Uptake and distribution of heavy metals on the root and shoot of Coleus aromaticus L. (Oregano) grown in artificially contaminated soils.

Herejias, Kristel Ann M. and Matias, Jobell. (2014) Uptake and distribution of heavy metals on the root and shoot of Coleus aromaticus L. (Oregano) grown in artificially contaminated soils. Undergraduate thesis, De La Salle University-Dasmarinas.

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Abstract

The phytoremediation ability of Coleus aromaticus L. (oregano) in soils contaminated with low and high levels of chromium (125 mg/kg and 250 mg/kg) and manganese (150 mg/kg and 300 mg/kg) were determined. The experimental study used three treatments for each of the heavy metals with three replicates. The plants were observed and grown for five consecutive weeks with which height and dry mass of the plants were measured. Results revealed that oregano was tolerant only in low and high concentrations of manganese and in low concentration of chromium as shown in the index of tolerance higher than 50%. There was significant decrease in the final heights of those treated with high levels of metal contamination as compared with the control. Oregano was able to uptake both chromium and manganese although it showed early aging when treated with high concentration of chromium because of the metal’s toxicity. In this study, the plants were able to uptake higher amount of heavy metals in the shoot system. The study concludes that oregano can be a good phytoremediant for both chromium and manganese.

Item Type: Thesis (Undergraduate)
Additional Information: BIO 1089 2010
Subjects: Q Science > QH Natural history > QH301 Biology
Q Science > QK Botany
Users: College of Science and Computer Studies > Biological Science
Depositing User: Ms. Bibiana Alcantara
Date Deposited: 04 Dec 2015 06:44
Last Modified: 04 Dec 2015 06:44
URI: http://thesis.dlsud.edu.ph/id/eprint/256

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