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美洲黑杨新无性系干形性状遗传变异初步研究(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
1999年05期
Page:
1-6
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
Research on the Genetic Variation of New Clonal Stem Form Traits in Populus Deltoides
Article ID:
1000-2006(1999)05-0001-06
Author(s):
Pan Huixin Huang Minren Li Huogen Wang Minxiu
Key Laboratory of Forest Genetics and Gene Engineering Nanjing Forestry Unversity Nanjing 210037
Keywords:
Tree stem form Genetic variation Poplar clones
Classification number :
S722
DOI:
10.3969/j.jssn.1000-2006.1999.05.001
Document Code:
A
Abstract:
In this paper it is reported firstly that the tree stem form traits, including tree round degree, crooked degree, crooked degree, coefficient utilization, number of knot and thickness of bark, were investigated to 9 year’s new clones of east cottonwod and genetic variation analysis was carried out. The results show that poplar clonal stem form variation is obviously different among the clones. The broad heritability of the poplar clonal stem form traits were high (h 2=0.438 0~0 775 3) so that these traits are highly controlled by genetic material. The coefficient of genetic variability of the trait crooked degree, number of tree knot and thickness of tree bark were higher than both traits of round degree and coefficient utilization. The coefficient utilization was closely related to both crooded degree and thickness of bark genetically, the lower both crooked degree and thickness of bark value were, the higher the coefficient utilization value was, but hardly to the number of tree knot. Moreover, it was carried out that tree stem forms were valued by index method analysis for each new poplar clones.

References

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Last Update: 1900-01-01