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Table 2 Results of GeoChem-EZ analysis of nutrients solutions in Table 1

From: Morphological and genetic changes induced by excess Zn in roots of Medicago truncatula A17 and a Zn accumulating mutant

  Free Activity (−log)
Ion 1/2x 1/2 High 1/2x -N 1/2x High -N
Mg 4.176 4.177 4.16 4.16
Fe +2 5.902 5.818 5.894 5.822
Mn +2 6.189 5.801 6.178 5.79
Na 4.337 4.304 4.331 4.299
Zn 9.847 7.552 9.838 7.551
Cu +2 12.691 12.106 12.682 12.105
Co +2 11.09 10.506 11.081 10.505
Ca 3.563 3.563 3.546 3.545
K 2.378 2.378 2.372 2.372
EDTA 14.984 15.571 14.968 15.547
B(OH)4 7.522 7.522 7.521 7.521
Cl 3.044 3.044 3.038 3.038
SO4 3.585 3.568 3.565 3.547
MoO4 6.478 6.478 6.455 6.455
NH3 5.146 5.146 -- --
NO3 2.646 2.646 -- --
PO4 9.273 9.275 9.266 9.268
  1. Activities are estimated -log free activity. Zn and EDTA are in bold because concentrations of these compounds were altered to achieve sufficient Zn and excess Zn.
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