Wood density and anatomy of three Eucalyptus species: implications for hydraulic conductivity

Aim of the study: To characterize wood anatomical traits of three Eucalyptus species that differ in wood density and ecological requirements, and to examine the relationships between some anatomical features, wood density, and theoretical xylem hydraulic conductivity (Ks). Area of study: We analyze...

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Autores principales: Barotto, Antonio José, Monteoliva, Silvia Estela, Gyenge, Javier, Martínez-Meier, Alejandro, Moreno, Karen G., Tesón, Natalia, Fernández, María Elena
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
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Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/77130
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id I19-R120-10915-77130
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Agrarias
functional wood anatomy
lumen fraction
theoretical hydraulic conductivity
vessel composition
wood density
spellingShingle Ciencias Agrarias
functional wood anatomy
lumen fraction
theoretical hydraulic conductivity
vessel composition
wood density
Barotto, Antonio José
Monteoliva, Silvia Estela
Gyenge, Javier
Martínez-Meier, Alejandro
Moreno, Karen G.
Tesón, Natalia
Fernández, María Elena
Wood density and anatomy of three Eucalyptus species: implications for hydraulic conductivity
topic_facet Ciencias Agrarias
functional wood anatomy
lumen fraction
theoretical hydraulic conductivity
vessel composition
wood density
description Aim of the study: To characterize wood anatomical traits of three Eucalyptus species that differ in wood density and ecological requirements, and to examine the relationships between some anatomical features, wood density, and theoretical xylem hydraulic conductivity (Ks). Area of study: We analyzed 86 trees from three sites of Argentina (Entre Ríos and Buenos Aires Provinces). Methods: The sampled trees were Eucalyptus globulus, E. grandis and E. viminalis ranging from 11 to 15 years old. One stem disc was cut from each tree to determine wood density and identify quantitative anatomical features of vessels and fibers. Vessel composition (S, size - to-number ratio, a measure of vessel size distribution) and lumen fraction (F, the total sapwood area available for water transport) were estimated. Results: E. grandis, the species with the highest growth rates, presented the highest theoretical Ks. This was associated with anatomical features such as a high density of wide vessels resulting in high F. On the other hand, E. viminalis, the species with the lowest growth rates and highest resistance to environmental stress, showed lower Ks as a result of a low density of wide vessels. These two species differed not only greatly in wood density but also in fiber characteristics. In the case of E. globulus, vessels were relatively narrow, which resulted in the lowest theoretical Ks, fibers were small, and wood density intermediate. Research highlights: F had greater influence on Ks than S. The anatomical characteristics and wood density could only partly explain the differential growth or resistance to stress of the studied species.
format Articulo
Articulo
author Barotto, Antonio José
Monteoliva, Silvia Estela
Gyenge, Javier
Martínez-Meier, Alejandro
Moreno, Karen G.
Tesón, Natalia
Fernández, María Elena
author_facet Barotto, Antonio José
Monteoliva, Silvia Estela
Gyenge, Javier
Martínez-Meier, Alejandro
Moreno, Karen G.
Tesón, Natalia
Fernández, María Elena
author_sort Barotto, Antonio José
title Wood density and anatomy of three Eucalyptus species: implications for hydraulic conductivity
title_short Wood density and anatomy of three Eucalyptus species: implications for hydraulic conductivity
title_full Wood density and anatomy of three Eucalyptus species: implications for hydraulic conductivity
title_fullStr Wood density and anatomy of three Eucalyptus species: implications for hydraulic conductivity
title_full_unstemmed Wood density and anatomy of three Eucalyptus species: implications for hydraulic conductivity
title_sort wood density and anatomy of three eucalyptus species: implications for hydraulic conductivity
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/77130
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