Int. J. Biosci.3(10), 233-239, October 2013
This study was designed to investigate the capability of Sorghum plant to purify the cadmium-contaminated soil in the presence of mycorrhiza fungi. This study was performed in Farm of Agriculture Research of Saveh Islamic Azad University as a factorial experiment based on randomized complete blocks design with three replications. Seeds were cultivated in certain pots. In this study, two factors were considered including: the concentrations of cadmium nitrate at four levels (0, 100, 200 and 300 ppm) which was considered as the first factor, the contamination as well as the lack of contamination with mycorrhiza fungi (Glomus Intraradices) which was considered as the second factor. The results showed that the presence of mycorrhiza fungi has increased the concentration of cadmium in all plant organs. It was also observed that increasing the concentration of cadmium in the soil has increased the cadmium concentrations in various organs of the sorghum plant. The mycorrhiza inoculation at all levels of the cadmium intake has significantly increased the cadmium concentration in different organs of the sorghum plant. According to this study, the presence of mycorrhiza fungi has increased the absorption of cadmium toxic elements. It also resulted in purification of the soil by sorghum.
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