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soybean     
相关语句
  大豆
    Studies on Gene Transfer of Soybean for Insect Resistance and Optimization of the Transformation Systems
    大豆抗虫基因转移及其转化系统优化研究
短句来源
    Inheritance of resistance to SMV3 and identification of molecular markers linked to resistance gene in soybean
    大豆对SMV3号株系的抗性遗传及分子标记研究
短句来源
    STUDIES ON MALE-STERLIE GENETICS CHARACTERS OF SPRING SOYBEAN S903B
    春大豆雄性不育系S903B的遗传特性研究
短句来源
    Construction of Soybean Genetic Map and QTL Analysis of Some Agronomic Traits
    大豆遗传图谱的构建及若干农艺性状的QTL定位分析
短句来源
    Studies on Genetic Transformation of Bivalent Fungi-resistant Genes into Soybean
    双价抗真菌病基因对大豆遗传转化的研究
短句来源
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  黄豆
    Effect of Succession Cropping and Soybean Stubble on Soybean Root Exudates
    大豆连作及其根茬腐解物对大豆根系分泌物中异黄酮类物质—黄豆甙元(daidzein)的影响
短句来源
    Using 133 Recombinant Inbred Lines (RIL) F7:10 lines derived from Wan 82-178 xTongshangbopi as experimental materials , The 133 F7:10 lines were planted in a random block design with two replication in summer 2003, and evaluated for three soybean quality traits and eight agronomic traits.
    所用材料仍是皖82—178x通山薄皮黄豆甲RIL群体(F7:10),采用随机区组设计,考察了133个家系的3个品质性状和8个农艺性状,从已有的SSR引物中随机选择了360对引物,筛选亲本间多态性,结果表明,双亲间有多态的有33对,剔除了在后代分析中严重偏分离的8对,最后剩下25对;
短句来源
    Guan yun hai bai hua were E3E3e7e7, Si jiao qi huan soybean is e4e4e7e7.
    2个位点基因型的种质有4个,包括泌阳牛毛黄和灌云海白花可能的基因型为E3E3e7e7、牛毛黄e3e3E7E7、四角齐黄豆的可能基因型是e4e4e7e7。
短句来源
    When the concentration range ofSUP-type soil moisture maintainer was between 0.1% and 0.3%, the treatmentshowed the significant results so that yield increase in soybean was 81% and that in cornwas 83%.
    供试SUP型保水剂在浓度范围为0.1%~0.3%时处理效果显著,黄豆增产81%,玉米增产3%。
短句来源
    In spring maize plot, the yields of maize, sweet potato, soybean and annual crop were increased 5. 9 %, 17. 5 %, 23. 1 % and 7. 3 %, respectively.
    春玉米区小麦减产4.0%,玉米增产5.9%,甘薯增产17.5%,秋季增种黄豆增产23.1%,周年粮食增长 7. 3%。
短句来源
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  大豆品种
    Study on the Characteristics of Photosynthetic and It's Relationship with Yield of Soybean Varieties
    大豆品种光合特性及其与产量关系的研究
短句来源
    STUDIES ON SOME CHARACTERS OF WATER CONSUMPTION AND WATER USE EFFICIENCY ON SOME SOYBEAN VARIETIES
    几种大豆品种若干耗水特性和水分利用率的研究(英文)
短句来源
    BREEDING AND SPREADING OF HENIONG26, A SOYBEAN CULTIVAR
    “黑农26”大豆品种选育推广的研究
短句来源
    ANALYSIS OF THE PEDIGREE OF SOYBEAN CULTIVARS IN HEILONGJIANG PROVINCE
    黑龙江省大豆品种系谱分析
短句来源
    STUDIES ON THE RESISTANCE TO SOYBEAN BORER Leguminivora glycinivorella (Mats.) Obraztsov IN SOYBEAN CULTIVARS
    大豆品种抗大豆食心虫(Leguminivora glycinivorella(Mats.Obraztsov)研究初报
短句来源
更多       
  大豆
    Studies on Gene Transfer of Soybean for Insect Resistance and Optimization of the Transformation Systems
    大豆抗虫基因转移及其转化系统优化研究
短句来源
    Inheritance of resistance to SMV3 and identification of molecular markers linked to resistance gene in soybean
    大豆对SMV3号株系的抗性遗传及分子标记研究
短句来源
    STUDIES ON MALE-STERLIE GENETICS CHARACTERS OF SPRING SOYBEAN S903B
    春大豆雄性不育系S903B的遗传特性研究
短句来源
    Construction of Soybean Genetic Map and QTL Analysis of Some Agronomic Traits
    大豆遗传图谱的构建及若干农艺性状的QTL定位分析
短句来源
    Studies on Genetic Transformation of Bivalent Fungi-resistant Genes into Soybean
    双价抗真菌病基因对大豆遗传转化的研究
短句来源
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  soybean
Determination of the residue of quizalofop-p-tefuryl in soybean by HPLC
      
A HPLC method was developed for the analysis of quizalofop-P-tefurylof in soybean.
      
