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   leaf color 在 植物保护 分类中 的翻译结果: 查询用时:0.062秒
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leaf color    
相关语句
  叶色
    The growth of stems and leaves was inhibited, but leaf color was more green and root fresh weight and root length were significantly increased by 0.01 mg/L paclobutrazol treatment.
    结果表明,0.1~1mg/L多效唑处理完全抑制了MS扩繁培养基中马铃薯试管苗的生长,而0.01mg/L多效唑处理虽抑制了试管苗茎叶的生长,但叶色加深、根重和根长显著增加.
短句来源
    Effects of host volatiles, leaf color, and cuticular trichomes on host selection by Liriomyza sativae Blanchard
    寄主挥发物、叶色和表皮毛在美洲斑潜蝇寄主选择中的作用
短句来源
    5.Once Burdock root-knot nematode occurred, the plant height, stem diameter and leaf area per plant were decreased dramatically. It also showed the symptoms like light leaf color, rotten roots, verruca rhizome and bad quality. The yield would reduce by 30%~50%.
    5.牛蒡发生线虫病后,植株株高、茎粗及叶面积显著降低,叶色变淡,严重者根系腐烂,根茎表皮疣裂,产量品质降低,一般致使产量降低30%~50%。
短句来源
    4. The behavior reaction to different cucumber volatiles, the density of leaf trichomes, and the effect of leaf color on the pest population were also investigated in this thesis.
    4.用Y臂嗅觉仪研究了烟粉虱对黄瓜植株气体挥发物的行为反应,在解剖镜下测定了叶毛密度,并进行了叶色比较。
短句来源
    Biosynthesis of chlorophyll is a very complicated process. Chlorophyll metabolism is influenced when certain location of plant genome occur aberrance, which lead to change of leaf color.
    叶绿素的生物合成是一个相当复杂的过程,当植物基因组的某些位点发生变异会影响叶绿素的代谢,从而导致植物的叶色发生改变。
短句来源
更多       
  叶色
    The growth of stems and leaves was inhibited, but leaf color was more green and root fresh weight and root length were significantly increased by 0.01 mg/L paclobutrazol treatment.
    结果表明,0.1~1mg/L多效唑处理完全抑制了MS扩繁培养基中马铃薯试管苗的生长,而0.01mg/L多效唑处理虽抑制了试管苗茎叶的生长,但叶色加深、根重和根长显著增加.
短句来源
    Effects of host volatiles, leaf color, and cuticular trichomes on host selection by Liriomyza sativae Blanchard
    寄主挥发物、叶色和表皮毛在美洲斑潜蝇寄主选择中的作用
短句来源
    5.Once Burdock root-knot nematode occurred, the plant height, stem diameter and leaf area per plant were decreased dramatically. It also showed the symptoms like light leaf color, rotten roots, verruca rhizome and bad quality. The yield would reduce by 30%~50%.
    5.牛蒡发生线虫病后,植株株高、茎粗及叶面积显著降低,叶色变淡,严重者根系腐烂,根茎表皮疣裂,产量品质降低,一般致使产量降低30%~50%。
短句来源
    4. The behavior reaction to different cucumber volatiles, the density of leaf trichomes, and the effect of leaf color on the pest population were also investigated in this thesis.
    4.用Y臂嗅觉仪研究了烟粉虱对黄瓜植株气体挥发物的行为反应,在解剖镜下测定了叶毛密度,并进行了叶色比较。
短句来源
    Biosynthesis of chlorophyll is a very complicated process. Chlorophyll metabolism is influenced when certain location of plant genome occur aberrance, which lead to change of leaf color.
    叶绿素的生物合成是一个相当复杂的过程,当植物基因组的某些位点发生变异会影响叶绿素的代谢,从而导致植物的叶色发生改变。
短句来源
更多       
  叶色
    The growth of stems and leaves was inhibited, but leaf color was more green and root fresh weight and root length were significantly increased by 0.01 mg/L paclobutrazol treatment.
    结果表明,0.1~1mg/L多效唑处理完全抑制了MS扩繁培养基中马铃薯试管苗的生长,而0.01mg/L多效唑处理虽抑制了试管苗茎叶的生长,但叶色加深、根重和根长显著增加.
短句来源
    Effects of host volatiles, leaf color, and cuticular trichomes on host selection by Liriomyza sativae Blanchard
    寄主挥发物、叶色和表皮毛在美洲斑潜蝇寄主选择中的作用
短句来源
    5.Once Burdock root-knot nematode occurred, the plant height, stem diameter and leaf area per plant were decreased dramatically. It also showed the symptoms like light leaf color, rotten roots, verruca rhizome and bad quality. The yield would reduce by 30%~50%.
    5.牛蒡发生线虫病后,植株株高、茎粗及叶面积显著降低,叶色变淡,严重者根系腐烂,根茎表皮疣裂,产量品质降低,一般致使产量降低30%~50%。
短句来源
    4. The behavior reaction to different cucumber volatiles, the density of leaf trichomes, and the effect of leaf color on the pest population were also investigated in this thesis.
    4.用Y臂嗅觉仪研究了烟粉虱对黄瓜植株气体挥发物的行为反应,在解剖镜下测定了叶毛密度,并进行了叶色比较。
短句来源
    Biosynthesis of chlorophyll is a very complicated process. Chlorophyll metabolism is influenced when certain location of plant genome occur aberrance, which lead to change of leaf color.
    叶绿素的生物合成是一个相当复杂的过程,当植物基因组的某些位点发生变异会影响叶绿素的代谢,从而导致植物的叶色发生改变。
短句来源
更多       
  叶片颜色
    This paper showed the effect of PP333 on Poaannua treated by different concentration 15%(0.33mg.L -1 and 0.67mg.L -1 )These results demonstrated that PP333 can deepen the leaf color, and make it dark green.
    用 0 .33mg·L-1和 0 .6 7mg·L-1的 15 %PP333处理盆栽冷地早熟禾 ,评价PP333对冷地早熟禾生长的影响。 测定结果表明 :PP333可以不同程度地加深叶片颜色 ,使叶片为深绿色和墨绿色。
短句来源
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  leaf color
Leaf color, leaf N, and N concentration of one-year-old wood and roots were similarly increased relative to control by both soil and foliar N application.
      
