Author/Authors :
- - نويسنده Assistant Professor, Department of Environmental Sciences, Faculty of Sciences, Shahid Rajaee Teacher Training University, Tehran, Iran Sakizadeh Mohamad , - - نويسنده Associate Professor, Department of Soil Sciences, Shahrood University of Technology, Shahrood, Iran Ghorbani Hadi
Abstract :
Background: Concentrations of Se in seven plant species (white mulberry, apricot, spindle tree, pistachio, wheat, barley, chives), and the associated soil samples were investigated in Shahrood and Damghan, Iran. Materials and Methods: Soil samples were taken from the surface zone (0-5 cm) and plough zone (5-20 cm) in 13 sampling locations. The collected soil and plant samples were taken to the laboratory, then digested usin USEPAʹs method and analyzed by Inductively Coupled Plasma Optical Emission Spectroscopy technique. Results: Since there was a significant correlation (r=0.688, p<0.01) between Se concentration in the two soilʹs depths, it was turned out that agricultural practices, through tillage and plough, had probably moved Se to the deeper parts of the soil in area in which agricultural activity was prevalent. The highest accumulation of Se was recorded in the chives with the average value of 0.35mg kg-1. Except for apricot, the concentrations of Se in top parts of the plants (e.g. leaf, grain, fruit) were higher than stem/stalk, implying the easy translocation of this element in the considered plant species. Conclusions: The highest values of bio-concentration factors were recorded in chives followed by spindle tree and wheat, whereas the lowest level was detected in pistachio.
