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Rehmus, A.; Bigalke, M.; Valarezo, C.; Mora Castillo, J.R. &amp; Wilcke, W. (2015): <b>Aluminium toxicity to tropical montane forest tree seedlings in southern Ecuador: Response of the nutrient status to elevated Al concentrations</b>. <i>Plant and Soil</i> <b>388</b>, 87-97.

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)
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<br/> shoot biomass production of Cedrela odorata L., Heliocarpus americanus L., and Tabebuia chrysantha<br/> (Jacq.) G. Nicholson while 300 ?M Al stimulated root biomass production of Tabebuia chrysantha.<br/> Methods Nutrient concentrations in plant tissue after a hydroponic growth experiment were determined.<br/> Results Increasing Al concentrations significantly decreased Mg concentrations in leaves. Phosphorus<br/> 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.<br/> Conclusions Shoot biomass production was likely inhibited by reduced Mg uptake, impairing photosynthesis.<br/> 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.lcrs.de/publications.do?citid=1321


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