Leaf color (as SPAD readings) and N concentrations (mg/g), and soil NH4+-N and NO3--N were measured periodically throughout the two seasons.
      
Leaf color was scored on a scale of 1 to 5, in which 1 was dark green and 5 was bright yellow.
      
The group is defined by fruit flavor, mature leaf color, number of tertiary divergent veins, and pubescent bracts in the inflorescence.
      
Only the diversity indices for leaf color of seedlings, starch composition and 1000-grain weight showed significant differences among regions.
      
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The leaf color is a reliable indicator of the physiological state of the rice plant.Plantswith different leaf color differ in their susceptibility to various diseases,and one of the mosteffective means to control the leaf color is varying the level of nitrogen fertilizers.Rice plantsgiven higher level of nitrogen in the form of ammonium sulphate are usually darker in leafcolor and more susceptible to the bacterial leaf blight (Xanthomonas oryzae).The composi-tion of the leaf varies...

The leaf color is a reliable indicator of the physiological state of the rice plant.Plantswith different leaf color differ in their susceptibility to various diseases,and one of the mosteffective means to control the leaf color is varying the level of nitrogen fertilizers.Rice plantsgiven higher level of nitrogen in the form of ammonium sulphate are usually darker in leafcolor and more susceptible to the bacterial leaf blight (Xanthomonas oryzae).The composi-tion of the leaf varies with the leaf colour.The contents of free amino acids and amidessuch as aspartic acid,glutamic acid,asparagine and etc.are higher in plants with darkerleaf color.Conversely,the amount of sugars and polyphenols is less than those with lightleaf color.It seems that the proneness of rice plants to the bacterial leaf blight varies withcomposition of the leaf.The disease is probably favoured by higher level of free amino acidsand lower level of polyphenols in the leaves.

水稻黄黑状态对白叶枯病的反应显著不同,由于施用氮肥[(NH_4)_2SO_4]多而表现黑的稻株,较少肥而表现黄的稻株易于感病。植物成分的分析,证明黑的状态的稻株叶片中游离氨基酸的含量高,尤其是以门冬氨酸、谷氨酸、丝氨酸和门冬酰胺的差异最明显,但是糖和多元酚的含量则较低。糖的含量高低主要决定于还原糖的多少。稻株中多元酚的含量随着发育阶段而不同,苗期低,中期高,后期又减少。在生长后期,植株上部叶片中多元酚的含量高于老的叶片。试验结果初步指出稻株中游离氨基酸的量高和多元酚的量低,与稻株的易于感病有一定的关系,但是抗病机制的分析还须要对病菌和水稻的生理进行深入的研究。

Since 1957,several field tests were conducted in successive years in WesternInner Mongolia to analyse the mechanism of resistance of spring wheat varietiesto the wheat stem maggot,Meromyza saltatrix Linnaeus.The flies prefer wheat fields with less shading and lay eggs singly chiefly onthe lower part of the upper surface of wheat leaves.In general,varieties receivingmore eggs developed higher percentages of injured stems.Repeated field survey sho-wed that the amount of oviposition-varies obviously with wheat...

