Mullika Teerakun and Alissara Reungsang

pp. 967 - 973

Abstract

This study searched for plant species suitable for accumulating carbofuran residue in rice field soil.
Three groups of plant, i.e. grass crops, upland crops, and vegetable crops, were grown in 8 inches diameter
plastic pots filled with soil containing 5 mg/kg carbofuran. Parts of plants (stems and leaves, roots, fruits)
were harvested at day 120 and analyzed for carbofuran residue using HPLC. The results indicated that
Helianthus annuus L. (sunflower) was the most suitable species for phytoremediation of carbofuran residue
in rice field soil because it highly accumulated carbofuran up to 93.4 µg/kg dry weight in its stems and leaves.
In addition, H. annuus L. (sunflower) could tolerate carbofuran since it showed similar physical appearance
(circumference and height) to control not receiving carbofuran.