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Paper Information

Journal:   RENEWABLE NATURAL RESOURCES RESEARCH   fall 2017-winter 2018 , Volume 8 , Number 2 (SERIAL NUMBER 28) ; Page(s) 43 To 55.

Zinc Phytoremediation by Desert Shrub Acacia victoriae Benth

* Gorgan University of Agriculture Sciences and Natural Resources, Gorgan, Iran
In this study was purposed to investigate the absorption of zinc by Acacia victoriae. The one year old shrubs were randomly selected in 3 replications and exposed by Zinc-sulfate in four concentration (0, 50, 250, 500 mg/l). Some of the morphological and physiological properties such as plant height, collar diameter, leaf number and area, green and dry weight of plant, tolerance index, grade of growth inhibition and chlorophyll content as well as bioaccumulations of Zn in different plant tissues were evaluated. Results showed that the properties were significantly affected by Zn. However, the effect of high concentration of Zn slight had as well as tree on effects series any have didn't that, properties the in decreasethe signs of toxicity with zinc, addition In. observed not was the amounts of accumulation of Zn in the roots were higher than aboveground tissues, so that about 80% of Zn (4794. 5 mg/kg), more than 13% of Zn (797. 9 mg/kg), and about 7% of Zn (488. 35 mg/kg) were accumulated in the root tissues, the stem tissues, and the leaves, respectively. The bioaccumulation and transfer factors were also measured to higher one and lower one, respectively. Generally, the result demonstrated that the Acacia victoriae could be affected as a phytoremediation in reduction of soil pollution to Zn.
Keyword(s): Heavy metals,Phytoremediation,Pollution,Tolerance index,Zinc
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