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Article

Selection of Eucalyptus camaldulensis Families for Sustainable Pulpwood Production by Means of Anatomical Characteristics

1
School of Agriculture, Utsunomiya University, Utsunomiya 321-8505, Japan
2
Faculty of Agricultural Production and Management, Shizuoka Professional University of Agriculture, Iwata 438-0803, Japan
3
Faculty of Forestry, Kasetsart University, Bangkok 10900, Thailand
*
Author to whom correspondence should be addressed.
Forests 2021, 12(1), 31; https://doi.org/10.3390/f12010031
Received: 4 December 2020 / Revised: 22 December 2020 / Accepted: 24 December 2020 / Published: 29 December 2020
(This article belongs to the Special Issue Forest Sustainability: Wood Yield and Biomass Utilization)
Sustainable pulpwood production from fast-growing tree plantations is needed for pulp and paper industries. To increase the pulpwood production efficiency, the anatomical characteristics and derived-wood properties of 75 trees from 15 half-sib families of Eucalyptus camaldulensis Dehnh. planted in Thailand were investigated, and then the family was classified by suitability of wood as raw material for pulp and paper products using principal component analysis and clustering. The mean values of vessel diameter, vessel frequency, fibre diameter, fibre lumen diameter, and fibre wall thickness at 2 cm from the cambium were 128 µm, 16 no./mm2, 11.1 µm, 7.1 µm, and 1.88 µm, respectively. In addition, the Runkel ratio, Luce’s shape factor, flexibility coefficient, slenderness ratio, solids factor, and wall coverage ratio (i.e., derived-wood properties) were 0.53, 0.42, 0.64, 85.3, 68 × 103 µm3, and 0.34, respectively. Significant differences in fibre diameter, fibre lumen diameter, and Runkel ratio were found among families. Although significant differences among families were not found for other anatomical characteristics and derived-wood properties, the p-values obtained by an analysis of variance test ranged from 0.050 to 0.088. Based on the results of a principal component analysis and cluster analysis, 15 families were classified into four clusters with different expected pulp and paper characteristics. The suitability of wood from E. camaldulensis half-sib families for pulp and paper can be evaluated by principal component analysis using anatomical characteristics and physical properties as variables. Based on the results, desirable pulp and paper quality may be obtained through the selection of families from this species. View Full-Text
Keywords: vessel morphology; fibre morphology; Runkel ratio; pulp and paper quality vessel morphology; fibre morphology; Runkel ratio; pulp and paper quality
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MDPI and ACS Style

Nezu, I.; Ishiguri, F.; Aiso, H.; Diloksumpun, S.; Ohshima, J.; Iizuka, K.; Yokota, S. Selection of Eucalyptus camaldulensis Families for Sustainable Pulpwood Production by Means of Anatomical Characteristics. Forests 2021, 12, 31. https://doi.org/10.3390/f12010031

AMA Style

Nezu I, Ishiguri F, Aiso H, Diloksumpun S, Ohshima J, Iizuka K, Yokota S. Selection of Eucalyptus camaldulensis Families for Sustainable Pulpwood Production by Means of Anatomical Characteristics. Forests. 2021; 12(1):31. https://doi.org/10.3390/f12010031

Chicago/Turabian Style

Nezu, Ikumi, Futoshi Ishiguri, Haruna Aiso, Sapit Diloksumpun, Jyunichi Ohshima, Kazuya Iizuka, and Shinso Yokota. 2021. "Selection of Eucalyptus camaldulensis Families for Sustainable Pulpwood Production by Means of Anatomical Characteristics" Forests 12, no. 1: 31. https://doi.org/10.3390/f12010031

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