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later generation
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  晚世代
     The cleavage and schistosity acted as an axial plane role in the early generation of compressed shear fold, and changed into a slip plane in the later generation of flexural slip fold.
     片理(劈理)为早世代挤压-剪切褶皱的轴面片理,又成为晚世代弯滑褶皱的滑动面;
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     The earlier generation of albite and the albite inclusion in “snowball structure” have the lower average phosphorus content (0 18% and 0 19% respectively). The later generation of albite and the inset albite in zoned K feldspars contain higher phosphorus (0 25% and 0 23% in average).
     早世代钠长石和雪球结构中钠长石包裹体的结晶较早,平均磷含量分别为0.18%和0.19%,而晚世代钠长石和环带钾长石中钠长石嵌晶的结晶稍晚,具较高的平均磷含量(分别为0.25%和0.23%)。
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     This project used the strategy of discarding susceptible individual Plants and keeping resistance ones by resistance identification in breeding populations and Planted resistant plants next in earlier generations (F1 - F3), and performing marker-assisted selection combining resistance identification in later generation (F4 generation) for pyramiding powdery mildew resistance.
     采用了在早代进行抗性鉴定、淘汰感病株、保留抗病株继续种植、较晚世代(F4代)进行抗性鉴定结合分子标记辅助选择的策略,提高了选到聚合抗性植株的效率。
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  “later generation”译为未确定词的双语例句
     In the meantime, the author depicted the mentality of the dying by employing the techniques of national features, which is of inspiring significance for the literary creation of the later generation.
     作者在刻画人物濒亡心理时所运用的以言行传心、悬想代言等具有民族特色的手法 ,对后世的文学创作也有重要的启示意义
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     4.Systematic method and analogy in it can be followed by the later generation.
     (4)系统、类比的治字方法,值得后人借鉴。
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     (2)Improving Luxi cattle by means of Limousin cattle,the hy-briding superiority of later generation is very significant(P<0.01).
     (2)用利木赞种牛改良鲁西黄牛,其杂交后代在生长速度和体尺指标方面明显优于鲁西黄牛(p<0.01)。
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     The Greek word eimi could be seen in a sense as a gene of Western culture and philosophy,because all metaphysical and ontological problems in later generation,even the basic problem of Chinese contemporary philosophy,are derived from this word.
     希腊语词eimi可以视为西方文化或哲学的基因,因为后世一系列哲学形而上学的问题,甚或中国现代哲学的基本问题,皆从该词生发而来。
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     Regarding the decision history rise and fall factor,The Pre-Qin Scholars' have highly carried on profoundly,the multi-dimensional ponder from the history and the philosophy,they about the historical rise and fall summary and the ponder,produced to our country nationality's historical thought and the later generation historiography have been profound impact.
     对于决定历史盛衰的因素,先秦诸子从历史与哲学的高度进行了深刻、多维的思考,他们关于历史盛衰的总结和思考,对我国民族的历史思维及后世史学产生了深刻的影响。
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  相似匹配句对
     Epistemology of the Later Generation of Mohism
     摹略万物之然——后期墨家认识论
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     Later ,M.
     随后,M.
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     On "Generation
     “代”论
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     Be Responsible for the History and Be Responsible for the Later Generation
     对历史负责,对后人负责
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     On the Younger Generation
     论晚生代
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  later generation
×lloydii in eastern Pecos County, Texas, is a complex and dynamic population probably comprising first and later generation hybrids, including backcross hybrids.
      
Local transition functions of elementary cellular automata show different tendencies to replicate parts of a configuration in a later generation.
      
Method of designing fourth and later generation computers
      
Two lines that were resistant in the R1 generation and susceptible in the R4 were examined in more detail in order to determine if transcriptional silencing of the transgene was occurring in the later generation.
      
The ratio of adult muscle fibre to primary myotube numbers was approximately 70∶1, making it seem unlikely that every later generation myotube used a primary myotube as scaffold for its formation, as described in small mammals.
      
