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wheat
相关语句
  小麦
    QTL Mapping for Yield Traits Using Molecular Markers in Wheat
    小麦产量性状QTL的分子标记定位
短句来源
    Improvement of Wheat (Triticum Aestivum) by Genetic Engineering
    小麦(Triticum aestivum)基因工程研究
短句来源
    Molecular Cloning, Classification and Development of Molecular Markers of Wheat LMW-GS Genes
    小麦LMW-GS基因克隆、类群划分及其特异分子标记开发研究
短句来源
    On the Identity of the Wheat Midge in China,Sitodiplosis Mosellana(Géhin),with Remarks on its Life History(Diptera,Cecidomyidae)
    小麦吸浆虫Sitodiplosis mosellana(Géhin)的鉴别同生活习性述要(双翅目、瘿蝇科)
短句来源
    A PHYSIOLOGICAL ANALYSIS OF WHEAT YIELD
    小麦产量的生理分析
短句来源
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  普通小麦
    The Cytological Observation and Comparison Between the pollen Development in T-and V-Type of Wheat (Triticum aestivum)
    普通小麦(Triticum aestivum L)“提型”和“潍型”雄性不育系小孢子发生的细胞形态学观察比较
短句来源
    Chromosome Giemsa N-banding and the Origin of the B Genome in Common Wheat
    普通小麦染色体Giemsa N-带及其B组染色体来源
短句来源
    The Genetic Effect of Deficiency of PA Gene in Common Wheat
    普通小麦Ph基因缺失的遗传效应
短句来源
    Cytogenetical Study on Pollen Plants from F_1 Hybrid Between Hexaploid Triticale and Common Wheat
    六倍体小黑麦与普通小麦杂种F_1花粉植株的细胞遗传学研究
短句来源
    Meiotic Studies on Pollen Plants of F1 between Octoploid Triticum-Agropyron and Common Wheat
    八倍体小偃麦与普通小麦杂种F_1花粉单倍体减数分裂研究
短句来源
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  “wheat”译为未确定词的双语例句
    ISOLATION AND TRANSLATION IN VITRO OF GLIADIN mRNA OF WHEAT
    小麦醇溶蛋白mRNA的分离及体外翻译
短句来源
    THE RULES AND WAYS OF TRANSMISSION OF ~(14)C-PHOXIM RESIDUES IN THE POTTING SOIL BY SPRING WHEAT
    春小麦对土壤中~(14)C-辛硫磷残留物的转移规律和途径的研究
短句来源
    WHEAT GERM DNA-DEPENDENT RNA POLYMERASE II CANNOT TRANSCRIBE VELVET TOBACCO MOTTLE VIRUS ( VTMoV ) AND ITS VIRUSOID
    小麦芽依赖于DNA的RNA聚合酶Ⅱ不能转录绒毛烟斑驳病毒及其拟病毒
短句来源
    THE EFFECT OF LYCORINE ON PEROXIDASE AND THE CONTENT OF ABA IN WHEAT COLEOPTILE
    石蒜碱对胚芽鞘切段过氧化物酶活性和ABA含量的效应
短句来源
    Preliminary Report on Interspecies Competition Among Wheat Aphids.
    麦蚜种间竞争研究初报
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  wheat
Etiolated wheat coleptiles were inhibited 100 and 40%, respectively, at 10-3 and 10-4 M.
      
The results showed that there were significantly positive linear relationships between the inhibitory rates of wheat seed germination and root elongation and the CODcr of the mother liquor scraps.
      
The toxicity of MSG wastewater to the test crops was in the order of tomato >amp;gt; Chinese cabbage >amp;gt; wheat, indicating that tomato was the most sensitive to the wastewater, and could be considered as an ideal toxic bioindicator.
      
The initial stage of amino acid metabolism was intensified in germinating wheat seeds with exogenous glutamine and proline.
      
The strain formed extracellular phenol oxidases during surface growth on a liquid medium in the presence of guayacol and copper sulfate, as well as during submerged cultivation in liquid medium containing wheat bran and sugar beet pulp.
      
