Abstract

Mercury is a hazardous pollutant in the environment and can be introduced into the environment in many forms. Experiments were performed to study the toxic effects of various mercury compounds, viz. inorganic, monovalent mercurous chloride, divalent mercuric chloride and organic compounds mercuric acetate and phenyl mercuric acetate on percentage germination, pigment concentrations, root‐shoot lengths and fresh weight‐dry weight of seven days old seedlings of barley. The phenyl mercuric acetate was found to be the most toxic, followed by mercuric acetate and mercuric chloride, while the mercurous chloride was found to be least toxic.

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