An Ex Situ Salinity Restoration Assessment Using Legume, Saltbush, and Grass in Australian Soil. Issue 7 (7th March 2016)

• Record Type: Journal Article
• Authors: Bhuiyan, Mohammad S. I.; Raman, Anantanarayanan; Hodgkins, Dennis; Mitchell, David; Nicol, Helen
• Is Part Of: Clean. Volume 44:Issue 7(2016:Jul.)
• Page Start: 840
• Page End: 848
• Publication Date: 2016-03-07
• Subjects: Bioaccumulation -- Phytoextraction -- Phytostabilization -- Salt tolerating plants -- Translocation; Water quality -- Periodicals; Water -- Pollution -- Periodicals; Pollution -- Periodicals; Bioremediation -- Periodicals; Sewage -- Periodicals; Water chemistry -- Periodicals; 333.7205
• DOI: 10.1002/clen.201500214
• Languages: English
• ISSNs: 1863-0650

Abstract

Abstract : Shoot and root water content, shoot/root biomass ratio, and plant height were measured in Melilotus siculus (Fabaceae), Tecticornia pergranulata (Amaranthaceae: Chenopodiodeae), and Thinopyrum ponticum (Poaceae) to determine their growth performance in a glasshouse – pot trial using salinity levels of 0.0, 2.5, and 5.0 dS m −1 . The following indices, total‐ion accumulation (TIA), bioaccumulation factor (BF), translocation factor (TF), and bioconcentration factor (BCF) of Na + and Cl − were also measured enabling the evaluation of the remediation capacity of these plants. With increasing salinity in soil, total Na + and Cl − accumulation increased in the tested plants in the following order: T. pergranulata > M. siculus > T. ponticum. T. pergranulata had the maximal phytoextraction capacity of Na + and Cl − . The BF and BCF values of Na + and Cl − were >1 in the plants tested in different salinity treatments. The TF value of Cl − was >1 for these tested plants, whereas the TF value of Na + was >1 in T. pergranulata and M. siculus and it <1 in T. ponticum . T. pergranulata and M. siculus performed the best, accumulating more of Na + and Cl −, and therefore they appear to be the candidates‐of‐choice for phytoremediation of saline sites in central western New South Wales, Australia. Abstract : With increasing salinity in soil, total salt‐ion accumulation increases in saltbush maximally, followed by legume and grass, under glasshouse conditions. Cl − moves more rapidly than Na + indicating that Cl − accumulation is greater. The saltbush and legume perform best, accumulating more Na + and Cl − . Both could be used in environmentally friendly remediation of saline sites in New South Wales.