PHYTOREMEDIATION OF A Pb-POLLUTED SOIL USING MUSTARD PLANT SPECIES | ||||
| Fayoum Journal of Agricultural Research and Development | ||||
| Article 1, Volume 25, Issue 1, January 2011, Page 1-9 PDF (352.92 K) | ||||
| Document Type: Research articles. | ||||
| DOI: 10.21608/fjard.2011.195027 | ||||
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| Authors | ||||
| Maher A. Abdel-Hamid1; Mostafa M.A. Abouzied1; Mohamed A. Abu-Sinna2; Gehan H. Abd El-Azziz2 | ||||
| 1Soil Sci. Dept., Fac. of Agric., Cairo University, Giza, Egypt | ||||
| 2Soils, Water and Environ. Res. Inst., (SWERI) Agric. Res. Center, Giza, Egypt | ||||
| Abstract | ||||
| A greenhouse pot experiment was conducted to clarify the ability of both White mustard (Sinapis alba L.) and Indian mustard (Brassica juncos L.) as a phytoremediation for a polluted Pb-soil. Plants were grown on a soil treated with Pb at rates 154, 450, 750, and 950 mg kg-1 soil. Soil pots were daily irrigated with tap water. The plants allowed to growing for four months. One week before harvest, ethylene-diamine-tetraacetic acid (EDTA) as a chelated agent was applied at a rate of 0.5 g kg-1 soil for 50 % of the experimental pots. Either EDTA-treated or untreated plants were harvested 127 days after planting. The obtained results showed that white mustard and Indian mustard plants grown in Pb contaminated soil can tolerate and accumulate significant amounts of lead (Pb) in their roots and shoots. The results suggest that adding EDTA can promote the bioavailability of Pb in the soil and increase the propensity for Pb-uptake by plants into roots and shoots. It could be concluded that White mustard and Indian mustard can be grown under elevated Pb conditions due to their suitability as a potential crop species for phytoremediation of polluted soils with heavy metals. | ||||
| Keywords | ||||
| Lead; phytoremediation; phytoextraction; EDTA chelate | ||||
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