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University of Guelph

1. Flude, Corey. Preventing Loss of Winter Hardiness in Turfgrass on Golf Greens and Fairways in the Late Winter .

Degree: 2019, University of Guelph

Plant growth regulators (PGRs) such as gibberellic acid (GA3), abscisic acid (ABA) and trinexapac-ethyl (TE) can be applied to turfgrasses to promote winter hardiness. Lethal temperature of 50% mortality measurements revealed that application of these PGRs had no effect on the acclimation status of creeping bentgrass and annual bluegrass for the months of January, February and March. Fall PGR application decreased acclimation status for annual bluegrass, whereas ABA and GA3 applications increased acclimation status for creeping bentgrass in April. Treatment with exogeneous ABA increased endogenous ABA levels in annual bluegrass. A simulated warming event in a growth chamber in late winter resulted in a loss of acclimation status for both grasses compared to a control. GA3 increased annual bluegrass photosynthesis and TE decreased creeping bentgrass photosynthesis during the warming event. PGRs are beneficial for maintaining the acclimation status of creeping bentgrass, while reducing the acclimation status of annual bluegrass. Advisors/Committee Members: Lyons, Eric (advisor).

Subjects/Keywords: plant growth regulators; winter hardiness; de-acclimation; LT50; cold tolerance; winter survival

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Flude, C. (2019). Preventing Loss of Winter Hardiness in Turfgrass on Golf Greens and Fairways in the Late Winter . (Thesis). University of Guelph. Retrieved from https://atrium.lib.uoguelph.ca/xmlui/handle/10214/16852

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16th Edition):

Flude, Corey. “Preventing Loss of Winter Hardiness in Turfgrass on Golf Greens and Fairways in the Late Winter .” 2019. Thesis, University of Guelph. Accessed August 24, 2019. https://atrium.lib.uoguelph.ca/xmlui/handle/10214/16852.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7th Edition):

Flude, Corey. “Preventing Loss of Winter Hardiness in Turfgrass on Golf Greens and Fairways in the Late Winter .” 2019. Web. 24 Aug 2019.

Vancouver:

Flude C. Preventing Loss of Winter Hardiness in Turfgrass on Golf Greens and Fairways in the Late Winter . [Internet] [Thesis]. University of Guelph; 2019. [cited 2019 Aug 24]. Available from: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/16852.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Flude C. Preventing Loss of Winter Hardiness in Turfgrass on Golf Greens and Fairways in the Late Winter . [Thesis]. University of Guelph; 2019. Available from: https://atrium.lib.uoguelph.ca/xmlui/handle/10214/16852

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

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