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基因型小麦     
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  wheat genotypes
     The nitrogen fertilization could greatly increase zinc concentration and uptake to all of wheat genotypes tested,and they increased by 7.6%,22.9% averagely,respectively,but the iron concentration decreased 6.4% and the iron uptake increased by 7.2%;
     施用氮肥后,显著提高了各基因型小麦植株的锌含量与锌携出量,平均提高7.6%和22.9%,而小麦植株铁的含量降低6.4%,但携出量提高7.2%;
短句来源
     Sensitivity of Different Wheat Genotypes to Basta
     不同基因型小麦对除草剂Basta敏感性研究
短句来源
     The Differences and Physiological Mechanisms on Potassium Efficiency among Different Wheat Genotypes
     不同基因型小麦钾效率差异及生理机制
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     To study the factors affecting VA mycorrhizal dependency (MD) and mechanism involved, three wheat genotypes with high (H), middle (M) and low (L) phosphorus efficiencies were inoculated with or without Glomus mosseae or Glomus versiforme at two phosphorus application level of w (P 2O 5) 20 mg/kg and 60 mg/kg.
     以高、中、低效3 个磷效率基因型小麦为试材,在w(P2O5) =20 mgkg 和60 mgkg 的水平下,接种或不接种两个VA菌根真菌Glomus mosseae 和Glomusversiforme,研究了影响小麦菌根依赖性的因子及机理.结果表明,在低磷水平下,小麦菌根依赖性的大小顺序为中效> 低效> 高效;
短句来源
     Effects of CaCO_3 and Zn on growth and Zn uptake of five winter wheat genotypes as well as HCO_3~- concentration and pH in nutrient solution
     碳酸钙和锌对五种基因型小麦生长、锌吸收及营养液中HCO_3~-含量和pH的影响
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  genotype wheat
     Leaf physiological characteristic and its correlation with yield characters of super high yield genotype wheat were investigated using 14 genotypes.
     以 14个不同基因型小麦为试验材料 ,对超高产基因型小麦冠层结构的生理特性及其与有关产量性状的相关性进行了研究。
短句来源
     However,Km and Imax of different genotype wheat behaved differently under different K status,the value of which was influenced by the nutrition condition of wheat itself.
     但不同基因型小麦Km和Imax在不同钾营养状况下表现规律不相同,Km和Imax值的大小受到小麦本身钾营养状况反馈调节,植物钾营养状况越高,Km越大,Imax越小;
短句来源
     Studies on the Differences of Potassium Efficiency of Different Genotype Wheat Varieties
     不同基因型小麦品种钾效率差异性研究
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     Temperature and moisture influence somatic embryogenesis and somatic differentiation of immature embryos in different genotype wheat
     温度和水分对不同基因型小麦未成熟胚体细胞胚胎发生以及分化能力的影响
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     Study on potassium uptake kinetics by different genotype wheat
     不同基因型小麦钾离子吸收动力学分析
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  genotypes wheat
     Amortizing functions of potassium nutrition on different genotypes wheat seedling under NaCl stress
     钾营养对不同基因型小麦幼苗NaCl胁迫的缓解作用
短句来源
     Methods:Effects of aluminum stress on the activities of SOD,POD,CAT and contents of MDA in root and leaf of four genotypes wheat seedlings with different tolerance to Al toxicity were studied.
     方法:采用室内水培试验法,研究了不同浓度铝胁迫对耐性不同的几种基因型小麦叶片和根系内SOD、CAT、POD活性和MDA含量的影响。
短句来源
     The effects of potassium nutrition on the growth,soluble carbohydrate content,electrolyte leakage and MDA content,and the activities of antioxidant enzymes of different genotypes wheat seedling were investigated under NaCl(100 mmol/L) stress using sand cultivation under laboratory conditions.
     在温室砂培条件下,研究了钾营养对NaCl胁迫下不同基因型小麦幼苗生长、植株可溶性糖、丙二醛(MDA)含量及几种抗氧化酶活性的影响。
短句来源
  genotypic wheat
     Responses of different genotypic wheat seedlings to phosphorus and water deficiency
     不同基因型小麦苗期对低磷和水分胁迫的反应
短句来源
     Relationship Between Drought Resistance and Betaine Aldehyde Dehydrogenase in the Shoots of Different Genotypic Wheat and Sorghum
     不同基因型小麦和高梁的抗旱性与其种芽甜菜碱醛脱氢酶的关系(英文)
短句来源
     The Seedling Establishment of Different Genotypic Wheat under Water Stress Condition
     不同基因型小麦种子水分胁迫下的成苗研究
短句来源
     Under controlled phosphorus (P) nutrition status, endosmosis permeability, root dehydrogenase activity of foliar, SOD activity and water utilization of different genotypic wheat seedlings were investigated in nutrient solution culture and irrigation controlled basin culture.
     在控制磷供应水平的条件下 ,通过营养液培养和控制灌水量的盆栽试验 ,研究了不同基因型小麦苗期的细胞膜透性、根系脱氢酶活性、SOD活性以及水分利用状况。
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      wheat genotypes
    Protein composition and native state of pigments of thylakoid membrane of wheat genotypes differently tolerant to water stress
          
