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Roles of super absorbent polymer and ascorbic acid inmitigating deleterious effects of cadmiumin wheat

Hamid Reza, TohidiMoghadam

A greenhouse experiment was conducted to explore the role of ascorbic acid foliar application and soil applied super absorbent in mitigating adverse effects of cadmium in terms of some biochemical parameters in wheat. The experimental design was a completely randomized design, arranged in factorial, consisting of three levels of super absorbent polymer (0, 4 and 8 g kg-1 soil) and three levels of ascorbic acid (0, 50 and 100 mM) with four replicates. Cadmium contamination caused a significant increase in accumulation of cadmium in the leaves and seeds, antioxidant enzymes activity and lipid peroxidation. By contrast, cadmium contamination decreased seed weight and chlorophyll content in wheat plants. Super absorbent increased seed weight, chlorophyll and ascorbic acid content while it reduced cadmium accumulation in the leaves and seeds, antioxidant enzymes activity and lipid peroxidation. Similar results were found when ascorbic acid was applied.