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Effects of biodegradable chelants on the root morphology and physiological-biochemical characteristics of Amaranthus hybridus L. in cadmium contaminated soils DEVELOPING CROP PLANTS FOR PRODUCTION OF BIODEGRADABLE PLASTICS BY TRANSGENIC APPROACHES Application of natural biodegradable polysaccharide in oral colon-specific drug delivery preparation The Status and Trend of Natural Fiber/Biodegradable Plastic Bio-Composites Preparation and characterization of biodegradable polymer-coated urea