Phytoremediation Potential of Kenaf (Hibiscus cannabinus L.), Mesta (Hibiscus sabdariffa L.), and Jute (Corchorus capsularis L.) in Arsenic-contaminated Soil
2016
Nizam, M.U., Patuakhali Science and Technology University, Patuakhali, Bangladesh | Wahid-U-Zzaman, M., Bangladesh Agricultural University, Mymensingh, Bangladesh | Rahman, M.M., Bangladesh Agricultural University, Mymensingh, Bangladesh | Kim, J.E., Kyungpook National University, Daegu, Republic of Korea
BACKGROUND: Arsenic (As)-contaminated groundwater used for long-term irrigation has emerged as a serious problem by adding As to soils. Phytoremediation potential of fiber crops viz., kenaf (Hibiscus cannabinus L.), mesta (Hibiscus sabdariffa L.), and jute (Corchorus capsularis L.) was studied to clean up As-contaminated soil. METHODS AND RESULTS: Varieties of three fiber crops were selected in this study. Seeds of kenaf, mesta, and jute varieties were germinated in As-contaminated soil. Uptake of As by shoot was significantly higher than that by root in the contaminated soil. In As-contaminated soil, kenaf and mesta varieties accumulated more As, than did jute varieties. In the plant parts above ground, mainly the shoots, the highest As absorption was recorded in kenaf cv. HC-3, followed by kenaf cv. HC-95. Kenaf varieties produced more biomass. In terms of higher plant biomass production, and As absorption, kenaf varieties showed considerable potential to remediate As-contaminated soil. CONCLUSION: The overall As absorption and phytoremediation potentiality of plant varieties were in the order of kenaf cv. HC-3 greater than kenaf cv. HC-95 greater than mesta cv. Samu-93 greater than jute cv. CVE-3 greater than jute cv. BJC-7370. All varieties of kenaf, mesta, and jute could be considered for an appropriate green plant-based remediation technology in As-contaminated soil.
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