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大豆杂交
相关语句
  soybean cross
     GENETIC ANALYSIS ON RESISTANCE TO CERCASPARA SOJINA HARA OF PROGENIES OF DIFFERENT SOYBEAN CROSS COMBINATIONS
     不同类型组合大豆杂交后代灰斑病抗性的遗传分析
短句来源
     Effect of Planting Density on Selection Effectiveness of Soybean Cross Progenies
     大豆杂交后代种值密度对选择效果的影响
短句来源
     Adaptation of Soybean Cross Progeny as Influenced by Selection in Different Areas
     异地选择对大豆杂交后代适应性的影响
短句来源
     EFFECT OF PARENTAL DIFFERENCE, SELECTION LOCATIONAND SELECTION METHOD ON SETECTION EFFECTIVENESSOF SOYBEAN CROSS PROGENIES
     组合类型、选择地点及选择方法对大豆杂交后代选择效果的影响研究
短句来源
     The segregation distortion of 238 molecular markers in a RILs population from cultivated/semi-wild soybean cross was analysed.
     利用栽培大豆与半野生大豆杂交得到的F8代重组自交系,对238个分子标记的偏分离 现象进行了分析。
短句来源
  “大豆杂交”译为未确定词的双语例句
     Breeding of hybrid soybean HybSoy 1
     大豆杂交种杂交豆1号选育报告
短句来源
     Genetic Variation of the Agronomic Character in F_2 Generation of Soybean
     大豆杂交F_2代农艺性状的遗传变异分析
短句来源
     Analysis on Genetic Parameters of the Agronomic Characters in F_4 Generation of Soybean
     大豆杂交F_4代农艺性状的遗传变异参数分析
短句来源
     STUDIES ON SELECTION PARENTS AND EARLY GENERATIONS OF HIGH-PROTEIN BREEDING IN SOYBEANⅡ . CORRELATION BETWEEN PROTEIN CONTENT AND OTHER CHARACTERS IN F_2,F_3 AND F_4 GENERATIONS OF SIX SOYBEAN CROSSES
     大豆高蛋白育种的亲本选配和后代选择的研究 Ⅱ 大豆杂交F_2、F_3和F_4代蛋白质含量与其它性状的相关性
短句来源
     STUDIES ON SELECTION OF PARENTS AND EARLY GENERATIONS OF HIGH-PROTEIN BREEDING IN SOYBEAN I. CHARACTERISTICS OF GENETIC VARIABILITY OF PROTEIN CONTENT IN F_2, F_3, F_4 OF SIX SOYBEAN CROSSES
     大豆高蛋白育种的亲本选配和后代选择的研究——Ⅰ大豆杂交F_2、F_3、F_4代蛋白质含量的遗传变异特点
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  相似匹配句对
     Soy
     大豆
短句来源
     Development of Breeding of M Type Hybrid Soybean
     M型杂交大豆育种研究进展
短句来源
     ANALYSIS OF DIALLEL CROSSES FOR BREEDING OF HIGH PROTEIN CONTENT SOYBEANS
     大豆高蛋白育种双列杂交分析
短句来源
     Soybean (Glycine max (L.)
     大豆(Glycinemax(L.)
短句来源
     northern hybridization.
     Northern杂交
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  soybean cross
Monoclonal antibodies raised against the CDPKα from soybean cross-reacted with the 65-kDa protein in the flagella, and also with other proteins in the flagellum and cell body.
      


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...

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。

An estimation of heritabilities and genetic correlations in F_2populations and F_3 progenies of three crosses of different types ofsoybean was made in 1964—65.These crosses were Amur No.41×Shengao(Glycine max),Amur No.41×Semi-Cultivated YellowSoybean(G.gracilis)and Feng-dehuang×Wild Soybean(G.soja).The heritabilities of several important agronomic characters ofsoybean were estimated by three different methods.Results of suchevaluation showed that values of heritability estimated by broad sencemethod were the...

