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What are the consequences of growth selection on wood density in the French maritime pine breeding programme?

hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorBOUFFIER, Laurent
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorRAFFIN, Annie
hal.structure.identifierUnité de recherche Amélioration, Génétique et Physiologie Forestières [AGPF]
dc.contributor.authorROZENBERG, Philippe
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorMEREDIEU, Céline
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorKREMER, Antoine
dc.date.issued2009
dc.identifier.issn1614-2942
dc.description.abstractEnVolume and stem straightness were the main selection criteria for the first two generations of the French maritime pine (Pinus pinaster Ait.) breeding programme. In this article, we investigate the consequences of this selection on wood quality. Wood density, as a predictor of wood quality, is studied both in the breeding populations and in commercial varieties. Phenotypic and genetic correlations between wood density and growth traits are investigated in successive breeding populations with three genetic field experiments of respectively 30, 29 and 12 years old. Correlation estimates were either slightly negative or non-significantly different from zero depending on the test considered. Consequently, a low impact of growth selection on wood quality should be expected in improved seed sources. However, we observed a significant wood density decrease in two improved varieties as compared to unimproved seed sources at age 15. In addition to this first effect on wood density, growth improvement is also expected to reduce the rotation age and thus increase the proportion of juvenile wood, which is known as having a lower density than mature wood. This change was studied and quantified using a growth model. Finally, a wood density decrease reaching up to 6% was predicted in the improved varieties compared to unimproved material, when both the observed decrease in wood density and the predicted increase in juvenile wood proportion were taken into account. Implications for the breeding programme were considered.
dc.language.isoen
dc.publisherSpringer Verlag
dc.subjectPINUS PINASTER AIT.
dc.subject.enCORRELATION
dc.subject.enWOOD DENSITY
dc.subject.enGROWTH
dc.subject.enJUVENILE WOOD
dc.subject.enPIN MARITIME
dc.subject.enBOIS MATURE
dc.title.enWhat are the consequences of growth selection on wood density in the French maritime pine breeding programme?
dc.typeArticle de revue
dc.identifier.doi10.1007/s11295-008-0165-x
dc.subject.halSciences du Vivant [q-bio]/Sciences agricoles/Sylviculture, foresterie
bordeaux.journalTree Genetics and Genomes
bordeaux.page11-25
bordeaux.volume5
bordeaux.issue1
bordeaux.peerReviewedoui
hal.identifierhal-02661626
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02661626v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Tree%20Genetics%20and%20Genomes&rft.date=2009&rft.volume=5&rft.issue=1&rft.spage=11-25&rft.epage=11-25&rft.eissn=1614-2942&rft.issn=1614-2942&rft.au=BOUFFIER,%20Laurent&RAFFIN,%20Annie&ROZENBERG,%20Philippe&MEREDIEU,%20C%C3%A9line&KREMER,%20Antoine&rft.genre=article


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