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The Role of Nitrilotriacetate in Copper Uptake by Tobacco

^a Swiss Federal Research Station for Agroecology and Agriculture, Liebefeld, Schwarzenburgstrasse 155, CH-3003 Bern, Switzerland
^b Institute of Terrestrial Ecology (ITO), ETH Zurich, Grabenstrasse 3, CH-8952 Schlieren, Switzerland
^c Institute of Terrestrial Ecology (ITO), ETH Zürich, Grabenstrasse 3, CH-8952 Schlieren, Switzerland

View larger version (37K): [in a new window]   Fig. 1. Copper and iron concentrations (mg kg-1) in shoots and roots and biomass production (g plant-1) of tobacco (cv. Burley 92) in different treatments for the nutrient solution experiment without montmorillonite. Columns with no common index are significantly different at P 0.05. NTA, nitrilotriacetate.

View larger version (48K): [in a new window]   Fig. 2. Copper and iron concentrations (mg kg-1) in shoots and roots and biomass production (g plant-1) of tobacco (cv. Badischer Geudertheimer) in different treatments for the nutrient solution experiment with montmorillonite. Columns with no common index are significantly different at P 0.05. NTA, nitrilotriacetate.