You are here: Home :: Area NEM :: Agricultural science

Laurence R. Schimleck, Reinhard Stürzenbecher, Christian Mora, P. David Jones, Richard F. Daniels

Comparison of Pinus taeda L. wood property calibrations based on NIR spectra from the radial-longitudinal and radial-transverse faces of wooden strips

Keywords: air-dry density, Microfibril angle, near-infrared spectroscopy, Pinus taeda, SilviScan, stiffness, tracheid morphological characteristics

When a radial strip is cut from an increment core it can potentially be cut with two orientations: parallel to longitudinal tracheids, i.e., a radial-longitudinal (RL) strip (the orientation of SilviScan samples), or at an orientation of 90° to the tracheids, i.e., a radial-transverse (RT) strip. Both strips could be used for near-infrared (NIR) analysis, but it is unknown how calibrations based on RT-face NIR spectra compare with those based on RL-face NIR spectra. A total of 20 Pinus taeda L. (loblolly pine) RL strips were characterized in terms of air-dry density, microfibril angle (MFA), stiffness and several tracheid morphological characteristics. NIR spectra were collected in 10-mm increments from the RL and RT faces of matching strips and used to develop calibrations for each property. In general, RL-face NIR spectra gave calibrations that provided stronger relationships. Differences between the two sets of calibrations were small, indicating that either face could be used for NIR analysis.

Holzforschung, Walter de Gruyter

Print ISSN: 0018-3830
Volume: 59, 02/2005
Pages: 214 - 218

Show full article (external site)

Show all available items of this journal

 

Area NEM