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).

Superscripted numbers (1–4) indicate the error terms used in model, as follows1 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 *** p ≤ 0.001.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).