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Arsenic Distribution in Green Bean Yield Irrigated by Waste Water

Ayesha Hafeez

The objective of the study is to investigate the effect of different arsenic concentrations on some physiological parameters of bean (Phaseolus vulgaris) seedlings, grown in sand with nutrient solution in a climatic box was treated with 0, 5, 10, 15 and 20 ppm Arsenic in the form sodium arsenate Na3AsO4 (pH 5.5). After 3 months of As treatment, the various growth parameters as well as changes in leaf gas-exchange, water potential, chlorophyll and protein contents, peroxidase activity and lipid peroxidation in roots was recorded. Results clearly show that with increase in arsenic concentration growth activities of bean plant suppress.