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Effect of selenium on the growth of Lemna minor
Authors:Gabrielle Pistone  Graeme Allinson  Frank Stagnitti  Sonia Colville
Institution:School of Ecology and Environment , Deakin University , Warrnambool, Vic, 3280, Australia
Abstract:The effect of selenium on the vegetative reproduction of cultured Lemna minor was investigated. Cultures were grown for 28 days at a temperature of 23 ± 3°C and under a constant (24 h) light cycle. Growth was monitored every seven days. The growth of L. minor was inhibited at high concentrations (>5mg/L Se]), but stimulated at low concentrations (0.2—2mg/L Se]). This stimulation of growth at low selenium concentrations has significant implications for the use of selenium enriched superphosphate fertilisers on selenium deficient pastures.
Keywords:Selenium  Lemna minor  vegetative growth  pollution  superphosphate fertiliser
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