Mycelial growth rates in the pure culture experiment.

Growth rates are grouped by species and competition treatment, with the single-species treatment in bold. Values are means +/- 1 standard deviation in parentheses. Different letters indicate significant differences in growth rates as determined by post-hoc Tukey HSD tests. Growth ratios were calculated by dividing the mean growth rate in the second half of the experiment by the mean growth rate in the first half of the experiment.