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Effects of different dosages and types of antibiotic exposure on the growth of pakchoi under hydroponic condition. (A) Plant height; (B) Root length; (C) Fresh biomass. Values are mean ± SD (n = 10). Different letters on the top of the error bars indicate statistically difference among the treatments (p < 0.05). TC, tetracycline; CPL, cephalexin; SMX, sulfamethoxazole; MIC, minimum inhibitory concentration; SD, standard deviation.
