Assessment of Zinc Bioaccumulation in Soybean
DOI:
https://doi.org/10.55863/ijees.2025.0443Keywords:
Bioaccumulation factor, Atomic absorption spectrometry, Heavy metals, Translocation factorAbstract
In the present work, Soybean (Glycine max (L.) Merr.) plants were exposed to different concentrations of zinc up to 1250 mg/kg of soil to understand how they bioaccumulate into different plant parts. The zinc concentration in the plant parts was estimated at the pre-flowering, peak-flowering, and post-flowering stages. Our results directly correlate soil zinc concentration and bioaccumulation by soybean plants. There is a distinct accumulation hierarchy: roots accumulate the highest levels of zinc, followed by leaves, stems, and seeds. Important for human health, our study revealed that zinc content in soybean seeds was close to the permitted level of 500 mg/kg and thus safe for human consumption. We also analyzed translocation factors (TFs) and bioconcentration factors (BCFs) for zinc to understand the dynamics of zinc translocation within the plant. As both the TF and BCF values obtained were < 1, it is recommended that the Soybean crop should not be used for zinc phytoremediation.
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