<i>F</i> values and significance levels for the significant main effects from ANOVA of the total root surface area (RSA), separately for each harvest time interval.

<p>Superscripted numbers (1 and 2) indicate the error terms used in model, as follows</p><p>¹ Plot (Treatment) with 15 d.f.</p><p>² Plot (Treatment) × Sediment with 15 d.f.</p><p>* <i>p</i> ≤ 0.05.</p><p>** <i>p</i> < 0.01.</p><p>*** <i>p</i> ≤ 0.001.</p><p><i>F</i> values and significance levels for the significant main effects from ANOVA of the total root surface area (RSA), separately for each harvest time interval.