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木质部运输
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  “木质部运输”译为未确定词的双语例句
     The results showed that PP333 transported through xylem and accumulated in phloem, then distributed to leaves, in leaves on long shoots increased from base to tip of the shoot and in leaves on mid--long shoots decreased in the same manner, and there was more amount in netted roots than in absorbing roots.
     结果表明,PP333由木质部运输,在韧皮部积累,并向叶片扩散,以短梢中含量最高,长梢叶片中由基向上含量渐多,而中梢叶由基向上渐少,网状吸收根含量少于豆芽状延伸根。
短句来源
     In major plant species, boron is delivered to growing regions generally via the xylem translocation pathway, however, phloem may play an considerable role in boron translocation to meet the demands of developing sink regions that do not readily transport, especially, under boron deficiency condition.
     大多数植物中 ,硼主要通过木质部运输 ,但不排除在蒸腾作用较弱的部位 ,特别是缺硼胁迫时 ,韧皮部对硼运输起一定作用。
短句来源
  相似匹配句对
     All transport of dye in the xylem was acroptetal.
     在木质部中染料的运输是向顶的。
短句来源
     ASSIMILATE TRANSPORTATION IN THE PHLOEM AS RELATED TO THE XYLEM
     韧皮部同化物运输木质部的关系研究
短句来源
     TRANSPORT SIMULATION TEST
     运输模拟试验
短句来源
     O.C.P Transport
     什么是O.C.P运输?
短句来源
     A Review of the Study on the Developmental Biology of Xylem
     植物木质部发育生物学研究
短句来源
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  transport in xylem
Mineral uptake and transport in xylem and phloem of the proteaceous tree, Banksia prionotes
      


The volume flow of exudation was promoted by 1×10~(-6)M ABA and so werethe flux of K~+, Cl~-, NO_3~- and H_2PO_4~- and the concentrations of these ions in theexudate of excised bean root which had been pre-treated with de-ionized water or10 mM KCl solution. Two hours after the exudation experiment, transport of~(86)Rb~+ and K~+ was faster than that of the control, but the concentration of ~(86)Rb~+and K~+ in the exudate was lower than that of the control.The rate of K~+ transport as affected by ABA differed...

The volume flow of exudation was promoted by 1×10~(-6)M ABA and so werethe flux of K~+, Cl~-, NO_3~- and H_2PO_4~- and the concentrations of these ions in theexudate of excised bean root which had been pre-treated with de-ionized water or10 mM KCl solution. Two hours after the exudation experiment, transport of~(86)Rb~+ and K~+ was faster than that of the control, but the concentration of ~(86)Rb~+and K~+ in the exudate was lower than that of the control.The rate of K~+ transport as affected by ABA differed in bean roots with different K~+ contents. In the bean root low in K~+, ABA regulation was more effec-tive and the peak value of K~+ transport rate appeared later in the course of exuda-tion.Although ABA promoted volume flow and ion transport in exudation, it didnot affect K~+ uptake in the root system. The response of the bean root to ABAtreatment was very rapid. Within 20 minutes the rates of volume flow and ~(86)Rb~+flux of the ABA-treated excised bean root were 3.5 and 1.4 times respectively, ofthe control.Contrary to the effect of ABA, 6-BA depressed volume flow and ion transportin exudation of the bean root system. When 6-BA was applied together with ABAto the root system, it abolished the promotive effect of ABA on exudation.When ABA solution was smeared on the surface of the primary and the firsttrifoliate leaves, ABA was transported from the leaves to the root system. Increa-sed endogenous ABA in the root system promoted flux of K~+ and Cl~- into xylemjust as exogenous ABA applied in the external solution. This indicated that exuda-tion of the root system could be regulated by the chemical information in the formof ABA from the shoot.Hot air treatment on the shoot of the bean plant decreased the ABA contentof the root system to about 60~70 percent of the original amount. At the sametime, volume flow of exudation and K~+ flux into xylem were lowered.

1×10~(-6)MABA促进经去离子水或10 mM KCl溶液预处理启再置于去离子水中的菜豆根的溢泌量,促进K~+、Cl~-、NO~3~-、H_2PO_4~-向木质部的运输速率和这些离子在溢泌液中的浓度。但对根系的K~+离子吸收无促进作用,也无抑制作用。 ABA处理的菜豆根20分钟之内,~(86)Rb~+的运输速率为对照的1.4倍,溢泌速率为对照的3.5倍。6-BA抑制溢泌速率和离子向木质部的运输速率,6-BA降低ABA的促进作用。 菜豆叶片上涂布的ABA(90μg/株)可以运向根部,使根部的ABA含量增加到对照的3.6倍。菜豆植株的地上部经干热风处理后,根内的ABA含量减少到对照的大约1/3,根的溢泌速率和K~+的运输速率也随之减少。

H--PP333 was used to' trace distribution of soil--applied PP333 in young apple trees (cv. Liaofu). The results showed that PP333 transported through xylem and accumulated in phloem, then distributed to leaves, in leaves on long shoots increased from base to tip of the shoot and in leaves on mid--long shoots decreased in the same manner, and there was more amount in netted roots than in absorbing roots. PP333 brought into play about one month after soil application and one week after foliage spray. The inhibition...

H--PP333 was used to' trace distribution of soil--applied PP333 in young apple trees (cv. Liaofu). The results showed that PP333 transported through xylem and accumulated in phloem, then distributed to leaves, in leaves on long shoots increased from base to tip of the shoot and in leaves on mid--long shoots decreased in the same manner, and there was more amount in netted roots than in absorbing roots. PP333 brought into play about one month after soil application and one week after foliage spray. The inhibition effect of excessive PP333 on apple trees was relieved by spraying 100--300 ppm GA3 2 weeks after blooming.GA3 increased shoot growth and leaf area, promoted protein synthesis, lowered stomatal resistance and strengthened transpiration. The treatment brought into change of contents of mineral elements in leaves but did not harm fruit quality. Considering the comprehensive effect, it was better to give GA3 at 200 ppm by foliage spray.

利用3H-PP333示踪法研究了土施PP333在辽伏苹果幼树体内的分配规律。结果表明,PP333由木质部运输,在韧皮部积累,并向叶片扩散,以短梢中含量最高,长梢叶片中由基向上含量渐多,而中梢叶由基向上渐少,网状吸收根含量少于豆芽状延伸根。上施PP333发挥抑制作用,自施入时起约需1个月,而喷施仅需1周,两者结合抑制效应最佳。当PP333施用过量时,于花后2周喷施100~300PPmGA3,可有效地解除PP333的抑制作用,新梢生长量和叶面积增大,蛋白质合成增强,气孔阻力变小,蒸腾强度变大,微量元素的叶含量发生变化,对果实品质无不良影响。经综合性状比较,以200PPmGA。喷施效果较佳。

Iron transported along xylem near cambium when iron fertilizer was inserted into roots of apple tree.The speed of transportation reached to 38.48 cm/h.The distribution of iron in roots was little.When iron was intensively injected into trunk,iron transported along central xylem and speed reached to 450 cm/h,most of iron transported in roots.Generally,it was difficult tobe absorbed by root when iron was drenched into soil.

铁的红色螯合物邻啡罗啉铁对苹果插根试验表明:铁肥插根处理,铁沿着靠近形成层的木质部向地上部分运输,速度可达38.48cm/h,根系分布较少;强力高压注射铁主要沿中央木质部运输,首先充分向下运往根系,向上运输较向下运输少,运输速度可达450cm/h。环状沟土壤浸施铁在不断根的情况下很难被根吸收,断根吸收、运输铁的机制与插根相同。

 
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