Treatments     Mean Mitotic Index DMRT ANOVA 300nM Hydrogen Peroxide 7.92 A P value= .000 1000 g/L 8.4 A F comp.= 8.749** 500 g/L 11.56 AB **highly significant 100 g/L 17.66 BC   Distilled water 20.06 C   **highly significant at α=0.01; means designated with different letters are significantly different from each other.

Table 1: Mean mitotic indices, ANOVA and DMRT of onion root meristems subjected to the different concentrations of the sediment elutriate (SE) and the controls for 72 hours.