Seed germination and seedling root growth of three <i>A.l.</i> ssp. <i>lyrata</i> populations.

<p><b>A.</b> Germination percentage, <b>B.</b> Germination rate, and <b>C.</b> Seedling root growth rate. All data are presented as a mean ± standard error (n = 12). The seeds were from serpentine (Pilot), limestone sand (Dover), and sandy loam (Jug Bay) soils. Different upper case letters indicate significant differences among populations, and different lower case letters indicate significant differences among substrate Ca to Mg ratios as separated by Tukey’s HSD (P<0.05).