Single and Combined Effect of Cd and Zn on Growth, Metal Accumulation and Mineral Nutrition in Tobacco Plants (Nicotiana tabacum L.)

Abstract Contamination by heavy metals (HM) is a global concern due to their impact on terrestrial and aquatic environments. This question has great relevance in agricultural areas excessive chemical fertilization. In this sense, Cd toxic element that can reach soils through fertilization or sewage sludges. Tobacco plants ( Nicotiana tabacum L.) uptake accumulate tissues, therefore, an increased risk for human health tobacco consumption. study was performed evaluate the response of single combined amendment Zn soil with pot experiment. A factorial experiment four levels (0, 25, 50 100 mg kg -1 ) three 15 25 ). Growth, bioaccumulation nutrient parameters were assessed. The results revealed during growth, bioaccumulated roots (translocation factor <1), while aerial part (TF>1). Besides, significantly decreased accumulation, especially under intermediate doses (15 Zn). Zinc amendments could be helpful as mitigation measure and, reduction.