Abstract
One of the many new risks that effecting the early societies is the continuous exposure to pollutants, namely, heavy metals. Mercury (Hg) is perhaps the metal which has attracted the most attention in soil science and plant nutrition due to its potential toxicity to ecosystem. In the present study, the toxic effect of mercury was determined by morphological and physiological parameter on plant Phaseolus vulgaris. In germination studies, parameters such as germination percentage, root length, and shoot length were decreased with increasing dose of mercuric chloride (HgCl2) concentrations. Mercury also showed inhibition property towards physiological parameters such as chlorophyll, protein, nitrate, and endogenous pool. Higher concentrations of HgCl2 were found to be more toxic.
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