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The changes of extractive contents of young Swietenia mahagoni (L.) Jacq trees during heartwood formation Cover

The changes of extractive contents of young Swietenia mahagoni (L.) Jacq trees during heartwood formation

Open Access
|Jun 2022

Figures & Tables

Figure 1

Wood sampling scheme for extractive analysis.
Wood sampling scheme for extractive analysis.

Figure 2

Total extractive content of S. mahagoni based on oven-dry wood mean (a) and extractive weight (b).
Total extractive content of S. mahagoni based on oven-dry wood mean (a) and extractive weight (b).

Figure 3

Total phenolic content based on mg GAE/g dried extract from S. mahagoni (means of five trees) on the interaction of tree age and axial position with error bar as standard deviation. The same letters on the histograms implied no significant differences (p <0.05 by Duncan’s test).
Total phenolic content based on mg GAE/g dried extract from S. mahagoni (means of five trees) on the interaction of tree age and axial position with error bar as standard deviation. The same letters on the histograms implied no significant differences (p <0.05 by Duncan’s test).

Figure 4

Total soluble polysaccharide content based on mg GE/g dried extract from S. mahagoni (means of five trees) on the interaction of tree age and axial position with error bar as standard deviation. The same letters on the histograms implied no significant differences (p < 0.05 by Duncan’s test).
Total soluble polysaccharide content based on mg GE/g dried extract from S. mahagoni (means of five trees) on the interaction of tree age and axial position with error bar as standard deviation. The same letters on the histograms implied no significant differences (p < 0.05 by Duncan’s test).

Description of tree samples from young S_ mahagoni trees_

NoAge (year)Average of DBH (cm)Average of total merchantable height (m)
111.08 ± 0.28 a0.54 ± 0.10
221.99 ± 0.321.72 ± 0.16
334.46 ± 0.104.25 ± 0.10
446.13 ± 1.124.80 ± 0.77
558.05 ± 1.176.60 ± 1.20

The interaction of tree age with an axial position on the extractive content of S_ mahagoni wood_

Solvent1 year2 years3 years

BottomTopBottomTopBottomTop

SapwoodSapwoodSapwoodSapwoodSapwoodSapwood
n-Hexane0.71 ± 0.14 a1.09 ± 0.24 bc1.26 ± 0.08 bc1.28 ± 0.20 bcd1.41 ± 0.41 cd0.96 ± 0.13 ab
Methanol4.30 ± 0.85 bcde7.48 ± 2.34 f4.48 ± 0.48 abcde4.36 ± 1.04 cde3.72 ± 1.09 abcd2.57 ± 0.98 abc
Hot water2.09 ± 0.70 bc2.09 ± 0.50 bc3.57 ± 1.19 e2.22 ± 0.36 bc5.21 ± 0.65 f1.01 ± 0.20 a

Total7.10 ± 1.23 bc10.7 ± 2.27 de9.31 ± 1.25 cde7.86 ± 0.69 cd10.3 ± 1.59 de4.54 ± 0.95 ab

Two-way ANOVA analysis for extractive, TPC, and TSP contents of S_ mahagoni wood_

Source of variationdfParameters

n-HexaneMethanolHot waterTotal ExtractiveTPCTSP
Tree age (T)10****************
Axial (A)1***n.s************
T × A10****************
Error46
Total67
DOI: https://doi.org/10.2478/fsmu-2021-0012 | Journal eISSN: 1736-8723 | Journal ISSN: 1406-9954
Language: English
Page range: 64 - 79
Submitted on: Jul 16, 2021
Accepted on: Dec 29, 2021
Published on: Jun 4, 2022
Published by: Estonian University of Life Sciences
In partnership with: Paradigm Publishing Services
Publication frequency: 2 times per year

© 2022 Rizki Arisandi, Sri Nugroho Marsoem, Ganis Lukmandaru, Johanes Pramana Gentur Sutapa, published by Estonian University of Life Sciences
This work is licensed under the Creative Commons Attribution 4.0 License.