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Figure 1

From: Modeling acute toxicity of metal mixtures to wheat (Triticum aestivum L.) using the biotic ligand model-based toxic units method

Figure 1

Dose–response relationships between relative net elongation (RNE, %) of wheat and free metal ion activity: free Cu2+ activity (first column) and free Co2+ activity (second column) under different Mg treatments (first row) and pH levels (second row for Cu2+, third row for Co2+). Each series point represents the observed RNE at the corresponding solution of Mg and pH treatment. The solid lines are fitted using log-logistic curves (RNE = 100/{1 + [M2+ /EC50{M2+}]β M}). EC50 values and the slopes estimated based on these log-logistic curves are reported in Table 1.

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