Effects of copper (CuSO4) content (0, 100, 150 μM) on grapevine growth, and H2O2 (nmol g-1 FW) concentrations. Values followed by different letters in the same column are significantly different at P

Table 1: Effects of copper (CuSO4) content (0, 100, 150 μM) on grapevine growth, and H₂O₂ (nmol g^-1 FW) concentrations. Values followed by different letters in the same column are significantly different at P < 0.05. (n = 5, ± SE).

Treatments	Plant Height (cm)	H₂O₂(nmol g^-1 FW)
0 CuSO₄	88.7 ± 0.23c	7.1 ± 0.1a
100 μM CuSO₄	81 ± 0.31c	8.0 ± 0.4c
150 μM CuSO₄	67 ± 0.42a	8.3 ± 0.2c
0,1 mM melatonin	86.5 ± 0.65c	7.3 ± 0.1b
100 μM CuSO₄+ 0.1 mM melatonin	79 ± 0.24c	7.4 ± 0.2b
150 μM CuSO₄+ 0.1 mM melatonin	74 ± 0.38b	7.9 ± 0.3c