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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
The Effect of Zinc (Zn) Fertilization on Alleviating Cd Accumulation in Durum Wheat Grain
Author(s)
Faruk Özkutlu1 and Şevket Metin Kara2
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DOI:10.17265/2161-6264/2018.04.001
Affiliation(s)
1. Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Ordu University, Ordu 52200, Turkey
2. Department of Field Crops, Faculty of Agriculture, Ordu University, Ordu 52200, Turkey
ABSTRACT
Cadmium (Cd) contamination of agricultural soils may pose severe risks
and hazards for humans through food chain, as crop plants accumulate Cd in
their edible tissues. Cd translocation from
soil to plant is largely dependent on soil and plant type. Cd accumulation
occurs much more in crop plants grown in soils with severe zinc (Zn) deficiency and durum
wheat tends to accumulate more Cd in grain than the other cereals. The
objective of this study was to evaluate the alleviating effect of Zn fertilization on
Cd accumulation in durum wheat grain. A pot experiment including foliar Zn application of 0.3%
w/v ZnSO4 and soil Cd applications of 0, 0.2 and 1.0 mg/kg was carried out in
a completely randomized design using a Zn-deficient soil. Grain Cd
concentration of plants receiving 0 mg/kg Cd was 31 µg/kg, whereas with 0.2
mg/kg and 1.0 mg/kg Cd applications it
increased to the levels of 215 µg/kg and 1,489 µg/kg, respectively.
Along with 0.3% ZnSO4 leaf applications, grain Cd concentrations
decreased to 171 µg/kg and 754 µg/kg, by a reduction of
20.5% and 49.3%, respectively. In conclusion, it was determined that leaf
applied Zn fertilizer might alleviate Cd accumulation in durum wheat grain in
Zn deficiency conditions.
KEYWORDS
Cadmium, Triticum turgidum L. durum, Zn deficiency, Zn-deficient soil.
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