Study on Phytoremediation Potential of Sesuvium portulacastrum on Remediating Salt Affected Soil

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Study on Phytoremediation Potential of Sesuvium portulacastrum on Remediating Salt Affected Soil

March 13, 2021 Environment and Earth Sciences 0

The salt hyperaccumulating plant Sesuvium portulacastrum is a pioneer plant species used for desalination and phytoremediation. Abiotic constraints such as salinity and drought are tolerated by the plant. It can be used to remediate and restore salt-contaminated soils polluted by industrial effluents because it develops in extreme salinity. The textile industry has the greatest effect on the environment in terms of primary water use and waste water discharge among the major water-demanding industries. Textile effluent contains a number of organic chemicals with high salinity, colour, and biodegradability.
Salinity has a detrimental effect on plant growth and has an impact on ecosystem biological stability. The capacity of Sesuvium portulacastrum collected from Pitchavaram in Chidambaram District of Tamil Nadu, India for the remediation of dye and textile polluted areas in Andipalayam, Mangalam, and Palayakottai villages of Tirupur District of Tamil Nadu was studied up to 70 days after planting in Andipalayam, Mangalam, and Palayakottai villages of Tirupur District of Tamil Nadu (DAP). The soil analysis showed that the initial EC of the soil was 13.04 dSm-1, which was reduced to 7.37 dSm-1 30 days after planting (DAP) and 5.34 dSm-1 30 days after planting (DAP) (60DAP). In 5000 mg/kg of Na enriched soils, plant shoot and root lengths were increased by 74 percent, and biomass was increased by 94 percent. The electrical conductivity and sodium content of Sesuvium-grown soil enriched with various concentrations of Na both decreased. In only 90 days, 77.8% of the sodium in the soil was depleted. Environmentally, the plant’s ability to live under various abiotic stress conditions such as salinity, drought, and heavy metal accumulation has been evaluated, making Sesuvium a useful species as a heavy metal contamination indicator and for predicting soil salinity.

Author (s) Details

Jayashree Ramaswamy
Department of Environmental Sciences, Tamil Nadu Agricultural University, Coimbatore-641 003, India.

Kalaiselvi Periasamy
Department of Environmental Sciences, Tamil Nadu Agricultural University, Coimbatore-641 003, India

Bhagyasree Venugopal
Department of Environmental Sciences, Tamil Nadu Agricultural University, Coimbatore-641 003, India.

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