    Steady-state levels of the core antenna of PS II (CP47 and CP43) and light-harvesting Chl a/b-apoproteins (LHC) II in the 29.5-24 kD region remained more or less unchanged in both wheat genotypes.
          
    Analysis of its primary structure showed that the difference between L-16(1) and the parental wheat genotypes may be related to a mutation that had occurred during the development of the alloplasmic line at the binding site of an arbitrary primer.
          
    Genetic analysis of ten common wheat genotypes using testers carrying genes Pan1, Pc1 and Pc2 showed that these genotypes contained Pan1 and Pc2 genes.
          
    Hardening of all wheat genotypes tested resulted in the accumulation of thermostable cold-regulated (COR) polypeptides with mol wts of 209, 196, 169, 66, 50, and 41 kD.
          
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    Wheat cultivars of different genotypes selected from different places showed in a three year experiment a common law in their milking stage that the accumulation of dry material during this stage was done at a slow—fast—slow speed, in accordance with a "S" type distribution. Each cultivar was found to have a specific peak milking stage, during which the entrance of nutrition into grains tended to follow an indicial equation of y=ab~x. Several evironmental factors affecting milking were analysed by multiple regression...

    Wheat cultivars of different genotypes selected from different places showed in a three year experiment a common law in their milking stage that the accumulation of dry material during this stage was done at a slow—fast—slow speed, in accordance with a "S" type distribution. Each cultivar was found to have a specific peak milking stage, during which the entrance of nutrition into grains tended to follow an indicial equation of y=ab~x. Several evironmental factors affecting milking were analysed by multiple regression method and an optimum equation was suggested for the main factors affecting grain weight. The relationship between the source, distribution, and pool was studied. Some cultivars with goodmilking were selected out.

    选用各地不同基因型小麦品种,经三年连续试验,初步揭示出不同品种在灌浆期的共同规律:籽粒干物质累积按慢—快—慢顺序,呈“s”形分布;不同品种各有灌浆高峰期。此期内营养物质流进入籽粒是符合y=ab~x方程。对于影响灌浆的多种外界因素,经过多元逐步回归分析,提出了影响粒重的主要因素最优方程。研究了灌浆期源、库、流关系,并探明若干具有优良灌浆性状的品种。

    Thirty-four genotypes of Triticum aestivum were comparatively examined with regard to their immature embryo response in in vitro culture.Callus induction frequency of all the genotypes tested varied from 100% to 71% with an average of 92.4%.Since such a moderate variation may be attributed to either environmental factors conditioning the physiological state of the donor plants,or artificial factors imposed during the experimental manipulation,it seems that no substantial differences exist among the genotypes...

