Sources of phenotypic variation of wood density and relationships with mean growth in two Eucalyptus species in Argentina
| Autor: | Pamela-Cecilia Alarcón, Maria-Elena Fernández, Gustavo-Pedro-Javier Oberschelp, Pablo Pathauer, Alejandro Martínez-Meier |
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| Rok vydání: | 2021 |
| Předmět: |
Productos de la Madera
Wood Density Argentina technology industry and agriculture Wood Properties Soil Science Eucalyptus Grandis Forestry SD1-669.5 Biology Propiedades de la Madera complex mixtures Eucalyptus Eucalyptus Viminalis Variation (linguistics) Wood Products Plasticidad de la Madera Botany Densidad de la Madera Ecology Evolution Behavior and Systematics |
| Zdroj: | Forest Systems 30 (3) : e013 (2021) INTA Digital (INTA) Instituto Nacional de Tecnología Agropecuaria instacron:INTA Forest Systems; Vol. 30 No. 3 (2021); e013 Forest Systems; Vol. 30 Núm. 3 (2021); e013 Forest Systems, Vol 30, Iss 3 (2021) |
| ISSN: | 2171-9845 |
| Popis: | Aims of the study: To describe the radial patterns of wood density, and to identify their main sources of variation, and the potential tradeoffs with mean tree growth, in two Eucalyptus species. Area of study: Mesopotamian (Corrientes and Entre Ríos provinces) and Pampean region (Buenos Aires province) of Argentina. Materials and methods: Eucalyptus grandis and Eucalyptus viminalis, growing in genetic trials installed in two sites per species were studied. X-ray wood microdensity profiles were developed from core samples. Each profile was proportionally divided in 10 sections. Mean, maximum, minimum and the standard deviation of wood density, for each section were computed. Mean annual growth was used to study the relationships with wood microdensity variables. A linear mixed-effects model computed the significance of different sources of phenotypic variation. Pearson´s correlation computed the relationships between variables. Main results: The pattern of radial variation in E. grandis showed a decrease in wood density from pith to bark, mainly due to the decrease in minimum wood density, while in E. viminalis, wood density increased towards the outer wood. In both species, the standard deviation of the wood density increased along the radial profile from pith to bark. Significant variation in wood density was explained by site, provenance and clone/family effects. In E. grandis mean, maximum and minimum wood density were negatively correlated with mean growth, whereas in E. viminalis correlations were positive but close to zero. Research highlights: Both the pattern of radial variation of wood density and the relationship between wood density and mean growth were different in the studied Eucalyptus species, and they varied within species depending on the site they were growing and genetic provenance. Fil: Alarcón, Pamela Cecilia. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Concordia; Argentina. Fil: Alarcón, Pamela Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Fernández, María Elena. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Fernández, María Elena. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Agencia de Extensión Rural Tandil; Argentina. Fil: Oberschelp, Gustavo Pedro Javier. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Concordia; Argentina. Fil: Pathauer, Pablo Santiago. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Recursos Biológicos; Argentina. Fil: Martínez Meier, Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bariloche; Argentina. Fil: Martínez Meier, Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. |
| Databáze: | OpenAIRE |
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