A comparative study on quantitative anatomical characteristics of compression, lateral, and opposite woods in Agathis loranthifolia and Pinus merkusii

IF 1.3 4区农林科学 Q2 MATERIALS SCIENCE, PAPER & WOOD

Bioresources Pub Date : 2023-12-13 DOI:10.15376/biores.19.1.925-943

B. Purusatama, Suk Woo Kim, Nam Hun Kim

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Abstract

Quantitative anatomical characteristics and their radial variation in compression (COW), lateral (LAW), and opposite (OPW) woods of Agathis loranthifolia and Pinus merkusii stem woods growing in Indonesia were observed and compared to understand wood quality. The length, diameter, wall thickness, and lumen diameter of tracheids and ray height and numbers were observed using optical microscopy. In both species, COW had the shortest tracheid length, smallest tracheid and lumen diameter, thickest cell wall, and highest ray numbers among the parts, while LAW and OPW showed comparable or variable values in quantitative characteristics. In A. loranthifolia, COW had the highest ray height, whereas, in P. merkusii, it had the lowest uniseriate and fusiform ray heights. No significant difference was observed in ray numbers and heights between LAW and OPW. In both species, the tracheid length and lumen-to-diameter ratio in COW, LAW, and OPW tended to increase from near the pith to near the bark while the wall-to-diameter ratio decreased. The ray heights of all parts increased with increasing distance from the pith, whereas the ray number decreased.

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罗汉松和欧洲赤松压缩木、侧向木和对生木定量解剖特征比较研究

观察并比较了生长在印度尼西亚的 Agathis loranthifolia 和 Pinus merkusii 茎木的压缩（COW）、侧向（LAW）和对生（OPW）解剖学定量特征及其径向变化，以了解木材质量。使用光学显微镜观察了气管的长度、直径、壁厚和管腔直径以及射线的高度和数量。在这两个物种中，COW的管胞长度最短，管胞和管腔直径最小，细胞壁最厚，射线数量最多，而LAW和OPW的数量特征值相当或不等。在 A. loranthifolia 中，COW 的射线高度最高，而在 P. merkusii 中，COW 的单列射线和纺锤形射线高度最低。LAW 和 OPW 的射线数量和高度没有明显差异。在这两个物种中，COW、LAW 和 OPW 的气管长度和管腔直径比从髓部附近到树皮附近呈上升趋势，而管壁直径比则下降。所有部分的射线高度都随着与髓部距离的增加而增加，而射线数量则有所减少。

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来源期刊

Bioresources 工程技术-材料科学：纸与木材

CiteScore

2.90

自引率

13.30%

发文量

397

审稿时长

2.3 months

期刊介绍： The purpose of BioResources is to promote scientific discourse and to foster scientific developments related to sustainable manufacture involving lignocellulosic or woody biomass resources, including wood and agricultural residues. BioResources will focus on advances in science and technology. Emphasis will be placed on bioproducts, bioenergy, papermaking technology, wood products, new manufacturing materials, composite structures, and chemicals derived from lignocellulosic biomass.