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dc.contributor.authorRavindran, B.
dc.contributor.authorKumari, Sheena K.
dc.contributor.authorStenström, Thor-Axel
dc.contributor.authorBux, Faizal
dc.identifier.citationRavindran, B. et al. 2016. Evaluation of phytotoxicity effect on selected crops using treated and untreated wastewater from different configurative domestic wastewater plants. Environmental Technology. 37(14): 1782-1789.en_US
dc.description.abstractThis study investigated the phytotoxicity effect of untreated and treated wastewater collected from two different configurations of domestic wastewater treatment plants in South Africa. The phytotoxicity effect on vegetable seed growth was studied in terms of germination index (GI), relative seed germination (RSG) and relative root elongation (RRE) using four commercial crop varieties, viz., tomato (Lycopersicon esculentum), radish (Raphanus sativus), carrot (Daucus carota) and onion (Allium cepa). According to phyototoxicity limits, 80% germination and above is regarded as non-toxic and less than 50% GI is regarded as highly toxic and not suitable for agricultural purposes. In our study, seeds were irrigated with concentrations of 25%, 50%, 75%, 100% of treated effluent (TE) and untreated effluent (UTE). The TE results were best with the highest GI (%) recorded as tomato, 177; carrot, 158.5; onion, 132; and lettuce, 124. The results of this study indicate that TE showed no phytotoxicty effects and recorded above 80% GI. The UTE irrigated crops reached a GI of only 50% and above which is clear evidence of the beneficial effect of waste water treatment. The overall results confirmed that treated wastewater has a beneficial effect on agricultural crops and can be used as a liquid fertilizer.en_US
dc.format.extent8 pen_US
dc.publisherTaylor and francis Onlineen_US
dc.subjectWastewater treatment plantsen_US
dc.subjectCrop seedsen_US
dc.subjectGermination indexen_US
dc.subjectPhytotoxicity effecten_US
dc.subjectTreated wastewateren_US
dc.titleEvaluation of phytotoxicity effect on selected crops using treated and untreated wastewater from different configurative domestic wastewater plantsen_US
dc.description.availabilityCopyright: 2016. Taylor & Francis Online. Due to copyright restrictions, only the abstract is available. For access to the full text item, please consult the publisher's website. The definitive version of the work is published in Environmental Technology, Vol 37, No 14, pp 1782-1789.en_US
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Appears in Collections:Research Publications (Water and Wastewater Technology)
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