Effect of irrigation water salinity and Zinc application on growth and Cadmium concentration of Kohlrabi in Cadmium-Contaminated Soil

The aim of the study was to investigation effect of irrigation with two types of CaCl2 and NaCl salinities and Zinc application on Cadmium concentration and growth of kohlrabi plant (Brassica olerace var. gongylodes) in Cadmium-Contaminated Soil. This experiment was completely random design (factorial) with three replicates. Treatments were three levels of Zn (0, 50 and 100 mg.kg-1) using Zinc sulfate salt, and three salinity levels (0, 2.5 and 5 dSm-1) by using two types of sodium chloride and calcium chloride salts in irrigation water. For polluted soil, 15 mg.kg-1 of Cadmium by Cadmium nitrate salt was added to all soils before treating soil with different treatments. Result showed that increasing water salinity led to raising Cadmium concentration in above ground of kohlrabi and decreasing kohlrabi growth. CaCl2 salinity compare to NaCl salinity showed less Zinc concentration at root Kohlrabi plant. Zinc treatment had any effect on plant growth properties.