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Figure 2

From: Azolla along a phosphorus gradient: biphasic growth response linked to diazotroph traits and phosphorus-induced iron chlorosis

Figure 2

P content (µmol P g−1 DW; (a) N content (µmol N g−1 DW; (b) and N: P ratios (mol mol−1; (c) ±SE of A. filiculoides during 21 days of growth at 0.5, 2, 10, 50 and 100 µmol P l−1 (n = 5). Different letters indicate significant differences (Bonferroni post hoc test). Additional results of the statistical analyses are presented in Supplementary Table S2.

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