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Asian Journal of Plant Sciences
Year: 2009  |  Volume: 8  |  Issue: 7  |  Page No.: 500 - 504

Sodium, Potassium and Sulphate Composition in Some Seaweeds Occurring along the Coast of Gulf of Mannar, India

S.R. Sivakumar and K. Arunkumar    

Abstract: Minerals such as sodium (Na+), potassium (K+) and sulphate were analyzed in red, brown and green abundant seaweeds found along the Coast of Gulf of Mannar, India, during July 2005. A high mean amount of Na+ was recorded in Chlorophyceae followed by Rhodophyceae and Phaeophyceae. The mean value of K+ in the brown and red algae were higher when compared to green seaweeds. A less Na+/K+ ratio indicated high K+ and low Na+ in brown and red algae and a high Na+/K+ ratio in green seaweeds indicated high Na+ and low K+. The sulphate content was variable in the algae studied; the maximum concentration was found in red alga Grateloupia lithophila (162.8 mg g-1 alga dry wt.) and minimum in brown alga Chnoospora implexa (0.88 mg g-1 alga dry wt.).

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