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Abstract
This research was carried out under greenhouse conditions to examine the Cd accumulation in the organs of some sorghum varieties at the end of cadmium treatment (0, 25, 50, 75, 100, and 125 mg kg−1). At the end of a 130-day growing period, the Cd concentrations accumulated in the roots, stems, leaves, and grains of the plants were examined. In the 3 cultivars used in the study, the highest Cd concentration was found in the root of the plants. Unlike Akdari variety, higher cadmium concentrations were detected in the leaves of Beydari and Ogretmenoglu than their stems. While the Cd concentration in the grains of Akdari variety was 4.97 mg kg−1, it was measured as 0.17 mg kg−1 in Beydari and 0.78 mg kg−1 in Ogretmenoglu. The grain/root translocation factor (TF) was determined as 0.48 in Akdari, 0.01 in Beydari, and 0.15 in Ogretmenoglu. It was found that Akdari variety carried more Cd to its grains; so, this variety is not suitable as it poses a risk in human and animal nutrition. On the other hand the Beydari variety was found to transfer the least Cd, which makes it more suitable. Since Ogretmenoglu removed more Cd from the soil than other varieties, it is promising in terms of phytoremediation.
Graphical Abstract
In the grains of Akdari variety, Cd concentration was measured to be approximately 30-fold more than Beydari variety and about 6-fold more than Ogretmenoglu variety. Since Akdari was found to carry more Cd to its grains, it is not appropriate to use this variety in human and animal nutrition in areas of Cd contamination.
It is more appropriate to use Beydari in such areas, since it was found to transfer the least Cd to its grains.
Ogretmenoglu removed more Cd from the soil than other varieties, and this is promising in terms of phytoremediation.