The recoveries from the analytical method for soybean were 84.32%-89.25%.
      
Synthesis and application of phenolic resin internally toughened by chain extension polymer of epoxidized soybean oil
      
A novel epoxidized soybean oil (ESO) internally toughened phenolic resin(ESO-IT-PR) with both good toughness and excellent thermal stability was prepared as the matrix resin of copper clad laminate (CCL).
      
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The metabolic activity of various organs of the summer-sown soybean plant is highfrom the seedling stage to the differentiation of flower buds.The translocation of various as-similates at the beginning of flowering is more rapid than the earlier stages.The assimilatestranslocate massively from leaves to the storage and reproductive organs.Until floweringstage,the synthetic process rises gradually.Thence,the growth of pods goes on sub-sequently.During the period of flowering and pod-growing the concentration...

The metabolic activity of various organs of the summer-sown soybean plant is highfrom the seedling stage to the differentiation of flower buds.The translocation of various as-similates at the beginning of flowering is more rapid than the earlier stages.The assimilatestranslocate massively from leaves to the storage and reproductive organs.Until floweringstage,the synthetic process rises gradually.Thence,the growth of pods goes on sub-sequently.During the period of flowering and pod-growing the concentration of soluble sugars in-fluences significantly on the shedding rate of flowers and pods.The higher the concentrationof soluble sugars,the less the flowers and pods shed,and vise versa.The requirement of nitrogen is high during the period between flowering and pod forma-tion.The use of available nitrogeneous fertilizer in the early flowering stage would be favour-able to meet the nitrogen requirement of the plant,and results in higher yield.The highest rate of net assimilation of the plant occurs before maximum leaf area hasreached.

研究了夏大豆外部器官的形成、生长与体内醣氮代谢的关系。开花结莢期间茎内还原醣含量提高,花莢脱落减少;还原醣降低,花莢脱落增多。自盛花到结莢期间,需氮素最多。净光合生产率最高时期,是在叶面积最高阶段前期。

1.A close relationship is existed between the proper water content of soil and the incre-ment of flowers and prevention of pod-shedding of soybeans.Number of pods borne on a single soybean plant as well as seed yield would decrease and pod-shedding rate would increaseas the plant suffered from drought during flowering and pod-bearing stage.The suffering isparticularly severe if drought occurs in late July when soybeans are on full-blooming-stage.Under such condition the growth and development...

1.A close relationship is existed between the proper water content of soil and the incre-ment of flowers and prevention of pod-shedding of soybeans.Number of pods borne on a single soybean plant as well as seed yield would decrease and pod-shedding rate would increaseas the plant suffered from drought during flowering and pod-bearing stage.The suffering isparticularly severe if drought occurs in late July when soybeans are on full-blooming-stage.Under such condition the growth and development of soybean plant would be hindered andless vigorous;pod-shedding rate would sharply increase while seed size would be larger.InAugust when pods are on forming-stage,drought would cause less damage on plant vigor butpod-shedding rate would be comparatively high,seed size would noticeably decrease,andpod-formation-stage 70%,and pod-filling-stage 60-65%.The experimental results of the past several years have showed that,in the leachedchernozen soil region of North East of China,the proper soil water content (in per centof water holding capacity) of the 0-5 50 cm.soil layer of the high yielding soybean field duringdifferent soybean growing stage should be:branching-stage 55-60%, blooming-stage 60-70,%,pod-forming-stage 70%,and pod-filling-stage 60-65%.2.If the density of stand and planting method are regulated according to soil fertility,number of pods per unit area would greatly increase,owing to that under such conditionsillumination and soil fertility can be fully utilized by soybean plants,and resulting in theincrement of photosynthetic rate and accumulation of photosynthetic products.Under lessfertile soil when variety Small Golden Yellow No.1 is used,and row distance is 60 cm.,thesuitable density of stand would be 250-300 thousands of plants per hectare.Under more fertileconditions the suitable density of stand should decrease to 100-150 thousands of plants perhectare.As to the method of planting,on fertile soil the 45×45 cm.square method with 3-5plants in each hill is much better than drilling method of which the distance between rows is50 cm.or 60 cm.Under square method,both of the rate of pod-bearing and the rate of pod-shedding of soybeans are high.When potato or wheat is interplanted between the rows of soybean,utilization of illumina-tion and soil fertility as well as microclimatic conditions are greatly improved.This wouldeffectively raise the number of pods of the individual soybean plants.For interplantation2:2 or 3:3 ratio is recommended for the fertile soil.3.The best time of topping (on comparatively fertile soil) of soybeans is preliminarilyconsidered to be on late blooming-stage.Topping on branching-stage is next,while on earlyblooming-stage ranks the third.Fertilizers containing NK Show the best result when theyare applied on late blooming-stage,while P fertilizer gives best result when it is applied onbranching-stage.The spraying of 3% of superphosphate solution for 2-3 times on leaves of soybeans duringthe pod-bearing stage (early August) can reduce the rate of pod-shedding.4.The spraying of minor-elements on soybean plants during full-blooming- and earlypod-forming-stage can increase intensity of respiration and photosynthetic capacity,andthus,beneficial for the increase of seed yield.The proper concentration of ammoniummolybdate solution sprayed during full-blooming-stage and early pod-forming-stage is 0.05%,while that of zinc sulphate sprayed during full-blooming-stage is 0.01%.5.Paying great attention to fieid management and adopting the practice of deep plowingare effective measures to promote soybean plants to have a vigorous growth and to bear moreflowers and pods.

