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. 2023 Mar 22;13:4682. doi: 10.1038/s41598-023-30899-z

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© The Author(s) 2023, corrected publication 2023

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Zinc stable isotope compositions (δ⁶⁶Zn) of leaves, stems and roots versus mass fractions (f) of Zn in leaves, stems and roots for the 19 cacao genotypes treated with 20 µmol L⁻¹ CdCl₂. The error bars denote the 2SD precision determined for multiple analyses of the Zn isotope standard that bracketed the sample runs. The blue line denotes the δ⁶⁶Zn value of + 0.51 ± 0.06‰ for the ZnSO₄ that was added to the hydroponic solutions.