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Humic acid ameliorates phytoremediation, plant growth and antioxidative enzymes in forage turnip (Brassica rapa L.)

Author

Listed:
  • Sibel Boysan Canal

    (Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Van Yuzuncu Yil University, Van, Türkiye)

  • Mehmet Ali Bozkurt

    (Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Van Yuzuncu Yil University, Van, Türkiye)

  • Hilal Yílmaz

    (Izmit Vocational School, Department of Plant and Animal Production Kocaeli University, Kocaeli, Türkiye)

Abstract

In this study, the effects of ethylenediaminetetraacetic acid (EDTA) and humic acid (HA) chelate applied to soils contaminated with heavy metals on the development, antioxidant defence system, and phytoremediation of forage turnip (Brassica rapa L.) were investigated for the first. Three doses of EDTA (E1: 5 mmol/kg, E2: 10 mmol/kg, E3: 15 mmol/kg) and three doses of HA (HA1: 500 mg/kg, HA2: 1 000 mg/kg, HA3: 2 000 mg/kg) were applied to soils contaminated with heavy metals (Cd, Pb, Zn, and Cr) in the pot. According to experiment results, HA application as chelate to the polluted soil caused a significant increase in the growth of forage turnip. Phytoremediation values of the plant for Cd heavy metal were found to be BCFshoot, BCFroot > 1, and translocation factor > 1. This result proved that forage turnip has Cd accumulating properties. Also, HA application caused a decrease in H2O2 (46%) and malondialdehyde (6%) levels and antioxidative enzyme activity in polluted soil. It has been concluded that humic acid improves the oxidative stress conditions in the plant and is more effective in the development and growth of the plant than EDTA, so that it can be used effectively in phytoremediation studies.

Suggested Citation

  • Sibel Boysan Canal & Mehmet Ali Bozkurt & Hilal Yílmaz, 2023. "Humic acid ameliorates phytoremediation, plant growth and antioxidative enzymes in forage turnip (Brassica rapa L.)," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 69(12), pages 567-576.
    • Handle: RePEc:caa:jnlpse:v:69:y:2023:i:12:id:394-2023-pse
    DOI: 10.17221/394/2023-PSE
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    References listed on IDEAS

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    1. Abdurrahim Yilmaz & Ertan Yildirim & Hilal Yilmaz & Hakkı Ekrem Soydemir & Emrah Güler & Vahdettin Ciftci & Mehmet Yaman, 2023. "Use of Arbuscular Mycorrhizal Fungi for Boosting Antioxidant Enzyme Metabolism and Mitigating Saline Stress in Sweet Basil (Ocimum basilicum L.)," Sustainability, MDPI, vol. 15(7), pages 1-14, March.
    2. B. Kos & H. Grčman & D. Leštan, 2003. "Phytoextraction of lead, zinc and cadmium from soil by selected plants," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 49(12), pages 548-553.
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