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Nearly one-third of the life history of winter wheat is spent in the winter. Therefore, the condition under which the plants pass over their “over-wintering” stage has a great deal to do with the yield next year. Important as the “over-wintering” stage is, little is known about the physiology of the plant during that period.The present paper summarizes our four-year work on the physiology of wheat root during the winter season. It was found that during the winter season, while the above-ground part...

Nearly one-third of the life history of winter wheat is spent in the winter. Therefore, the condition under which the plants pass over their “over-wintering” stage has a great deal to do with the yield next year. Important as the “over-wintering” stage is, little is known about the physiology of the plant during that period.The present paper summarizes our four-year work on the physiology of wheat root during the winter season. It was found that during the winter season, while the above-ground part of the plant nearly died down, the root kept on growing at a considerable rate. From December to February, its length increased by two feet. During the winter, the root maintained rather a high rate of respiration and its enzymatic activities, including activities of catalase, diastase and phosphorylase, were measurable. When supplied with P32-labelled phosphate solution in various ways, the root showed ability not only to absorb the phosphate ions, but also to transport them to the above-ground organs. The radioactivity, instead of distributing uniformly throughout the different organs, maintained some physiological gradient, indicating that the P32 did not enter the plant by mechanical force, but was physiologically absorbed.The techniques concerning the application of radioactive tracers under field conditions were also summarized and discussed.

1.在越冬期间小麦的根系并不停止生长。根据1958—1959年的观察,从12月初至2月初这610余天中,根系生长了2尺以上。 2.越冬期间的根系能够将施入土壤中的(NH_4)_2SO_4转化为氨基酸。 3.根系在越冬期间具有相当显著的呼吸活动,其过氧化氢酶、转化酶和磷酸化酶都是可以测出的。 4.当向介质中施入含有P~(32)的磷酸盐溶液时,在12小时内(没有在更短的时间取样)P~(32)遍及于植株全体,P~(32)在各器官中的分布表现出明显的生理陡度,说明P~(32)的进入植物体确系由于生理吸收,而非机械吸收。 5.对于在田间条件下应用同位素研究越冬期间根系的生理活动进行了总结和讨论。

It was discovered by Mehler in 1951 that in the presence of excess catalase and ethanol, oxygen is consumed by the chloroplast preparation upon illumination and a stoichiometrical amount of CH_3CHO is formed at the same time. This reaction is generally referred as"the Mehler reaction" and is a variation of the Hill reaction with molecular oxygen as oxidant. Recent investigations have shown that in the Vit. K or FMN-mediated photophosphorylation, ATP formation is accompanied by ~(18)O exchange. Hence, an intimate...

It was discovered by Mehler in 1951 that in the presence of excess catalase and ethanol, oxygen is consumed by the chloroplast preparation upon illumination and a stoichiometrical amount of CH_3CHO is formed at the same time. This reaction is generally referred as"the Mehler reaction" and is a variation of the Hill reaction with molecular oxygen as oxidant. Recent investigations have shown that in the Vit. K or FMN-mediated photophosphorylation, ATP formation is accompanied by ~(18)O exchange. Hence, an intimate connection may exist between these two separately discovered reactions of isolated chloroplasts.In the present paper the activities of the Mehler reaction and photophosphorylation of isolated wheat-seedling chloroplasts were simultaneously determined. The principal results were as follows:(1) Among the catalytic cofactors of photophosphorylation, Vit. K and FMN do, whereas PMS does not, enhance the Mehler reaction(Table 1).(2) A parallelism is found between the rates of ATP and CH_3CHO formation in the presence of Vit. K or FMN and also in the absence of added cofactor. The P/O value thus obtained is twice that of simultaneously determined K_3Fe(CN)_6 system and amounts to 2 when the coupling is complete(Table 2, 3).(3) The effects of pH, NH_4~+ and aging of chloroplasts on the Vit. K and on K_3Fe(CN)_6 systems are similar with respect to electron transport and phosphorylation(Fig. 1).(4) Under aerobic condition the P/O value remains practically unchanged upon varying the concentration of the cofactor(Fig. 2).The results of the present investigation showed that the same processes are involved in the Mehler reaction and photophosphorylation mediated by Vit. K or FMN. That the Vit. K or FMN mediated photophosphorylation is actually non-cyclic (?)n nature is conclusively proved. These cofactors are in fact"Hill oxidants" reversibly oxidized by molecular oxygen. Their possible physiological role in the photosynthetic process was briefly discussed.

