Prediction of radial and tangential shrinkages by near-infrared spectroscopy : an example for Tectona grandis from Togo and for Liquidambar styraciflua from Madagascar

Chaix Gilles, Kokutse Adzo Dzifa, Ratovomboahangy Bruno, Guibal Daniel, Randrianjafy Honoré, Rakotondraoelina Hery, Brancheriau Loïc, Rakotovololonalimanana Herizo, Gherardi Hein Paulo Ricardo, Ramananantoandro Tahiana. 2010. Prediction of radial and tangential shrinkages by near-infrared spectroscopy : an example for Tectona grandis from Togo and for Liquidambar styraciflua from Madagascar. Revista Cerne, 16 : 66-73.

Titre espagnol : Predição da retratibilidade radial e tangenical por espectroscopia no infravermelho proximo : un exemplo de Tectona grandis do Togo e de Liquidambar styraciflua de Madagascar

Quartile : Q4, Sujet : FORESTRY

Résumé : Dimensional stability is one of the most important properties of wood used as timber. However, it is very time-consuming to measure this trait. Near-infrared spectroscopy is a tool adapted for prediction of many properties of wood, as chemical contents, basic density, and the time needed for the analysis is highly reduced. The issue here is to check the effectiveness of NIRS tool to build models and to predict the radial and tangential shrinkages of Teak (Togo) and Liquidambar (Madagascar) wood both from plantations. It was possible to predict the dimensional stability by means of NIR spectroscopy: For Teak, the transversal cross-section spectra yielded better NIRS-based models while for Liquidambar, the tangential surface gave the best statistics model. For the two species, the prediction models for tangential shrinkage showed similar results in term of efficiency. After independent validation or cross-validation, respectively for Teak, and for Liquidambar wood, we assume that NIRS can be used to predict radial and tangential shrinkages for screening.

Mots-clés Agrovoc : Tectona grandis, Liquidambar styraciflua, bois, propriété technologique, propriété physicochimique, retrait, spectroscopie infrarouge, méthode statistique, modèle mathématique

Mots-clés géographiques Agrovoc : Togo, Madagascar

Classification Agris : K50 - Technologie des produits forestiers
U30 - Méthodes de recherche
U10 - Informatique, mathématiques et statistiques

Champ stratégique Cirad : Hors axes (2005-2013)

Auteurs et affiliations

• Chaix Gilles, CIRAD-BIOS-UPR Génétique forestière (FRA) ORCID: 0000-0003-2015-0551
• Kokutse Adzo Dzifa, Université de Lomé (TGO)
• Ratovomboahangy Bruno, Université d'Antananarivo (MDG)
• Guibal Daniel, CIRAD-PERSYST-UPR Bois tropicaux (FRA)
• Randrianjafy Honoré, CENDRADERU (MDG)
• Rakotondraoelina Hery, CENDRADERU (MDG)
• Brancheriau Loïc, CIRAD-PERSYST-UPR Bois tropicaux (FRA) ORCID: 0000-0002-9580-7696
• Rakotovololonalimanana Herizo, Université d'Antananarivo (MDG)
• Gherardi Hein Paulo Ricardo, CIRAD-PERSYST-UPR Bois tropicaux (FRA)
• Ramananantoandro Tahiana, Université d'Antananarivo (MDG)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/556349/)

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