Document Type: Original Article


1 MSc. in Plant Physiology, Biology Group, Department of Basic Sciences, Islamic Azad University, Neyshabour Branch, Iran

2 Scholar of Agriculture and Natural Resources Research Center of Sistan, Zabol, Iran


Objective: To study plants purification capability of  Cu on two cultivars of vetch plant (Vigna Radiata) in contaminated soils and their effects on morphological characteristics. Methods: we conducted a completely randomized trial as factorial. Different concentrations of  Cu (0, 150, 300, and 400 mg/ Kg of dried soil) were used. After four weeks growth on contaminated soil, parameters such as aerial parts height, roots, fresh and dry weight, as well as intake and aggregation levels of Cu in aerial parts and roots were measured in both cultivars of Sistan and Gohar. Results: Analysis results indicated that increased levels of Copper to decreased height of aerial parts and roots, and dry and fresh weight of both cultivars. Measuring of metal content showed that with increase in metals concentration in soils, their aggregation into aerial parts will be increased. Metal aggregation within aerial parts and roots was not different significantly, indicating metals transferring from roots to aerial parts. Conclusions: Results show that the vetch plant is able to purify soils and intake heavy metals such as Cu from it.


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