我們同时測定了小麦离体叶綠体的Mehler反应与光合磷酸化作用,結果指出: 1.光合磷酸化輔助因素Vit.K及FMN促进Mehler反应,PMS无影响。2.离体叶綠体不加輔助因素或加入Vit.K或FMN的情况下,ATP与CH_3CHO的形成量有一定的数量关系。由此算出的P/O值約为同时測定的K_3Fe(CN)_6系統的P/O值的二倍。在偶联得完全的制剂中,P/O值达2。3.无論对电子传递还是磷酸化作用,pH、解联剂(NH_4~+)及叶綠体保存时間对Vit.K及K_3Fe(CN)_6系統的影响均有一致的趋势。4.在有氧条件下,P/O值与輔助因素的浓度无关。本文結果指出了Mehler反应与FMN或Vit.K导致的光合磷酸化实际上发生在同一个过程中,这样就进一步肯定了Vit.K与FMN导致的光合磷酸化都是属于非循环方式。对它們在生理上的可能作用也作了簡短的討論。

The Chinese jackdaws habiting in the poplar woods at the shoals of Sham-Tan River,always gather in large flocks with more than one hundred each in number. At about half past five every morning they divide themselves into three flocks and fly to the wheat fields at the foot of the Kaoliva Mountain to secure food.According to our observation,there are three maxima in the frequency of their getting food per day 5:30—9:00,14:00—15:00,and 17:30—19:00.In the first maximum,the number of the jackdaws is the greatest...

The Chinese jackdaws habiting in the poplar woods at the shoals of Sham-Tan River,always gather in large flocks with more than one hundred each in number. At about half past five every morning they divide themselves into three flocks and fly to the wheat fields at the foot of the Kaoliva Mountain to secure food.According to our observation,there are three maxima in the frequency of their getting food per day 5:30—9:00,14:00—15:00,and 17:30—19:00.In the first maximum,the number of the jackdaws is the greatest and the time-duration is also the longest. In the evening(usually at 19:00)they fly back to their habitat.The activities of the jackdaws show a close relation with the weather.On rainy days they often started off about one hour later and returned about one hour carlier. In July at the time of the harvest the main food of the birds is of wheat in these regions. According to the results we got from food analysis,wheat constitutes 90.13% of the total amount of food,consumed insects,4.20%,and others,5.60%.There are about 1500 jackdaws in a region of two square kilometers.Each of them consumes 10.69 gm.of wheat grains daily,thus consuming 12744 gm. of wheat per day(24.5 catties in all). For the purpose of diminishing the damages brought about by the jackdaw,appropriate preventive- measures should be taken during the harvest time.

寒鸦(Corvus monedula dauuricus Pollas)在甘肃武山滩歌地区常集聚成上百的大群,栖息于山丹河河漫滩的片状杨树林中,每天清晨5:30左右集群分三路飞往取食地高利瓦山下大片正在收割的麦田中取食。每日取食频率有三个高峯:5:30—9:00,14:00—15:00,17:30—19:00,其中以第一高峯频率最大,延续时同最长。这与其一夜过来的生理消耗有关。傍晚19:00仍沿三路飞回栖息地。寒鸦的活动与天气有密切的关系,阴雨天飞出推后一小时,返回则提前一小时。在麦收季节(七月)该地寒鸦主要以小麦为食,据食性分析结果,小麦占食物含量的90.13%,昆虫占4.22%,其它占5.6%。根据数量统计二公里的范围内有1500只左右,每日每只消耗粮食10.69克,则每天总共吃去麦子12774克,折合24.5厅,这个数字是值得注意的。因此看来寒鸦在该时该地,对农业带来的损失是大的,应予重视与适当的防治。

 
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