本文根据几年来的调查及试验资料,研究了不同栽培条件对大豆花莢脱落的影响;提出了在吉林省一般栽培条件下的大豆增产措施。

Since 1953,progenies of F_2 to F_6 generations of soybean crosses between Man-tsang-chinand Nanking Early Green had been used for selection with both mass and pedigree selectionmethods.The progenies were selected for:3 different dates of maturity,3 different size ofseeds and determinate and indeterminate of pod bearing habit.The effectiveness of the twoselection methods were compared from F_3 to F_6 generations on the basis of maturity,podbearing habit,and seed size.On 1957,hybrids of each cross of the...

Since 1953,progenies of F_2 to F_6 generations of soybean crosses between Man-tsang-chinand Nanking Early Green had been used for selection with both mass and pedigree selectionmethods.The progenies were selected for:3 different dates of maturity,3 different size ofseeds and determinate and indeterminate of pod bearing habit.The effectiveness of the twoselection methods were compared from F_3 to F_6 generations on the basis of maturity,podbearing habit,and seed size.On 1957,hybrids of each cross of the other 4 soybean crosseswere divided into two equal parts and subjected separately to the mass and pedigree selec-tions with similar selection purposes until F_5 generation.On F_4 and F_5 generations,char-acters of plants obtained by the two different methods were measured and compared.On F_6generation,seeds from each of the selected F_5 plants were grown as line and the characters,including yield capacity,were recorded and compared.The experimental results pointed out that the selection effectiveness of the two methodswhich affected on the characters of maturity,pod bearing habit,plant height and seed size,are quite similar,In certain cases,materials obtained from mass selection seemed to mature1-2 days later,but in some other years the cases were reversed.Materials of one cross ob-tained by pedigree method showed a tendency of possessing taller plant height.The present study pointed out that,a bulk breeding system consisting of selecting theearly generation hybrid materials with mass selection method followed by an individual plantselection on F_5 generation,is an effective and plain method for soybean breeding.Thereasons why such a system is as effective as the predigree breeding system are as follows:1.Characters subjected to mass selection such as date of maturity,pod bearing habit andplant height,are easy to distinguish in the field.2.During the course of mass selection,the direction of selections on date of maturity,plant height and pod bearing habit are quitethe same as that of natural selection and thus makes the mass selection effective and efficient.3.Date of maturity,plant height and pod bearing habit of soybeans are characters withhigher heritability,and thus they are suitable to be subjected for mass selection during theearly generations.Characters with lower heritability,such as yield and oil content,may besubjected to single plant selecion in F_5 or later generations.4.An ecological type adaptableon date of maturity,pod bearing habit,seed size and plant height,is an adequate material forhigh yield selection.Mass selection of soybean hybrid materials can furnish such adaptableecological type and thus to ensure the successive individual plant selection for securing thehigh yield lines.From 1952,we also started to subject the residual portion of hybrid materials of 21 soy-bean crosses of our pedigree breeding work to bulk breeding system.The final result of theparallel consecutive selection pointed out that the best variety N.E.No.4 had been bred outthrough the use of bulk breeding system.Therefore,it is also preferable to emphasize thatthe effectiveness of the bulk breeding system is quite convenient for handling the hybrid materialsin our practical soybean breeding works.rks.

通过多年的系统试验,证明对大豆杂交早期世代的材料,用混合选择法针对成熟期、株高、结莢习性,以及种粒大小等性状进行定向的选择,效果并不次于系谱选择法,但却简便易行。大豆杂交材料经过数代的定向混合选择,便形成为能适应当地条件与要求的优良生态类型。在这个基础上,再用个体选择法进行选择,能较有保证地选育出高产优质抗性強的优良品系。

 
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