Table 1.

Chemical composition of the Hoagland and our Arabidopsis 'standard' nutrient solutions

Chemical component	Hoagland solution (mol.l-1)	Standard solution (mol.l-1)
Ca(NO3)2.4H2O	4.03 10-3	1.01 10-3
NH4H2PO4	5.22 10-4	1.30 10-4
KNO3	6.04 10-3	5.10 10-3
MgSO4.7H2O	1.99 10-3	4.98 10-4
NaOH	1.25 10-4	3.13 10-5
EDTA	8.92 10-5	2.23 10-5
FeSO4.7H2O	8.96 10-5	2.24 10-5
H3BO3	9.68 10-6	9.68 10-6
MnCl2.4H2O	2.03 10-6	2.03 10-6
ZnSO4.7H2O	3.14 10-7	3.14 10-7
CuSO4.5H2O	2.10 10-7	2.10 10-7
MoO3	1.39 10-7	1.39 10-7
Co(NO3)2.6H2O	8.59 10-8	8.59 10-8
NH4NO3	0	2.93 10-5