Main content

Preventing Loss of Winter Hardiness in Turfgrass on Golf Greens and Fairways in the Late Winter

Show full item record

Title: Preventing Loss of Winter Hardiness in Turfgrass on Golf Greens and Fairways in the Late Winter
Author: Flude, Corey
Department: Department of Plant Agriculture
Program: Plant Agriculture
Advisor: Lyons, Eric
Abstract: 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.
Date: 2019-08
Rights: Attribution-NonCommercial-NoDerivatives 4.0 International
Terms of Use: All items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated.

Files in this item

Files Size Format View Description
Flude_Corey_201908_MSc.pdf 982.0Kb PDF View/Open Thesis

This item appears in the following Collection(s)

Show full item record

Attribution-NonCommercial-NoDerivatives 4.0 International Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 International