李新国, 段安安, 朱之悌. 毛白杨无性系年龄效应及根萌条幼化效果的初步研究[J]. 西南林业大学学报, 1998, 18(2): 61-67. DOI: 10.11929/j.issn.2095-1914.1998.02.001
引用本文: 李新国, 段安安, 朱之悌. 毛白杨无性系年龄效应及根萌条幼化效果的初步研究[J]. 西南林业大学学报, 1998, 18(2): 61-67. DOI: 10.11929/j.issn.2095-1914.1998.02.001
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Li Xinguo, Duan An'an, Zhu Zhiti. Primary Study on Branch Cyclophsis and Sucker Rejuvenation Effect of Populus tomentosa[J]. Journal of Southwest Forestry University, 1998, 18(2): 61-67. DOI: 10.11929/j.issn.2095-1914.1998.02.001
Citation: Li Xinguo, Duan An'an, Zhu Zhiti. Primary Study on Branch Cyclophsis and Sucker Rejuvenation Effect of Populus tomentosa[J]. Journal of Southwest Forestry University, 1998, 18(2): 61-67. DOI: 10.11929/j.issn.2095-1914.1998.02.001
shu

毛白杨无性系年龄效应及根萌条幼化效果的初步研究

Primary Study on Branch Cyclophsis and Sucker Rejuvenation Effect of Populus tomentosa

    摘要
  • 摘要: 研究了毛白杨优树花枝基因库中的年龄效应以及来源于根萌条的无性系测定林的幼化效果,结果表明:1.毛白杨生长性状的年龄效应较明显,与优树年龄呈线性相关,煤污病、叶部性状等与优树年龄的1~3次多项式回归均不显著,基本上不受年龄效应的影响,树干通直度与优树年龄呈3次多项式回归关系;2.无性系测定林各无性系的生长正常,与原优树的年龄相关不显著,年龄或龄级的方差分量也未达显著性水平,因此根萌条幼化效果良好,且消除了优树年龄间的差异.

     

    Abstract: The cyclophysis in flower branch gene pool of plus tree and the rejuvenated effect of clonal test plantations originated from sucker of P.tomentosa were studied in this paper.The results are shown as follows:(1) the cyclophysis is significant in growth characteristics with linear correlation on the age of plus trees, it has no effect on coal-like disease and characteristics in foliage because of no relation from 1 to 3 polynomial regressions between these characteristics and the age of plus trees, but these have 3 polynomial regressive relation in stem straightness; (2) the growth is nomal in clonal test plantations and has no relation with the originated plus trees, also not significant in variance components of age and age-class, so the sucker shows good rejuvenated effect and eliminates the age difference of plus trees.

     

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