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Heterosis and genetic variance component studies on 36 wheat crosses and 14 parentsrevealed that:1.Yield per plant,kernels per spike and kernel weight of F_1 hybrids showed a markedheterosis over mid-parental values by 20-30%.Plant height and date of heading ranked next,which averaged about 10% in magnitude,being negative in direction for heading date.Fertilespikelets per head manifested only a slight degree of heterosis.F_(1-)MP's for these characterswere highly significant as shown by t-tests.However,head...

Heterosis and genetic variance component studies on 36 wheat crosses and 14 parentsrevealed that:1.Yield per plant,kernels per spike and kernel weight of F_1 hybrids showed a markedheterosis over mid-parental values by 20-30%.Plant height and date of heading ranked next,which averaged about 10% in magnitude,being negative in direction for heading date.Fertilespikelets per head manifested only a slight degree of heterosis.F_(1-)MP's for these characterswere highly significant as shown by t-tests.However,head length,kernel weight per head andheads per plant showed,on the average,no heterosis.2.Variability of heterosis of these characters descended in the following order:yield perplant→heads per plant,fertile spikelets per head→kernel weight per head,kernel perhead→kernel weight→heading date→head length,plant height.3.Heritability estimates (in the broad sense) as analyzed from F_1 data were from highto low as follows:head length→plant height→kernel weight→kernel weight per head→kernel per head,fertile spikelets per head→heads per plant,yield per plant.4.Relative values of general comining ability (g.c.a.) from high to low were as follows:head length,fertile spikelets per plant→plant height,kernels per head→kernel weight perhead→kernel weight,heads per plant→yield per plant.For yield per plants,specific com-bining ability played an important role.5.There was a close relation between the general combining ability value and the cor-relation or regression coefficient of F_1 on m(?)d-parental values.The larger the g.c.a.value,the higher the correlation or regression coefficient,indicating that many characters of F_1 hybridswere determined to a certain extent by parental means.The r or b value became non-significantas the g.c.a.decreased below 40%.6.In predicting the breeding value of parents or hybrid combinations,actual performanceof F_1 hybrids should be emphasized first.The extent of heterosis might also be of value,sincea part of heterosis arisen from epistasis could be fixed in later generations.Mid-parentalvalues were of considerable importance.

本文通过优势和配合力的分析研究小麦亲本选配问题。试验表明:杂种第一代的一株粒重、一穗粒重、千粒重的优势最大,一般比两亲平均值大20—30%;其次为株高和抽穗期:其他穗部性状的优势很小或无显性。应用遗传变量成分分析法估算八个性状的配合力,在供试的亲本中,以穗长和结实小穗数的一般配合力为最大;株高、一穗粒数和一穗粒重次之;千粒重与一株穗数,一般配合力和特殊配合力所占的比重互有高低,因组合类型而异;一株粒重的一般配合力最小,它的特殊配合力占居主导地位。一般配合力大的性状,杂种与两亲平均值的相关或迴归系数也大。初步认为,在第一代对亲本或组合的评价,既要看杂种的实际表现,还要考虑它的优势,而以前者为主要依据;两亲平均值也有相当重要的意义。

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...

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。

In 1963, five neighbouring brigades with different cropping systems in Yuankiang and Nanhsien, Hunan were chosen for the comparative studies on the relations between the cropping system and the population of the paddy borer, Tryporyza incertulas (Wlk.), in order to look for the most economical and effective tactics and methods of control for this serious pest. The chief results were summarized as follows: 1. Among neighbouring brigades in the same region, a sharp difference in the amount of initial population...

