Fig. 2
SPAD values (a) and relative growth rate (RGR,b嫌钙植物的Adiantum flabellulatum(Af) and the calcicoleA. capillus-venerisf.dissectum(Ac) andA. malesianum(Am) grown on acidic, calcareous and mixed soils. Bar are means ± SE of 7 replicates from two-way ANOVA (a) or two-way ANCOVA (b). Different letters indicate significant differences across all species (P < 0.05)