The effect of competing ions on thallium and selenium accumulation and distribution in durum wheat and spring canola grown in soil

dc.contributor.advisorHale, Beverley A.
dc.contributor.advisorBerkelaar, Edward J.
dc.contributor.authorKikkert, Julie Dorothea
dc.date.accessioned2020-12-08T16:40:25Z
dc.date.available2020-12-08T16:40:25Z
dc.date.copyright2010
dc.degree.departmentDepartment of Land Resource Scienceen_US
dc.degree.grantorUniversity of Guelphen_US
dc.degree.nameMaster of Scienceen_US
dc.description.abstractThis thesis investigates the competitive relationships between two elemental pairs in a plant - soil system: thallium (Tl) and potassium (K), and selenium (Se) and sulphur (S). It considers the influence of these competing ions and, in the case of Se the exposure to selenate or selenite, on the accumulation and distribution of Tl or Se in spring canola and durum wheat grown in a sandy-clay soil. In general, it was observed that accumulation of Tl or Se was greatest in canola. Thallium (I) sorption to soil constituents and its accumulation and distribution in both plant species was influenced by K. Selenium accumulation and distribution in both plant species was influenced by the concentration and speciation of Se. Selenium sorption to soil and accumulation and distribution in wheat plants was not influenced by S while Se accumulation and distribution in canola was influenced by S. Applications to environmental risk assessment were considered.
dc.identifier.urihttps://hdl.handle.net/10214/23331
dc.language.isoen
dc.publisherUniversity of Guelphen_US
dc.rights.licenseAll items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated.
dc.subjectcompetitive relationship
dc.subjectplant
dc.subjectsoil system
dc.subjectthallium
dc.subjectpotassium
dc.subjectselenium
dc.subjectsulphur
dc.subjectspring canola
dc.subjectdurum wheat
dc.subjectsorption
dc.subjectsoil constituents
dc.subjectaccumulation
dc.subjectdistribution
dc.titleThe effect of competing ions on thallium and selenium accumulation and distribution in durum wheat and spring canola grown in soil
dc.typeThesisen_US

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