Suzan Othman Omar Mame and Hussein Saber Mohammed Ali Al-Rashedy
Abstract
This research was conducted at the university of Mosul / college of education for pure science / biology department, to detect the effect of ascorbic acid on the legume plant (Vicia faba) grown in a soil polluted with deferent concentration of heavy elements. The results showed that spraying the vegetative parts of the plant with ascorbic acid at 600 mg/l concentration and for once leads to an increase in carotene concentration and a decrease in proline concentration in the tissues of the leaves of legume plant in comparison with the control treatment as they reached (0.198) mg/g. Fresh weight and (0.058)μ / g fresh weight respectively. As it was noted that treatment of soil with element Ni at a concentration of 50 mg/kg soil leads to a decrease in the concentration of carotene in comparison to the control treatment as it reached (0.097) mg/g. Fresh weight, and an increase in proline when treated with element Pb at a concentration of 550 mg/kg soil as it reached (0.157) μ/g in comparison to with the control and other treatments.