2.6. pH measurement
Values of pH were determined by a UltraBasic pH Meter (Denver
Instrument Company, USA).
2.7. Statistical analyses
All statistical analyseswere carried out using Statistica (StatSoft, Inc.,
Tulsa, Oclahoma, USA). Analysis of variance was performed using oneway
ANOVA analysis and taking P b 0.05 as significant to determine
the effect of medium supplements and to test uranium uptake in a
range of plant species. Statistically insignificant values on the level of
probability P b 0.05 are indicated by the same symbol above columns
in figures. The error bars indicate the standard deviation of analyzed
contents.