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inheritance and correlation
相关语句
  遗传及相关
     Studies on Inheritance and Correlation of Some Quality Characteristics in Winter Wheat
     冬小麦若干品质性状遗传及相关的研究
短句来源
     Inheritance and Correlation Analysis of Dehydrating Speed of Corn Seeds and Effect of Technical Measures to the Dehydration
     玉米子粒脱水速度的遗传及相关分析和技术措施对脱水的影响
短句来源
     ANALYSIS OF INHERITANCE AND CORRELATION OF STABILITY ON YIELD AND COMPONENTS IN MAIZE
     玉米产量及组成性状稳定性的遗传及相关分析
短句来源
  遗传和相关性
     Study on Inheritance and Correlation of Tassel in Maize
     玉米雄穗的遗传和相关性研究
短句来源
     Studies on the Inheritance and Correlation of the Main Special Properties about Giant Spike Wheat Germplasm
     巨穗小麦种质主要特异性状的遗传和相关性研究
短句来源
  遗传与相关
     Analysis of Inheritance and Correlation of Spike-section Characteristics in Hexaploid Wheat
     普通小麦穗部性状的遗传与相关分析
短句来源
  “inheritance and correlation”译为未确定词的双语例句
     Study on Inheritance and Correlation of Rice Quality Characters & Agronomic Characters of Middle Indica Hybrid Rice
     杂交中籼品质性状和农艺性状的遗传及其相关性的研究
短句来源
     ON INHERITANCE AND CORRELATION OF MAIN CHARACTERS OF MALTING BARLEY
     啤酒大麦主要性状遗传特性和相关性初探
短句来源
     INHERITANCE AND CORRELATION OF ROOT CHARACTERISTICS AND LEAF WATER POTENTIAL IN RICE (ORYZA SATIVA L.)
     水稻根系性状和叶片水势的遗传及其相关研究
短句来源
     Studies on Inheritance and Correlation of Three Main Diseases in Upland Cotton
     陆地棉三种主要病害的遗传特性及其相关性研究
短句来源
     The inheritance and correlation of the main characters of 7 malting barley varieties were studied using the method put forward by Robinson(1949)and S.Wright(1921).
     Wright等提出的方法对7个啤酒大麦品种主要性状遗传特性及其相关性进行了初步研究,结果表明:(1)千粒重、主穗粒数的遗传力较高,遗传变异系数较大,直接选择效果较好. (2)穗茎长可作为株型识别的指标之一,一般以中等为好.
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  inheritance and correlation
Inheritance and Correlation of Self-Compatibility and other Yield Components in the Apricot Hybrid F1 Populations
      


The inheritance and correlation of the main characters of 7 malting barley varieties were studied using the method put forward by Robinson(1949)and S.Wright(1921). The results showed as follows;

本文用Robinson和S.Wright等提出的方法对7个啤酒大麦品种主要性状遗传特性及其相关性进行了初步研究,结果表明:(1)千粒重、主穗粒数的遗传力较高,遗传变异系数较大,直接选择效果较好.(2)穗茎长可作为株型识别的指标之一,一般以中等为好.(3)选育生育前期较长、分蘖力较强的品种利于提高产量.(4)以中矮杆为主,结合考虑株穗数、穗粒数和千粒重进行高产育种是可行的.

This paper studies the inheritances and correlations of wood quality char acteristics among Populus×'popularis'improved clones.The significant diff erences among.clones were found in fiber length,fiber widness,ratio of len gth to widness,(doublp) wall thickness,wood specific gravity,widness of annual ring,tree height,DBH and volume.1.Higher reapitabilities,larger genetic'coefficients of variation and genetic gains were found in fiber length,ratio of length ti widness and woodspecific gravity.2.No significant...

This paper studies the inheritances and correlations of wood quality char acteristics among Populus×'popularis'improved clones.The significant diff erences among.clones were found in fiber length,fiber widness,ratio of len gth to widness,(doublp) wall thickness,wood specific gravity,widness of annual ring,tree height,DBH and volume.1.Higher reapitabilities,larger genetic'coefficients of variation and genetic gains were found in fiber length,ratio of length ti widness and woodspecific gravity.2.No significant correlations were found'between wood specific gravity and growth traits,wood specific gravity and fiber traits according to three methods of simple correlation,path analysis add canonical correlation anal ysis.3.Fiber length,tree height and DBH have larger direct effect to volume.Fiber widness and ratio of fiber length to widness have negativ direct effect to volume.4.Two group traits of fiber traits and growth traits were significant correlation due to the correlations of fiber widness with volumel ratio of length to widness with tree height ;fiber wall thickness with widness of annual ring.

以群众杨改良无性系研究了木材材性性状的遗传及性状之间的相关。9个性状纤维长、纤维宽、长宽比、纤维壁厚、木材密度、年轮宽、树高、胸径、材积在无性系间存在显著或极显著的差异。纤维长、长宽比和木材密度具有较高的重复力,较大的遗传变异系数和遗传增益,三性状同性状3—4年与5—6年之间的相关达显著或极显著水平。简单相关、典型相关、通径分析均表明木材密度与纤维性状、生长性状是独立的。通径分析表明纤维长、树高、胸径对材积有较大的直接作用,纤维长宽比、纤维壁厚对材积的直接作用为负。纤维性状与生长性状两组性状之间由于纤维定与材积、长宽比与树高、壁厚与年轮竞之间的相关而达显著相关。

The inheritances and correlations between growth characters and wood quality characters were studied with the data of 25 Popuar clones, which had been growing for 7 years.The significent differences among these clones were found in fiber length,fiber width,ratio of length to width,wood specific gravity,tree height and DBH.They were moderately or intensively inherited in 6 characters of growth and wood properties.The broad heritabilities were calculated by fiber length, fiber width,ratio of length to width...

The inheritances and correlations between growth characters and wood quality characters were studied with the data of 25 Popuar clones, which had been growing for 7 years.The significent differences among these clones were found in fiber length,fiber width,ratio of length to width,wood specific gravity,tree height and DBH.They were moderately or intensively inherited in 6 characters of growth and wood properties.The broad heritabilities were calculated by fiber length, fiber width,ratio of length to width and wood specific gravity, tree height and DBH, which were 81.9%,73.3%,70.52%,64.3%, 68.8%,70.54% respectiviy.High genetic positive correlations were found between tree height and DBH,between fiber length and ratio of length to wodth, between wood specific gravity and DBH.The effectiveness of different selecation methods in descent order were index selection>direct selection>indirect selection.The selection index were suitable in this experiment,which included tree height, DBH, wood specificgravity and fiber length.4supper.clones were selected by index selection method,which were good in both growth and wood properties.

以7年生25个杨树无性系为材料研究了生长和材质性状的遗传变异及性状之间的相关.6个性状纤维长、纤维宽、长宽比、木材密度、树高、胸径在无性系间均存在极显著的差异。生长和材质性状受中等更强度的遗传控制.6个性状的重复力分别为81.9%,73.3%,70.52%。64.3%.68.8%,70.54%.胸径和树高之间、纤维长度与纤维长宽比、胸径之间、木材密度与胸径之间都呈现出较高的遗传正相关.宜接选择效果优于间接选择,指数选择优于直接选择。由4性状树高、胸径、纤维长度与基本密度配合的选择指数对本实验群体比较合适。利用选择指数评选出4个生长和材质兼优的优良无性系。

 
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