|
二维码（扫一下试试看！） |
| Radial Variation Patterns of Chemical Components and Developmental Stages Identification of Pinus Elliottii Based on FT-IR Characterization |
| Received:July 22, 2026 Revised:August 26, 2026 |
| DOI：10.11981/j.issn.1000-6842.2026.03.251 |
| Key Words:Pinus elliottii;infrared spectroscopy;prior-constrained Gaussian mixture model;juvenile wood;mature wood |
| Fund Project:中央公益性科研院所基金基础研究项目CAFYBB2024MA006科技创新2030-重大项目课题2023ZD0405905中央公益性科研院所基金基础研究项目（CAFYBB2024MA006）；科技创新2030-重大项目课题（2023ZD0405905）。 |
| Author Name | Affiliation | Postcode | | Ma Lingyu* | 1Research Institute of Wood Industry， Chinese Academy of Forestry， Beijing， 100091 | 100091 | | Wu Ting | 2Institute of Chemical Industry of Forest Products， Chinese Academy of Forestry， Nanjing， Jiangsu Province， 210042 | 210042 | | Jiao Lichao | 1Research Institute of Wood Industry， Chinese Academy of Forestry， Beijing， 100091 | 100091 | | Liang Long* | 2Institute of Chemical Industry of Forest Products， Chinese Academy of Forestry， Nanjing， Jiangsu Province， 210042 | 210042 |
|
| Hits: 52 |
| Download times: 17 |
| Abstract: |
| This study selected three 20-year-old Pinus elliottii half-sib families （A04， A05， and EB2） and used samples from different growth rings to investigate the radial variation patterns of the chemical components of Pinus elliottii. Furthermore， a prior-constrained Gaussian mixture model was employed to define the developmental stages of juvenile and mature wood. The results indicated that A05 had a relatively high cellulose content and a relatively low lignin content， suggesting superior pulp-making potential Fourier transform infrared spectroscopy （FT-IR） analysis revealed that the peak height ratio of the characteristic peaks at 1590/1424 was a sensitive parameter for distinguishing between juvenile and mature Pinus elliottii. The priori constrained Gaussian mixture model analysis revealed that the maturation processes of the three half-sib families were inconsistent. Applying the “maximum boundary” principle， the differentiation stages between juvenile and mature wood were determined as follows： the first 8 growth rings represented juvenile wood， growth rings of 8th~13th represented transitional wood， and growth rings after the 13th represented mature wood. Furthermore， the posterior probability for most growth rings was >0.8， indicating that the classification model used in this study possessed a certain degree of reliability. |
| View Full Text View/Add Comment Download reader HTML |