    Thirty-four genotypes of Triticum aestivum were comparatively examined with regard to their immature embryo response in in vitro culture.Callus induction frequency of all the genotypes tested varied from 100% to 71% with an average of 92.4%.Since such a moderate variation may be attributed to either environmental factors conditioning the physiological state of the donor plants,or artificial factors imposed during the experimental manipulation,it seems that no substantial differences exist among the genotypes in terms of their response to callus induction.In contrast,regenerable or shoot-forming callus frequency varied remarkably with genotype,ranging from 60% to 0% with an average of 32.7%.Although,for a given genotype,it also varied from year to year,the presence or absence of the regenerability seems to be a stable genetic attribute.Therefore,response to callus induction and regenerability of the callus in culture of immature embryo of wheat may be conditioned by different genetic mechanisms.In Spite of the optimal embryo size for in vitro culture seeming to be about 1 mm in length,upon a longer period of time in culture,scutellar callus could even be successfully initiated with embryos as small as 0.3 mm.Callus induction frequency and differentiation frequency in the latter case appeared as high as about 100% and 60%,respectively.

    本文对34种基因型的小麦未成熟胚在离体培养中的反应进行了比较。结果表明,94%的供试基因型愈伤组织诱导率都可达到80%以上,若排除供体植株环境条件的不同和接种过程中的人为因素可能造成的影响,不同基因型的愈伤组织诱导率看来没有根本的差异。愈伤组织分化率因基因型的不同变动在0—60%之间,平均为32.7%。虽然同一基因型的盾片愈伤组织分化率在不同年份中有所不同,但是愈伤组织是否具有再生能力?看来是个稳定的遗传性状。因此小麦未成熟胚对愈伤组织诱导的反应和愈伤组织的再生能力可能具有不同的遗传基础。本文的结果还表明,虽然最适于培养的未成熟胚的大小为1毫米左右,伹小至0.3毫米的未成熱胚仍能以几乎100%的频率形成愈伤组织,60%左右的愈伤组织能分化出再生檀株,只是所需的时间比1毫米左右的胚较长。

    Photosynthetic rate(P_N),ribulose 1,5-bisphosphate carboxylase(RuBPCase)and leafconductance of the sixth and flag leaves of different wheat genotypes were examined to de-terrnine whether differences in RuBPCase and leaf conductance could be related to knowndifferences in their P_N.The significant variation in P_N was observed that the wild diploid T.boeoticum had higher P_N than other wheat genotypes.Differences in P_N among wheatgenotypes were not explained by differences in RuBPCase,since there was no significantcorrelation...

    Photosynthetic rate(P_N),ribulose 1,5-bisphosphate carboxylase(RuBPCase)and leafconductance of the sixth and flag leaves of different wheat genotypes were examined to de-terrnine whether differences in RuBPCase and leaf conductance could be related to knowndifferences in their P_N.The significant variation in P_N was observed that the wild diploid T.boeoticum had higher P_N than other wheat genotypes.Differences in P_N among wheatgenotypes were not explained by differences in RuBPCase,since there was no significantcorrelation between P_N and RuBPCase activity,sepcific activity,activation and content,and no significant correlation between P_N and the ratio of RuBPCase protein to total solu-ble protein.Also,there was no significant correlation between P_N and the stomatalconductance(r=+0.284).On the other hand,higher P_N was associated with highermesophyll conductance(r=+0.802(***),significant at the 0.001 probability),so the varia-tion in P_N among wheat genotypes was to a significant extent attributable to their differ-ences in mesophyll conductance.

    不同基因型小麦旗叶和苗期第6叶的光合速率具有明显的差异,其中野生一粒小麦(T.boeoticum)具有较高的光合速率。实验没有观察到二磷酸核酮糖羧化酶(RuBPCase)的含量、活性、活化作用以及叶片的气孔导度与光合速率之间的显著相关性;但不同基因型小麦叶片的叶肉导度与光合速率之间具有极显著的正相关(r=+0.802~(?),α=0.001)。这表明不同基因型小麦光合速率的差异可能是由于它们的叶肉导度的差异造成的。

     
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