Hajo E. Elhassan1, Emaa M. Sabah Elkheir2, Eiman E. E. Diab3, Gammaa A. M. Osman4
Abstract— The aim of this work was to evaluate the ability of maize seeds (Zea mays) to grow and remove the lead from contaminated soil as well as to study the effect of salicylic acid on lead uptake efficiency. Seeds of maize were grown in soil spiked with different levels of lead (0, 1000, 2000, 4000, 8000 mg Pb /kg soil). After two weeks of sowing two levels of salicylic acid (0.0 and 1000 ppm) were applied to the seedling. The growth parameters were measured three times at 30 45 and 60 days after sowing, while the fresh and dry weights, of shoot and root and lead accumulation in shoot and root were done after 60 days of sowing. The results showed that, the increase in lead concentration caused a reduction in the most growth parameters. On the other hand the lead accumulation in shoot and roots was increased by increasing lead concentrations. Also the result indicated that the addition of salicylic acid has appositive influence on the all growth parameter as well as lead uptake by plant.
Keywords— Salicylic acid, maize, lead, phytoremediation.
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