Phytoremediation potential of Lactura sativa Var. romaine in Cadmium nitrate treated soil in De La Salle University-Dasmariñas, Dasmariñas, Cavite.

Cabrera, Rowena P. and Tapanan, Shellah May T. (2014) Phytoremediation potential of Lactura sativa Var. romaine in Cadmium nitrate treated soil in De La Salle University-Dasmariñas, Dasmariñas, Cavite. Undergraduate thesis, De La Salle University-Dasmarinas.

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Abstract

The study was conducted to determine the phytoremediation ability of Lactuca sativa, in different concentrations of cadmium nitrate, on its growth, number of leaves and the maximum concentration that the plants were able to uptake. The experimental study used four treatments with three replicates each, namely T0=untreated, T1=25mg/kg, T2=50mg/kg, T3=75mg/kg. This was performed at the DLSU- Dasmariñas Integrated Farm. The plants were observed in five consecutive weeks in terms of their growth and number of leaves. By getting the final weight minus the dried weight of the plant, the biomass was obtained. Results showed that the higher amounts of cadmium nitrate caused the plant to grow slower thus resulting in a lower biomass. Dried samples were digested in acidic mixture of HNO3:HClO4 and the samples were analyzed using Atomic Absorption Spectrometry (AAS) at DLSU-Manila. Cadmium analysis using AAS revealed that the higher the concentration of cadmium nitrate in plant samples, the higher its absorbance. One-way ANOVA was used as a tool for statistical analysis, which showed that the number of leaves and the absorbance of the lettuce have a significance difference in the cadmium concentrations. No significant difference was noted in the growth of the plants. The study concludes that Lactuca sativa has a phytoremediation potential in treated cadmium nitrate soil.

Item Type: Thesis (Undergraduate)
Additional Information: BIO 1086 2009
Subjects: Q Science > QD Chemistry
Q Science > QH Natural history > QH301 Biology
Users: College of Science and Computer Studies > Biological Science
Depositing User: Ms. Bibiana Alcantara
Date Deposited: 04 Dec 2015 02:32
Last Modified: 04 Dec 2015 02:32
URI: http://thesis.dlsud.edu.ph/id/eprint/253

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