Phenotypic variation of basic wood density in Pinus ponderosa plus trees

Phenotypic selection generally reduces the variability of both the selected trait and other associated characteristics. Some species show a negative strong relationship between growth traits and wood density. In the present study, basic wood density was assessed in a group of 23 control trees and 25...

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Autores principales:	Martinez-Meier,Alejandro, Gallo,Leonardo, Pastorino,Mario, Mondino,Víctor, Rozenberg,Philippe
Lenguaje:	English
Publicado:	Universidad Austral de Chile, Facultad de Ciencias Forestales 2011
Materias:	specific wood density repeated measurements genetic breeding Patagonian Argentine
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002011000300003
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spelling	oai:scielo:S0717-920020110003000032011-12-26Phenotypic variation of basic wood density in Pinus ponderosa plus treesMartinez-Meier,AlejandroGallo,LeonardoPastorino,MarioMondino,VíctorRozenberg,Philippe specific wood density repeated measurements genetic breeding Patagonian Argentine Phenotypic selection generally reduces the variability of both the selected trait and other associated characteristics. Some species show a negative strong relationship between growth traits and wood density. In the present study, basic wood density was assessed in a group of 23 control trees and 25 Pinus ponderosa plus trees, selected for growth and form traits in the Argentine Patagonia region. Trees were sampled in four different sites from the environmental and silvicultural point of view. We aim to study if the phenotypic variation in wood density is somehow influenced by the selection for productivity and form. The average wood density of plus trees was 0.37 g cm-3, ranging from 0.29 to 0.46 g cm-3. These values were not significantly different to control trees and were similar to those previously found in P. ponderosa plantations growing in the region. Wood density of the improved population, represented by plus trees did not differ from that of base population from which plus trees were selected. Significant differences were found in wood basic density among sites and age-classes. The phenotypic variation of the increment of wood density from pith to bark and among trees was different from zero. Not significant association was found between wood basic density and growth and form traits, except for stem straightness. It would be possible to identify high wood density trees at half of the rotation age.info:eu-repo/semantics/openAccessUniversidad Austral de Chile, Facultad de Ciencias ForestalesBosque (Valdivia) v.32 n.3 20112011-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002011000300003en10.4067/S0717-92002011000300003
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	specific wood density repeated measurements genetic breeding Patagonian Argentine
spellingShingle	specific wood density repeated measurements genetic breeding Patagonian Argentine Martinez-Meier,Alejandro Gallo,Leonardo Pastorino,Mario Mondino,Víctor Rozenberg,Philippe Phenotypic variation of basic wood density in Pinus ponderosa plus trees
description	Phenotypic selection generally reduces the variability of both the selected trait and other associated characteristics. Some species show a negative strong relationship between growth traits and wood density. In the present study, basic wood density was assessed in a group of 23 control trees and 25 Pinus ponderosa plus trees, selected for growth and form traits in the Argentine Patagonia region. Trees were sampled in four different sites from the environmental and silvicultural point of view. We aim to study if the phenotypic variation in wood density is somehow influenced by the selection for productivity and form. The average wood density of plus trees was 0.37 g cm-3, ranging from 0.29 to 0.46 g cm-3. These values were not significantly different to control trees and were similar to those previously found in P. ponderosa plantations growing in the region. Wood density of the improved population, represented by plus trees did not differ from that of base population from which plus trees were selected. Significant differences were found in wood basic density among sites and age-classes. The phenotypic variation of the increment of wood density from pith to bark and among trees was different from zero. Not significant association was found between wood basic density and growth and form traits, except for stem straightness. It would be possible to identify high wood density trees at half of the rotation age.
author	Martinez-Meier,Alejandro Gallo,Leonardo Pastorino,Mario Mondino,Víctor Rozenberg,Philippe
author_facet	Martinez-Meier,Alejandro Gallo,Leonardo Pastorino,Mario Mondino,Víctor Rozenberg,Philippe
author_sort	Martinez-Meier,Alejandro
title	Phenotypic variation of basic wood density in Pinus ponderosa plus trees
title_short	Phenotypic variation of basic wood density in Pinus ponderosa plus trees
title_full	Phenotypic variation of basic wood density in Pinus ponderosa plus trees
title_fullStr	Phenotypic variation of basic wood density in Pinus ponderosa plus trees
title_full_unstemmed	Phenotypic variation of basic wood density in Pinus ponderosa plus trees
title_sort	phenotypic variation of basic wood density in pinus ponderosa plus trees
publisher	Universidad Austral de Chile, Facultad de Ciencias Forestales
publishDate	2011
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002011000300003
work_keys_str_mv	AT martinezmeieralejandro phenotypicvariationofbasicwooddensityinpinusponderosaplustrees AT galloleonardo phenotypicvariationofbasicwooddensityinpinusponderosaplustrees AT pastorinomario phenotypicvariationofbasicwooddensityinpinusponderosaplustrees AT mondinovictor phenotypicvariationofbasicwooddensityinpinusponderosaplustrees AT rozenbergphilippe phenotypicvariationofbasicwooddensityinpinusponderosaplustrees
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Phenotypic variation of basic wood density in Pinus ponderosa plus trees

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