Table 2. F values and significance levels from full ANOVA of the main effects and interactions in relation to the total biomass (W), plant height (H), and the relative weights of shoots (%S) and roots (%R).
| Source | d.f. | H | W | %S | %R |
|---|---|---|---|---|---|
| Treatment 1 | 3 | 14.85*** | 62.21*** | 14.66*** | 14.66*** |
| Sediment 2 | 1 | 10.23** | 30.46*** | 0.00 | 0.00 |
| Treatment ×Sediment 2 | 3 | 2.08 | 2.58 | 2.03 | 2.03 |
| Time 3 | 4 | 185.53*** | 253.83*** | 46.54*** | 46.54*** |
| Treatment ×Time 3 | 12 | 2.17* | 24.54*** | 4.87*** | 4.87*** |
| Sediment ×Time 4 | 4 | 1.05 | 6.31*** | 3.00* | 3.00* |
| Treatment ×Sediment ×Time 4 | 12 | 0.75 | 2.10* | 0.50 | 0.50 |
Superscripted numbers (1–4) indicate the error terms used in model, as follows
1 Plot (Treatment) with 15 d.f.
2 Plot (Treatment) × Sediment with 15 d.f.
3 Plot (Treatment) × Time with 60 d.f.
4 Plot (Treatment) × Sediment × Time with 60 d.f.
* p ≤ 0.05.
** p < 0.01.
*** p ≤ 0.001.