Treatments Mean Percentage of Cells with C-Mitosis DMRT Kruskal-Wallis Test Distilled water 3.024 A P value= .000 100 g/L 27.026 B F comp.= 19.033** 300nM Hydrogen Peroxide 48.82 C **highly significant 500 g/L 69.2 D   1000 g/L 71.6 DE   **highly significant at α=0.05; means designated with different letter are significantly different

Table 3: Mean percentage of cells with C-mitoses (C-metaphase and C–anaphase), Kruskal-Wallis Test and DMRT of onion root tip meristems subjected to the different concentrations of sediment elutriates (SE) and the controls for 72 hours.