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dc.contributor.advisorSmeda, R. J. (Reid John), 1960-eng
dc.contributor.authorDierking, Johnathan P.eng
dc.date.issued2011eng
dc.date.submitted2011 Springeng
dc.descriptionThe entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract, appears in the public.pdf file.eng
dc.descriptionTitle from PDF of title page (University of Missouri--Columbia, viewed on July 1, 2011).eng
dc.descriptionThesis advisor: Reid J. Smeda.eng
dc.descriptionIncludes bibliographical references.eng
dc.descriptionM.S. University of Missouri--Columbia 2011.eng
dc.description.abstractCommon ragweed and Common waterhemp are native, summer annual weeds distributed widely throughout the United States. Both weed species have developed resistance to the broad-spectrum herbicide glyphosate. Research was conducted to determine the movement of glyphosate resistance through pollen within a population of common ragweed and evaluate the release of glyphosate from glyphosate-resistant and -susceptible common waterhemp. Results revealed that glyphosate-resistance could move throughout a susceptible common ragweed population up to 91 meters away from a source of resistant pollen. The frequency of resistant progeny from susceptible plants was greatest close to resistant source plants, with 48 percent of the groups at 1 meter away producing resistant progeny. Glyphosate resistance is likely to spread to adjacent areas via pollen, which is an important dispersal mechanism common ragweed. Greenhouse studies determined the survival of glyphosate-resistant versus -susceptible waterhemp was not based upon exudation of glyphosate from roots.eng
dc.format.extentv, 68 pageseng
dc.identifier.urihttp://hdl.handle.net/10355/11165
dc.languageEnglisheng
dc.publisherUniversity of Missouri-Columbiaeng
dc.relation.ispartofcommunityUniversity of Missouri--Columbia. Graduate School. Theses and Dissertationseng
dc.rightsOpenAccess.eng
dc.rights.licenseThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License.
dc.subject.lcshGlyphosateeng
dc.subject.lcshHerbicide-resistant cropseng
dc.subject.lcshAmbrosia artemisiifoliaeng
dc.subject.lcshAmaranthseng
dc.titleGlyphosate resistance : pollen movement within a common ragweed (Ambrosia artemisiifolia L.) population and herbicide release from common waterhemp (Amaranthus rudis sauer) plantseng
dc.typeThesiseng
thesis.degree.disciplinePlant, insect and microbial sciences (MU)eng
thesis.degree.grantorUniversity of Missouri--Columbiaeng
thesis.degree.levelMasterseng
thesis.degree.nameM.S.eng


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