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Effect of Initial Planting Density on the Moisture Content and Chemical Composition of the Triploid Chinese White Poplar (Populus× tomentosa Carrière) Plantation

Forests, 2022-09, Vol.13 (9), p.1494 [Peer Reviewed Journal]

COPYRIGHT 2022 MDPI AG ;2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;ISSN: 1999-4907 ;EISSN: 1999-4907 ;DOI: 10.3390/f13091494

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  • Title:
    Effect of Initial Planting Density on the Moisture Content and Chemical Composition of the Triploid Chinese White Poplar (Populus× tomentosa Carrière) Plantation
  • Author: Sang, Yaru ; Kang, Xiangyang ; Zhang, Pingdong
  • Subjects: Benzene ; Cellulose ; Chemical composition ; Cloning ; Diploids ; Environmental aspects ; Ethanol ; Experiments ; Hardwoods ; Hydrocarbons ; Lignin ; Management ; Methods ; Moisture content ; Moisture effects ; phenotypic correlations ; Phenotypic variations ; Physiological aspects ; Plant spacing ; Plantations ; Planting ; Planting density ; Poplar ; Populus tomentosa ; Pulp ; Pulp & paper industry ; Pulping ; Timber ; Timber industry ; Tree farms ; Trees ; triploid hybrid clones ; Water content ; Wood ; wood properties
  • Is Part Of: Forests, 2022-09, Vol.13 (9), p.1494
  • Description: The triploid Chinese white poplar (Populus × tomentosa Carrière) features desirable growth traits and wood properties, making it the preferred species in the pulp and paper industries and the sawn timber industry. In this study, we characterized the effects of initial planting densities on the moisture content (MC) and four chemical components (benzene-alcohol (BA), holocellulose (HC), alpha-cellulose (AC), and klason lignin (KL)) of the triploid Chinese white poplar. In this study, 11-year-old Chinese white poplars with three triploid clones (S86, B331, and B301) and one diploid clone (1316) that were planted using seven levels of planting densities (2490, 1665, 1110, 832, 624, 499 and 416 trees/hm2) were examined in the Huabei Great Plain in China. The MC was observed to initially decrease and then subsequently increase with decreasing planting density, and exhibited significant differences under different initial planting densities (0.001 < p < 0.01). In terms of the chemical composition, the BA content of the triploid hybrid clones presented with much higher phenotypic variation (CVp = 17.11%–32.45%) at each planting density compared to either the MC (CVp = 3.73%–11.21%) or the other three chemical composition variations (CVp = 1.16%–11.46%). Substantial differences were observed in the chemical composition of the triploid hybrid clones (p < 0.05), while no differences were found in the chemical composition within the initial planting density categories. The correlation between the chemical composition of wood (BA, HC, AC, and KL) and growth traits was generally weak. These results demonstrate that compared with the MC, the chemical composition of the triploid Chinese white poplar was primarily controlled by its own genetic background and was almost unaffected by the initial planting density. Thus, it is important to select a suitable clone and initial planting density to ensure the full growth of these trees and to improve the quality of pulping in the construction of pulp timber forests.
  • Publisher: Basel: MDPI AG
  • Language: English
  • Identifier: ISSN: 1999-4907
    EISSN: 1999-4907
    DOI: 10.3390/f13091494
  • Source: DOAJ Directory of Open Access Journals
    AUTh Library subscriptions: ProQuest Central
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