Exploring the effects of hormone manipulation on the cold tolerance of cool season turfgrasses and cereals

dc.contributor.advisorLyons, Eric M.
dc.contributor.advisorFalk, Duane
dc.contributor.authorKerr, Robert A.
dc.date.accessioned2014-09-08T14:02:07Z
dc.date.available2014-09-08T14:02:07Z
dc.date.copyrightAug-14
dc.date.created2014-07-30
dc.date.issued2014-09-08
dc.degree.departmentDepartment of Plant Agricultureen_US
dc.degree.departmentGuelph Turfgrass Instituteen_US
dc.degree.grantorUniversity of Guelphen_US
dc.degree.nameMaster of Scienceen_US
dc.degree.programmePlant Agricultureen_US
dc.description.abstractTrinexapac-ethyl (TE), product Primo Maxx, is a gibberellic acid (GA) inhibitor produced by Syngenta. A controlled acclimation study and two field studies were performed, one on AB and CB, and another on cereal crops with known genetic differences in cold tolerance. The results of the field study and the controlled acclimation study on the turfgrass species showed an increased concentration of high molecular weight (HMW) fructan for AB compared to CB. Results from the controlled acclimation study indicated that AB photosynthesis rates were higher than CB 20°C and 10°C. Carbohydrate concentration increased following five weeks of acclimation for both AB and CB in the controlled acclimation study. Both of the field studies had a significant date effect for carbohydrate status, with an increased concentration in HMW fructan in the fall when compared to the spring.en_US
dc.description.sponsorshipCanadian Turfgrass Research Foundation
dc.identifier.urihttp://hdl.handle.net/10214/8433
dc.language.isoenen_US
dc.publisherUniversity of Guelphen_US
dc.rightsAttribution-NonCommercial-NoDerivs 2.5 Canada*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/2.5/ca/*
dc.subjectPrimo Maxxen_US
dc.subjectGibberelic acid inhibitoren_US
dc.subjectSyngentaen_US
dc.subjectTurfgrassesen_US
dc.subjectCerealsen_US
dc.titleExploring the effects of hormone manipulation on the cold tolerance of cool season turfgrasses and cerealsen_US
dc.typeThesisen_US

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