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The increase in the availability of phosphorus (P) can reduce the toxicity of copper (Cu) to plants because it favors the formation of complexes and precipitates, reducing the bioavailability of this metal. The objective of this study was to investigate the capacity of P supplementation to decrease the phytotoxicity of excess Cu in the growth and in physiological parameters of wheat plants. Plants of wheat (Triticum aestivum L.) were cultivated on sand substrate and, for 30 days, submitted to the control treatments - Hoagland & Arnon solution 100% (H&A); H&A + 47 mg P L⁻¹ (H&A + P); H&A + 28 Cu mg L⁻¹ (H&A + Cu); H&A + 47 mg P L⁻¹ + 28 mg Cu L⁻¹ (H&A + P + Cu). Plant growth, tissue nutrient concentration, photosynthetic pigment concentration, chlorophyll a fluorescence and superoxide dismutase enzyme activity in the leaves were evaluated. We observed that the treatments H&A + P and …