An estimation of heritabilities and genetic correlations in F_2populations and F_3 progenies of three crosses of different types ofsoybean was made in 1964—65.These crosses were Amur No.41×Shengao(Glycine max),Amur No.41×Semi-Cultivated YellowSoybean(G.gracilis)and Feng-dehuang×Wild Soybean(G.soja).The heritabilities of several important agronomic characters ofsoybean were estimated by three different methods.Results of suchevaluation showed that values of heritability estimated by broad sencemethod were the highest,those by correlation method were the lowestand those by variance analysis method were intermediate.The heri-tabilities of time of flowering,date of maturity and plant height werethe highest,those of number of nodes of main stem and weight of 100seeds ranked next,while those of number of branches were thelowest.Therefore,during the early generations of soybean crosses,characters with high heritability such as date of maturity and plantheight can be selected rigorously.In general,genotypic correlations were higher than the phenotypiccorrelations.Correlations between number of pods per plant anddate maturity,plant height,number of nodes of main stem,andnumber of branches were positive and significant.Envirenmentalcorrelations among the characters studied were generally not signi-ficant.

本试验用三个不同类型的大豆杂交组合 F_2与 F_3世代,进行了八个农艺性状的遗传力与性状相关的研究。用广义法、相关法、方差分析法估算了遗传力,以开花期、成熟期、株高的遗传力较高,单株荚数、单株粒重的遗传力较低,主茎节数、百粒重居中。计算了表现型相关、基因型相关及环境相关。成熟期、株高、主茎节数、分枝数与单株荚数有显著的正相关,基因型相关高于表现型相关。讨论了遗传力、性状相关与世代选择的关系。

Seven determinate and five indeterminate soybean [Glycine max(L.)Merr.]land cultivars from the lower Yangtze and Huai valleys were examined to clarify the blooming habit and to estimate the percentages of pod set of the two stem-termination types. The soybean plant was described as having main raceme and subraceme (including subbranches) subdivision on the floral nodes at the top and primary branch and secondary branch subdivision on the branch nodes at the bottom. Main raceme subdivision and primary branch...

Seven determinate and five indeterminate soybean [Glycine max(L.)Merr.]land cultivars from the lower Yangtze and Huai valleys were examined to clarify the blooming habit and to estimate the percentages of pod set of the two stem-termination types. The soybean plant was described as having main raceme and subraceme (including subbranches) subdivision on the floral nodes at the top and primary branch and secondary branch subdivision on the branch nodes at the bottom. Main raceme subdivision and primary branch subdivision were most important in producing flowers and pods for both stem-termination types.With a similar maturity, the determinate type had fewer main racemes,more subracemes, and more primary and secondary branches, as well as more flowers per main raceme on a corresponding node than did the indeterminate type.The peak blooming period of a plant was from the fourth to the fourteenth day after first flowering.During this period, the main raceme, primary brauch and secondary branch were also in peak blooming period. A uniform blooming habit different from Swen′s description was observed for the two stem-termination types; i.e.,on each subdivision, each node,and each raceme, the flowering order was basically from the lower to the upper, with the subraceme beginning to flower about the time that the main raceme at the same node finished blooming. For both stem-termination types the percentage of pod set was negatively correlated with maturity date and number of flowers, that on the main raceme was greater than on other subdivisions, and that on main racemes of various nodes showed an increase, then decrease, from lower nodes to upper nodes.The percentage of pod set was relatively high on the terminal raceme for the determinate type. That of subracemes tended to decrease from the lower nodes to the upper ones for both types, but at a corresponding node the percentage of pod set of the determinate type was higher than that of the indeterminate type. The results benefit to choose appropriate dates and inflorescences for hybridization in southern China.

江淮下游七个有限、五个无限结荚习性大豆地方品种用于研究开花习性、各部节位的结荚率。大豆植株划分为主花序、副花序、一次分枝及二次分枝四部分。生育期相近时,有限比无限着生较少主花序、较多后三者。对应节位主花序的花数也较多。开花结荚的主要部位为主花序及一次分枝,开花盛期为第4—14天。两种类型具有同一开花习性,即各部、节位,各花序的开花次序均为由下而上,同一节副花序在主花序开完后再开花。品种结荚率与成熟期及开花数为负相关。主花序结荚率常高于其他部分,各节主花序结荚率由下而上先增后减,但有限性品种顶端甚高;副花序结荚率由下而上降低,而对应节上有限比无限高。根据自然结荚率选择品种及部、节位可以提高南方大豆杂交成荚率。

 
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