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Variability of wood properties in two wild cherry clonal trials

Abstract : There has been an increase in wild cherry cultivation over recent decades, revealing a need for improvements in planting material to be used for the production of high quality timber. To date, trial tests have been carried out mainly on growth and tree architectural traits, while no investigations have focused on wood properties. The present study investigated the variability of the growth traits and the physical and mechanical properties of wild cherry wood, both within the tree, within and among clones and between sites. The aims of the study are to provide useful information on the genetics of wood traits in valuable hardwoods and to discuss how within-tree variation can affect early selection of genotypes. The results suggest that site was the most important source of variation in growth traits and in the proportion of heartwood, although differences among clones were highly significant. The number of sapwood rings was very homogeneous both between sites and among clones. Concerning the wood traits, most variation was detected within the tree, rather than within or among clones or between sites. Within tree variability seems to be mainly due to heartwood/sapwood presence. However, since there is a high correlation between heartwood and sapwood properties, a quite efficient selection made on the basis of sapwood should provide an efficient means of selecting heartwood traits.
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Michela Nocetti, Michele Brunetti, Fulvio Ducci, Manuela Romagnoli, Frédérique Santi. Variability of wood properties in two wild cherry clonal trials. Wood Science and Technology, Springer Verlag, 2010, 44 (4), pp.621-637. ⟨10.1007/s00226-009-0294-x⟩. ⟨hal-02658558⟩



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