Nowadays, heavy metal contamination is being increased and it can affect the growth of plants, animals and human health. Phytoremediation technology using plants to extract heavy metals from the soil as well as water. The effective results of a phytoextraction method depend on sufficient plant yield and accumulate high amount of metals in plant shoots and/or roots. The present study was carried out to examine the effects of heavy metal on weed plants like Ipomea carnea and Jatropha gossypiifolia. Stem cutting of these plants was exposed to four concentrations (0, 5, 10, 15 ppm) of potassium dichromate. Chromium accumulation capacity of those plants was compared in a pot and hydroponic culture methods. Total chlorophyll content was reduced gradually while increasing chromium (IV) concentrations.

Keywords : Contamination, heavy metals, Phytoremediation, metal accumulation and plant growth.