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马尾松家系
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  masson pine family
     On Genetic Variations of Wood Basic Density in Masson Pine Family
     马尾松家系木材基本密度遗传变异的研究
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  “马尾松家系”译为未确定词的双语例句
     The Application of the Grey System Theory in Comprehensively Selecting Pinus massoniana Family
     灰色系统理论在综合评选马尾松家系中的应用
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     In this paper, the 6 injury-respond indexes of 28 masson pine strains due to Hemiberlesia pitysophila Takagi were analyzed by use of the principle component analysis method and the cluster analysis method.
     对受松突圆蚧危害的28个马尾松家系相关的6个指标进行主成分分析和聚类分析,探讨了28个马尾松家系抗松突圆蚧危害的特点。
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     The Cluster analysis by software NTSYS2.10 showed that all the mason pine families could be divided into three types: the southern of guangdong province type,the northeast of guangdong province type and the middle of guangdong province type.
     并应用NTSYS2.10统计软件,通过形态学性状UPGMA聚类可将10个马尾松家系分成三类:广东省南部类型、粤东北类型和广东省中部类型。
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     Study on the growth stability of Pinus massoniana
     马尾松家系生长稳定性研究
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     4.The analysis of morphological markers and RAPD markers showed that the geneticdiversity within families was larger than the genetic diversity among families in clones of P. massoniona in seed orchard.
     4.通过形态学标记和RAPD标记研究发现,建园无性系马尾松家系内的遗传变异均大于家系间的遗传变异;
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     Study on the growth stability of Pinus massoniana
     马尾松家系生长稳定性研究
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     Studies on photosynthesis characters of different masson pine families
     马尾松不同家系光合特性的研究
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     V. C higher than families G.
     V.C比家系G.
短句来源
     Pedigree analysis suggested an X-linked dominant inheritance in this pedigree.
     家系分析:
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     A NEW VARIETY OF PINUS MASSONIANA LAMB.
     马尾松一新变种
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This paper deals with the genetic variation analysis and productivity evaluation on the plus tree open pollinated families in a series of progeny test plantations of masson pine located in Zhejiang Province.The significant variations were found among the open pollinated families for tree height, DBH and stem volume at age 5~10 which were under moderate or high genetic control.The observation results for ten years in succession showed that...

This paper deals with the genetic variation analysis and productivity evaluation on the plus tree open pollinated families in a series of progeny test plantations of masson pine located in Zhejiang Province.The significant variations were found among the open pollinated families for tree height, DBH and stem volume at age 5~10 which were under moderate or high genetic control.The observation results for ten years in succession showed that the heritabilities for three growth traits were stabler and their family genetic variation coefficiences decreased with age.Age age correlation analysis indicated that the tree height and stem volume at age 10 couldn′t be predicted by the tree height under age 5 ,and the first selection age for growth traits at family level would be above age 5.In the paper,tree height was considered as a main criterion of family productivity evaluation.Among 405 families tested,167,96 and 32 families,whose tree heights were more 10%,15% and 20% than the check respectively,were selected to provide the scientific basis for roguing in seed orchard and parent selecting in controlled pollination etc.

对浙江省5批7片马尾松优树自由授粉家系子代测定林的研究表明,5~10年生时其高、径生长性状具有丰富的家系遗传变异,受中度以上的遗传控制。根据连续10a的测定结果,高径和材积生长的遗传力随树龄的增加变化较小,但遗传变异系数则随树龄的增加而逐渐减小。年度间相关分析表明,利用5年生以下的树高预估10年生时的树高和树干材积,精度很低,损失的信息很大,马尾松家系生长的初选年龄应在5年生以上。利用树高(为主)作为标准对所有参试家系的生产力进行评价,从405个家系中选出167个生长大于对照10%的优良家系,可作为种子园疏伐时留优的依据;大于对照15%的96个家系,其亲本无性系可选配为控制授粉的杂交亲本;大于对照20%的生产力最高的32个优良家系,可作为重建一代种子园的亲本材料,或用于建立采穗圃,通过规模无性繁殖最大限度地提高良种效益。

Early selection for growth traits was studied,based on data from 13 year old plus tree progeny plantation of Masson Pine (Pinus Massoniana Lamb ),the variances and heritabilities of different age families were analyzed Estimates of genetic,phenotypic and environmental correlations and coefficients of genetic correlation among ages were obtained Results showed that there was abundant variance among families which was mainly controlled by genetic factor The best beginning age for the family selection was...

Early selection for growth traits was studied,based on data from 13 year old plus tree progeny plantation of Masson Pine (Pinus Massoniana Lamb ),the variances and heritabilities of different age families were analyzed Estimates of genetic,phenotypic and environmental correlations and coefficients of genetic correlation among ages were obtained Results showed that there was abundant variance among families which was mainly controlled by genetic factor The best beginning age for the family selection was age of 8~9

对13 年生马尾松优树子代测定林历年生长性状的观测数据, 分析了不同年龄的家系变异和家系遗传力的变化, 研究了年龄间的遗传相关、表型相关和环境相关, 并估算了相关遗传力.结果表明, 马尾松家系间存在着丰富的变异, 并主要由遗传因素制约; 马尾松家系选择从8~9年生开始是有效的

Wood basic density in masson pine families and individuals were studied based on data of 73 families and 656 individuals from 9 year old progeny plantation of masson pine (Pinus massoniana Lamb.).The results showed that there were small variation in wood basic density at family level and big variation at individual level .The genetic correlations between wood basic density and DBH ,stem volume and branch circle were adverse and very significant, while wood basic density had strong genetic correlation with...

Wood basic density in masson pine families and individuals were studied based on data of 73 families and 656 individuals from 9 year old progeny plantation of masson pine (Pinus massoniana Lamb.).The results showed that there were small variation in wood basic density at family level and big variation at individual level .The genetic correlations between wood basic density and DBH ,stem volume and branch circle were adverse and very significant, while wood basic density had strong genetic correlation with stem straightness. It was possible to select good masson pine families and individuals with high wood basic density and high yielding.

对福建三明市中村采育场 9a生马尾松家系测定林中 73个家系、65 6个单株木材基本密度测定分析结果表明 ,木材基本密度在家系水平上变异较小 ,而在个体水平上变异很大 ;木材基本密度与胸径、材积、圆满度呈极显著的负遗传相关 ,与轮盘数呈显著的负遗传相关 ,与通直度呈极显著的正遗传相关 ;选择木材基本密度较大且生长迅速的马尾松家系和个体是有可能的

 
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