Decay resistance against <Emphasis Type="Italic">Coriolus versicolor</Emphasis> in Sessile oak (<Emphasis Type="Italic"> Quercus petraea </Emphasis>Liebl.): analysis of the between-tree variability and correlations with extractives,tree growth and other basic wood properties |
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Authors: | Email author" target="_blank">E?GuilleyEmail author J?P?Charpentier N?Ayadi G?Snakkers G?Nepveu B?Charrier |
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Institution: | (1) CIG, Université de Genève, 59 Route de Mon-Idée, CH-1226 Thônex Genève, Suisse;(2) Unité d Amélioration, Génétique et Physiologie Forestières, Avenue de la Pomme de Pin, BP 20619, Centre INRA d Orléans, F-45166 Olivet, France;(3) Ecole Supérieure de Bois, Atlanpole BP 10605, Rue Christian Pauc, F-44306 Nantes, France;(4) Bureau National Interprofessionnel du Cognac, 23 allée Champs de Mars, F-16100 Cognac, France;(5) Laboratoire d Etude des Ressources Forêt-Bois (LERFOB), Unité Mixte de Recherches sur la Qualité des Bois, Centre INRA de Nancy, F-54280 , Champenoux, France;(6) Sylvadour, Université de Pau et des Pays de l Adour, BP201-371, rue du ruisseau, 40004 Mont de Marsan, France |
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Abstract: | Abstract Weight loss due to fungus Coriolus versicolor has been measured on 614 samples according to the NF EN 113 norm. Up to eight samples were cut at breast height (two opposite radii×four radial positions in heartwood) from 82 mature sessile oaks ( Quercus petraea Liebl.) originating from contrasting regions, silvicultural schedules and site qualities in France. The following points are addressed in the paper: (i) contribution to the total variability for weight loss of the effects tree , position in the tree , as well as their interaction; (ii) percentage of wood samples and trees in each of the five classes of natural durability defined by the norm NF EN 350–2; (iii) test of the effects of region, silvicultural schedule and site quality on weight loss and evaluating their contribution to the total variation; and (iv) correlations at tree level between weight loss and several traits related to tree growth and basic wood properties (density, swelling, grain angle, multiseriate wood rays characteristics, extractives content). The results are discussed with a view to aid the forest manager as well as the log/wood user to take advantage of the high level of between-tree variability observed as natural durability against C. versicolor. |
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