In 1963, five neighbouring brigades with different cropping systems in Yuankiang and Nanhsien, Hunan were chosen for the comparative studies on the relations between the cropping system and the population of the paddy borer, Tryporyza incertulas (Wlk.), in order to look for the most economical and effective tactics and methods of control for this serious pest. The chief results were summarized as follows: 1. Among neighbouring brigades in the same region, a sharp difference in the amount of initial population of the paddy borer is one of the important factors influencing its population and damage in the current year. To destroy almost thoroughly the hibernating larvae of the paddy borer by means of cultural practices on a sufficient scale, not only the damage by the first and second generations could be prevented, but the population and damage of the later generations might also be reduced. On this basis, if it is possible to suppress further the population of the second generation by ploughing and flooding the early rice fields on proper time, the damage made by the later generations might be even more effectively repressed. 2. The degree of borer damage depends upon the combined effect of the degree of coincidence of the vunlerable growth stages of rice and the prevailing period of larval hatching and also the borer population. So far as cultural centrol is concerned, to regulate the growth stages of rice and the repression of borer population should be both utilized as much as possible. 3. The cultivation of double-cropping rice (with two crops on the same fields per year) brings not only advantageous but also disadvantageous effects to the development of the paddy borer. Under the conditions of Yuankiang and Nanhsien, Hunan, certain practices in the cultivation of double-cropping rice might be utilized as a part of the means of paddy borer control. 4. In rice belts with complicated cropping system, early planting of the medium-rice could not only avoid serious borer damage, but might also induce the second generation moths laying more eggs on small areas of late medium-rice or single cropping late rice, thus making it possible to kill more borers with less insecticides and save the burden of chemical control for the following generation. 5. It was suggested that the paddy borer control should be carried on the basis of cultural methods, that is, to supress the borer population and regulate the growth stages of rice by means of cultural practices as much as possible, and then recruited with necessary applications of insecticides.

1963年在湖南沅江及南县选择隣近的种植制不同的五个生产大队,調查对比、分析耕作栽培措施及其他生态因素,与三化螟种羣数量消长及为害程度的关系,探索最經济有效的稻螟防治策略和综合措施。各对比点結果一致証明,在同一地区相距不远的大队間,三化螟发生基数大小的悬殊差別,是决定当年发生数量及为害程度輕重的一个重要因素。在适当的面积(大队)上結合耕作栽培措施相当彻底地消灭三化螟越冬幼虫,不仅可控制第一、二代的为害,且对压低第三、四代的发生量和为害程度也有明显的作用。在此基础上如能进一步结合夏收灭茬連續压低虫源,更可加強对后期螟害的控制。螟害程度决定于水稻最易受害生育期与稻螟盛发期配合的程度和螟虫发生数量的綜合影响。因此,在农业防治方面,結合耕作栽培措施压低虫源及調节水稻生育期并恶化螟虫的生活条件,均应尽可能的利用。扩种双季稻对三化螟的发生为害有有利和不利的两面。在湘北滨湖稻区的情况下,可以結合双季稻的耕作栽培,連續压低虫源作为控制螟害的一項措施。在种植制复杂的稻区,中稻早栽既可避免第三代三化螟的为害,且可促使第二、三代三化螟更多地集中在小面积的迟中稻或单季晚稻上,有利于集中施药歼灭。稻螟的防治策略应以农业防治为基础,結合...

1963年在湖南沅江及南县选择隣近的种植制不同的五个生产大队,調查对比、分析耕作栽培措施及其他生态因素,与三化螟种羣数量消长及为害程度的关系,探索最經济有效的稻螟防治策略和综合措施。各对比点結果一致証明,在同一地区相距不远的大队間,三化螟发生基数大小的悬殊差別,是决定当年发生数量及为害程度輕重的一个重要因素。在适当的面积(大队)上結合耕作栽培措施相当彻底地消灭三化螟越冬幼虫,不仅可控制第一、二代的为害,且对压低第三、四代的发生量和为害程度也有明显的作用。在此基础上如能进一步结合夏收灭茬連續压低虫源,更可加強对后期螟害的控制。螟害程度决定于水稻最易受害生育期与稻螟盛发期配合的程度和螟虫发生数量的綜合影响。因此,在农业防治方面,結合耕作栽培措施压低虫源及調节水稻生育期并恶化螟虫的生活条件,均应尽可能的利用。扩种双季稻对三化螟的发生为害有有利和不利的两面。在湘北滨湖稻区的情况下,可以結合双季稻的耕作栽培,連續压低虫源作为控制螟害的一項措施。在种植制复杂的稻区,中稻早栽既可避免第三代三化螟的为害,且可促使第二、三代三化螟更多地集中在小面积的迟中稻或单季晚稻上,有利于集中施药歼灭。稻螟的防治策略应以农业防治为基础,結合重点药治。在种植制复杂的稻区建議采取結合耕作栽培連續压低虫源、調节水稻生育期及恶化螟虫生活条件的各項措施并药治二代桥梁田,对三、四代进行重点药治。

 
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