asarum himalaicuam Hook F.et Thoms. and Thymus mongolicus Ronnonger showed definite analgesic activities by hot plate test and prolonged the sleeping time induced by pentobarbital sodium in mice. They all relaxed smooth muscle and antagonised the Ache-induced contraction of isolated intestine of rabbit, and showed antihistaminic action on guinea pigs trachea muscles in vitro. Furthermore, the volatile oils of fructus piperis leanes also showed...

Three volatile oils extracted from lindera glauca (Sieb.et Zucc.) B1.,Asarum himalaicuam Hook F.et Thoms. and Thymus mongolicus Ronnonger showed definite analgesic activities by hot plate test and prolonged the sleeping time induced by pentobarbital sodium in mice. They all relaxed smooth muscle and antagonised the Ache-induced contraction of isolated intestine of rabbit, and showed antihistaminic action on guinea pigs trachea muscles in vitro. Furthermore, the volatile oils of fructus piperis leanes also showed antiasthmatic effect in vivo.

本文实验证明了山胡椒叶、毛细辛、野百里香3种中草药挥发油,均有一定的镇痛作用;与戊巴比妥钠伍用,可出现协同的中枢抑制效应;对离体兔肠平滑肌有松弛作用,并能拮抗乙酰胆碱引起的肠平滑肌收缩;对组胺引起的离体豚鼠气管平滑肌痉挛,有缓解作用。山胡椒叶挥发油在整体豚鼠实验时,表现有显著的平喘作用。这3种挥发油均不能拮抗戊四唑引起的惊厥。

 
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