期刊
BIORESOURCES
卷 16, 期 3, 页码 4905-4923出版社
NORTH CAROLINA STATE UNIV DEPT WOOD & PAPER SCI
DOI: 10.15376/biores.16.3.4905-4923
关键词
Populus deltoides; Hybrids; Chemical composition; Density; Fibre morphology; Radial variation
资金
- National Key Research and Development Program of China [2017YFD0600201]
- International Science and Technology Cooperation Program of Anhui Province [1704e1002226]
The wood properties of Populus deltoides and its hybrids exhibited significant differences, suggesting they could be used for different purposes. Based on the radial variation rule, a rotation cutting period of 7 or 8 years can be selected.
The radial variation and the genetic variation of wood properties between the parents and offspring of Populus deltoides were studied in this work. The chemical composition, density, and anatomical characteristics of Populus deltoides cl. 'Danhong' and its offspring exhibited the phenomenon of transgressive segregation. The chemical compositions of the parents and offspring were decreased in several attributes (benzene alcohol extract, hemicelluloses, lignin) with the increase of the cambial age. Moreover, the fibre length, fibre width, ratio of fibre length to width, and wall thickness to lumen ratio of parents and offspring were increased with cambial age. In addition, the densities of parents and offspring were increased with the increase of cambial age. There were significant differences in wood properties among Populus deltoides and its hybrids. These results indicated that Populus deltoides cl. 'Danhong' could be considered as pulp material and Populus deltoides cl. 'Nanyang' as building material. According to the radial variation rule of each material character, the rotation cutting period can be selected as years 7 or 8.
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