Abstract
The heartwood of plantation-grown coast redwood trees from three forests in the North Island, New Zealand, was evaluated using in vitro decay tests with fungal cultures to determine variation in natural durability and its prediction using near infrared (NIR) spectroscopy. The NIR spectra were acquired from the solid wood surface, prior to decay testing, using a fibre-optic probe attached to a Bruker MPA FT-NIR spectrometer and an imaging spectrograph coupled to a NIR line camera. The partial least squares (PLS) regression models of mass loss with fungal decay testing, based on spectra collected with the FT-NIR spectrometer, had better predictive performance than the NIR line camera, as evidenced by fewer latent variables and slightly better R2. The ratios of prediction to deviation ( RPD) were 1.3 to 1.4 for both the spectrometer and camera system, which suggests the PLS regression models could be used to segregate the heartwood of coast redwood for high- and low values of natural durability.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