Since 1957,several field tests were conducted in successive years in WesternInner Mongolia to analyse the mechanism of resistance of spring wheat varietiesto the wheat stem maggot,Meromyza saltatrix Linnaeus.The flies prefer wheat fields with less shading and lay eggs singly chiefly onthe lower part of the upper surface of wheat leaves.In general,varieties receivingmore eggs developed higher percentages of injured stems.Repeated field survey sho-wed that the amount of oviposition-varies obviously with wheat varieties,indi-cating that nonpreference is the chief cause of varietal resistance.Analysis ofaccumulated data verified that the density of eggs is related with the length ofgrowing period,leaf pubescence,width of leaf,the angle between leaf and stemduring ovipositional period and probably the leaf color.The earlier the appea-rance of heading stage,the higher the density and length of leaf hairs,the nar-rower the leaves or the wider the angle between leaf and stem,the lesser thenumber of eggs laid.Statistical analyses proved that all such differences aresignificant.Besides,a single year field survey of 56 varieties indicated that the darker theleaf color the lesser the amount of oviposition,and a negative correlation wasrecorded.However,this needs to be verified by further observations.In addition,analysis of the ratio between the percentage of injured stems andthat of oviposited tillers of various varieties in different growth stages duringoviposition period showed that the growth stage also affecting the percentage oflarval survival.According to observations on labelled oviposited stems of the sa-me variety but in different growth stages during oviposition period,bearing oneegg each,it has been recorded a positive correlation between the growth stageand larval mortality.Thereforc,the growth stage of wheat varieties during ovi-position period is proven to exhibit also some antibiotic action.

本文系1957—1979年间,根据多次田间调查春小麦品种对麦秆蝇抗性机制研究的结果。麦秆蝇有趋向遮荫较差麦田的习性,卵散产,主要产在叶片正面近基部处。研究结果表明,春小麦品种对麦秆蝇的抗性,主要是由此虫产卵对不同品种的选择性决定的。影响产卵选择性的特性已证明有生育期、叶面茸毛性、叶片宽度及叶片与茎秆间交角。抽穗愈早、叶面茸毛密而长、叶片狭或叶片与茎秆间交角大,则着卵较少。统计分析这些差异都是显著的。此外,有一年的田间调查表明叶色深的品种着卵较少,叶色深浅与着卵量有显著的负相关。但这需要进一步验证。还有,品种生育期的长短与幼虫入茎成活率,已证明有显著的正相关,因此品种生育期也起一定的抗生作用。

Studies on relationship between ecological factors and the incidence of rice leafroller, Cnaphalorocis medinalis, were carried out in Henan Province in 1983-1986. The results indicated that the adult population in fields was affected primarily by immigration intensity of adults and plant density; number of eggs affected by adult population and leaf color; and larva number by amount of eggs and natural enemy. A series of equations were established, and they might be used as submodel in a systematic model...

Studies on relationship between ecological factors and the incidence of rice leafroller, Cnaphalorocis medinalis, were carried out in Henan Province in 1983-1986. The results indicated that the adult population in fields was affected primarily by immigration intensity of adults and plant density; number of eggs affected by adult population and leaf color; and larva number by amount of eggs and natural enemy. A series of equations were established, and they might be used as submodel in a systematic model to forecast the incidence of this pest.

本文研究了稻纵卷叶螟发生量与生态因素间的数量关系。明确了影响田间成虫数量的主导因素是成虫迁入强度和植株密度;影响卵量的主导因素是成虫数量和叶色;影响幼虫数量的主导因素是卵量和天敌。分别组建了回归方程,这些方程可作为亚模型纳入到稻纵卷叶螟系统模型中进行数量预报,改变过去预报防治“一刀切”的现象。在电子计算机上检验河南各地材料,吻合度为20/25。

 
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