ROOT HYDRAULIC CONDUCTIVITY AND PHOTOSYNTHETIC CAPACITY OF EUCALYPT CLONAL CUTTINGS WITH ROOT MALFORMATION INDUCTIONS

http://dx.doi.org/10.5902/1980509814566The gain reduction of wood biomass in trees has been assigned to root deformations even in the nursery phase. The objective of this work was the evaluation of the root system hydraulic conductivity, gas exchanges and photochemical efficiency of eucalypt clonal...

Full description

Saved in:
Bibliographic Details
Published inCiência florestal Vol. 24; no. 2; pp. 277 - 287
Main Authors Fábio Afonso Mazzei Moura de Assis Figueiredo, José Geraldo de Araújo Carneiro, Ricardo Miguel Penchel, Eliemar Campostrini, José Tarcísio de Lima Thiebaut, Deborah Guerra Barroso
Format Journal Article
LanguagePortuguese
Published Universidade Federal de Santa Maria 01.06.2014
Subjects
condutividade hidráulica
Eucalyptus spp
sistema radicular
trocas gasosas
Online AccessGet full text

Cover

More Information
Summary:http://dx.doi.org/10.5902/1980509814566The gain reduction of wood biomass in trees has been assigned to root deformations even in the nursery phase. The objective of this work was the evaluation of the root system hydraulic conductivity, gas exchanges and photochemical efficiency of eucalypt clonal cuttings with and without root deformation inductions. The treatments were: 1) operational cuttings without root malformation inductions (grown according to the used methodology of Fibria Cellulose S.A.); 2) root deformation inductions. These inductions did not promote decrease in the root volume. However, the deformations brought reduction of the root system hydraulic conductivity. Lower photosynthetic rates were also observed along the day in the cuttings in the root deformed cuttings. This decreasing rate is connected to stomatal and non stomatal factors.
ISSN:0103-9954
1980-5098
DOI:10.5902/1980509814566