Abstract
The objective of this article is to investigate the variability in chemical composition, fiber length, and basic wood density (specific gravity) amongst clones. Wood samples were taken from an experimental plantation in a dense 2.5 × 2.5 m wood, i.e., 1600 trees/ha. The plantation consisted of 127 clones which were selected in the nursery from 11 eastern cottonwood (P. deltoides Bartr., section Aigeiros) half-sib progenies. The physical, structural, and chemical characteristics of 40 poplar clones aged four years were investigated in three model trees from each clone. There are significant differences between the contents of the individual components of the wood chemical composition. The values of the heritability factor are high and they are similar for lignin (0.936), holocellulose (0.937) and for the extractives content (0.999). The mean value of the basic wood density is 380 kg/m3 (coefficient of heritability is 0.938), and the mean value of the fiber length is 863 μm (coefficient of heritability 0.611).
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Klasnja, B., Kopitovic, S. & Orlovic, S. Variability of some wood properties of eastern cottonwood (Populus deltoides Bartr.) clones. Wood Sci Technol 37, 331–337 (2003). https://doi.org/10.1007/s00226-003-0179-3
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DOI: https://doi.org/10.1007/s00226-003-0179-3