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Genetic variation in wood density and correlations with tree growth in Prosopis africana from Burkina Faso and Niger / Carmen Sotelo Montes in Annals of Forest Science, Vol 66 n° 7 (October - November 2009)  

Public [article]  inAnnals of Forest Science > Vol 66 n° 7 (October - November 2009) . - n° 713 Titre : Genetic variation in wood density and correlations with tree growth in Prosopis africana from Burkina Faso and Niger Titre original : Variation génétique de la densité du bois et corrélations avec la croissance de l'arbre chez Prosopis africana provenant du Burkina Faso et du Niger Type de document : Article/Communication Auteurs : Carmen Sotelo Montes, Auteur ; John C. Weber, Auteur Année de publication : 2009 Article en page(s) : n° 713 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Termes descripteurs IGN] adaptation (biologie) [Termes descripteurs IGN] Burkina Faso [Termes descripteurs IGN] conservation des ressources forestières [Termes descripteurs IGN] croissance végétale [Termes descripteurs IGN] densité du bois [Termes descripteurs IGN] génétique forestière [Termes descripteurs IGN] Niger [Termes descripteurs IGN] Prosopis africana [Termes descripteurs IGN] Sahel [Vedettes matières IGN] Sylviculture Résumé : (Auteur) Variation in wood basic density and its correlation with tree growth were investigated at 13 years in a provenance/progeny test of Prosopis africana in Niger. The test included progeny from 256 trees sampled from 24 provenances in the Sahelian ecozone of Burkina Faso and Niger. Variation in wood density was significant due to provenances and families within provenances. Individual tree heritability was higher for wood density than for growth traits. Provenance means for wood density increased from the more humid to the drier parts of the sample region. Phenotypic correlations indicated that larger trees tended to have denser wood. • Clines suggest that natural populations of P. africana from the drier parts of the sample region have the genetic capacity to produce denser wood, compared with populations from the more humid parts of the region. Correlations and heritability estimates suggest that selection of faster-growing trees may produce a small gain in wood volume but little (if any) gain in density in the subsequent generation. Multi-location provenance/tests are needed to confirm this tentative conclusion. Numéro de notice : A2009-634 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1051/forest/2009060 date de publication en ligne : 02/10/2009 En ligne : https://www.afs-journal.org/articles/forest/full_html/2009/07/f08355/f08355.html Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=72837 [article]

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Code-barres	Cote	Support	Localisation	Section	Disponibilité
IFN-001-P000668	PER	Revue	Nogent-sur-Vernisson	Salle périodiques	Exclu du prêt