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Rehmus, A.; Bigalke, M.; Valarezo, C.; Mora Castillo, J.R. & Wilcke, W. (2015): Aluminium toxicity to tropical montane forest tree seedlings in southern Ecuador: Response of the nutrient status to elevated Al concentrations. Plant and Soil 388, 87-97
DOI: http://dx.doi.org/10.1007/s11104-014-2276-5.

Resource Description

Title: Aluminium toxicity to tropical montane forest tree seedlings in southern Ecuador: Response of the nutrient status to elevated Al concentrations
FOR816dw ID: 1321
Publication Date: 2015-01-01
License and Usage Rights: PAK 823-825 data user agreement. (www.tropicalmountainforest.org/dataagreementp3.do) http://www.tropicalmountainforest.org/dataagreement.do
Resource Owner(s):
Individual: Agnes Rehmus
Contact:
Individual: Moritz Bigalke
Contact:
Individual: Carlos Valarezo
Contact:
Individual: Julio Renato Mora Castillo
Contact:
Individual: Wolfgang Wilcke
Contact:
Abstract:
Aims We determined the reasons why in nutrient solution increasing Al concentrations>300 ?M inhibited
shoot biomass production of Cedrela odorata L., Heliocarpus americanus L., and Tabebuia chrysantha
(Jacq.) G. Nicholson while 300 ?M Al stimulated root biomass production of Tabebuia chrysantha.
Methods Nutrient concentrations in plant tissue after a hydroponic growth experiment were determined.
Results Increasing Al concentrations significantly decreased Mg concentrations in leaves. Phosphorus
concentrations in roots of C. odorata and T. chrysantha were significantly highest in the treatment with 300 ?M Al and correlated significantly with root biomass.
Conclusions Shoot biomass production was likely inhibited by reduced Mg uptake, impairing photosynthesis.
The stimulation of root growth at low Al concentrations can be possibly attributed to improved P uptake.
Keywords:
| phosphorus | aluminum toxicity | tropical forest tree seedling | nutrient deficiency | growth stimulation |
Literature type specific fields:
ARTICLE
Journal: Plant and Soil
Volume: 388
Page Range: 87-97
Publisher: Springer
Publication Place: Dordrecht
ISSN: 0032-079X
Metadata Provider:
Individual: Wolfgang Wilcke
Contact:
Online Distribution:
Download File: http://www.tropicalmountainforest.org/publications.do?citid=1321

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