eCite Digital Repository

Physiological response to pruning severity in Eucalyptus regnans plantations

Citation

Lisboa, M and Acuna, E and Cancino, J and Chao, F and Munoz, F and Rodriguez, R and Volker, P, Physiological response to pruning severity in Eucalyptus regnans plantations, New Forests, 45, (6) pp. 753-764. ISSN 0169-4286 (2014) [Refereed Article]

Copyright Statement

Copyright 2014 Springer Science+Business Media Dordrecht

DOI: doi:10.1007/s11056-014-9434-8

Abstract

The photosynthetic response to pruning was measured in two Eucalyptus regnans stands, aged 2 and 3 years, located in areas of high productivity on the coast of the province of Arauco, Chile. Variables such as rates of CO2 assimilation and stomatal conductance were measured in three ages of foliage on trees with different pruning severity treatments, which corresponded to the removal of 0 % (control), 30, 50 and 70 % of live crown length. The 2-year-old stand measurements were performed at the time of pruning and 6, 10, 14 and 18 weeks later, and the 3-year stand, 5, 9, 18 and 28 weeks after pruning. In both trials, significant differences were found between the foliage ages for all instances of measurement showing the mature foliage the highest values up to 30 % higher than old foliage. There were also significant differences between pruning severity treatments in both trials in which, in general, the highest values of CO2 assimilation were observed among the highest pruning severity treatments with values up to 40 % higher than the unpruned trees.

Item Details

Item Type:Refereed Article
Keywords:photosynthesis, stomatal conductance, pruning severity, compensatory response to pruning
Research Division:Agricultural and Veterinary Sciences
Research Group:Forestry Sciences
Research Field:Forestry Management and Environment
Objective Division:Plant Production and Plant Primary Products
Objective Group:Forestry
Objective Field:Hardwood Plantations
Author:Volker, P (Dr Peter Volker)
ID Code:118030
Year Published:2014
Web of Science® Times Cited:2
Deposited By:Plant Science
Deposited On:2017-06-30
Last Modified:2017-08-28
Downloads:0

Repository Staff Only: item control page