Genetic Variation and Correlations between Growth and Wood Density of Calycophyllum spruceanum at an Early Age in the Peruvian Amazon

Montes, S. M. N. M.; Hernández, Roger E.; Beaulieu, Jean; Weber, John C.

doi:10.1515/sg-2006-0029

Cited by 40 publications

(22 citation statements)

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“…Genetic variation in wood density due to provenances and/or families has also been reported in other tropical hardwood species at relatively young ages (e.g., Arnold et al, 2004;Dvorak et al, 1998;Lauridsen and Kjaer, 2002;Miranda et al, 2001;Santos et al, 2004;Sotelo Montes et al, 2006;Weber and Sotelo Montes, 2008).…”

Section: Variation Clines and Correlations In Wood Densitymentioning

confidence: 71%

“…We assumed partial inbreeding and estimated additive genetic variance as 3σ 2 f , as others have done (e.g., Sotelo Montes et al, 2006). Standard errors were calculated using the formula provided by Becker (1984).…”

Section: Data Collection and Statistical Analysesmentioning

confidence: 99%

“…Density and other wood properties of tropical hardwoods typically have higher heritability than growth traits (e.g., Arnold et al, 2004;Raymond, 2002;Sotelo Montes et al, 2006;2007a;2007b;Wei and Borralho, 1997). Results from this test are consistent with this general trend.…”

Section: Variation Clines and Correlations In Wood Densitymentioning

confidence: 99%

“…Larger trees tend to have denser wood, and studies of other species demonstrate that denser wood tends to be stronger and stiffer but has greater volumetric shrinkage (e.g., Sotelo Montes et al, 2007a;2007b). Greater strength and stiffness are desirable for construction purposes, and wood with less shrinkage is generally preferred in order to minimize waste due to poorly oriented boards.…”

Section: Practical Implications and Future Research Needsmentioning

confidence: 99%

“…Wood density is a key trait because it is often correlated with other commercially important, wood-quality traits (Panshin and de Zeeuw, 1980). In many species with diffuse-porous wood, there is no significant correlation between growth rate and wood density, suggesting that faster-growing trees could be selected without Article published by EDP Sciences affecting wood quality (Zobel and Jett, 1995); but the correlation may be positive in some species and negative in others, and it may also vary among provenances within a species (e.g., Sotelo Montes et al, 2006;Weber and Sotelo Montes, 2008). In addition, wood density and other wood properties tend to be under stronger genetic control than growth traits (Zobel and Jett, 1995), so selection based on wood density may be more effective than selection based on tree growth rate.…”

Section: Introductionmentioning

confidence: 99%

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Genetic variation in wood density and correlations with tree growth in Prosopis africana from Burkina Faso and Niger

Montes¹,

Weber²

2009

Ann. For. Sci.

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Abstract• 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. Mots-clés :Sahel / adaptation / conservation / amélioration des arbres Résumé -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.• La variation de la densité du bois et sa corrélation avec la croissance de l'arbre ont été étudiées à l'âge de 13 ans dans un essai de provenances/descendances de Prosopis africana au Niger. L'essai a inclus les descendances de 256 arbres mères provenant de 24 provenances de l'écozone sahélienne du Burkina Faso et du Niger.• La variation de la densité du bois a été significative en relation avec les provenances et les familles à l'intérieur des provenances. L'héritabilité a été plus élevée pour la densité que pour les caractères de croissance de l'arbre. La densité moyenne des provenances a augmenté des sites les plus humides aux sites les plus secs de la région échantillonnée. Les corrélations phénotypiques ont montré que les plus grands arbres ont eu tendance à avoir le bois le plus dense.• Les clines suggèrent que les populations naturelles de P. africana des sites les plus secs de la région échantillonnée ont la capacité génétique de produire du bois plus dense que les populations des sites les plus humides de la région. Les corrélations et les héritabilités estimées suggèrent que la sélection d'arbres à croissance rapide peut produire un faible gain en volume de bois et très peu de gain en densité du bois dans la génération suivante. Des essais de provenance/descendance dans plusieurs sites sont nécessaires pour confirmer cette conclusion provisoire.

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