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. 2015 Jul 7;3:e1090. doi: 10.7717/peerj.1090

Figure 5. The effect of growth form and exposure to either control or A. petiolata soil history on quantum yield of PSII at weeks 5 and 9 (A), leaf chlorophyll concentration at weeks 5 and 9 (B) and plant height at week 5 (C).

Figure 5

The effect of growth form on root diameter (D) and specific root length (E). Different letters above bars, when present, represent statistically significant differences (P < 0.05) among groups within each treatment, as determined by a comparison of 95% confidence limits among groups.