Effect of zinc contamination on Lythrum salicaria L. growth

In this study, the usability of Lythrum salicaria L. in the phytoremediation of Zn heavy metal was investigated. According to the results, the zinc concentration (12 098,33 mg / kg) that L. salicaria seedlings accumulated the highest zinc amount was 30 mg/L and there was a statistically negative correlation between zinc increase in solutions and relative root elongation, stem elongation and fresh weight (r = -0,89; r = -0,93 ve r = -0,96, respectively). No statistically significant correlation was found between the pH increase of the solution containing 30 mg / L Zn where the plant showed the best growth and the relative root elongation, stem elongation and fresh weight of the seedlings (r = 0,32; r = 0,16 ve r = 0,21, respectively). It was found that L. salicaria seedlings accumulated the maximum zinc at pH 7 (13 893.5 mg/kg). In contrast, the best relative root elongation of the plant was found in 30 mg Zn / L at pH 6 and the best relative stem elongation and fresh weight increase was found at pH 7. While the organs where the plant accumulated the maximum zinc were root> stem> leaf, respectively, TF = 0.15 and BCF = 1.14 were calculated.