Full TGIF Record # 310295
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Web URL(s):https://scisoc.confex.com/scisoc/2019am/meetingapp.cgi/Paper/119525
    Last checked: 02/03/2020
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Publication Type:
Content Type:Abstract or Summary only
Author(s):Booth, Jordan; Zhang, Xunzhong; McCall, David S.; Goatley, James M.; Askew, Shawn D.
Author Affiliation:Booth: Plant Pathology, Physiology, and Weed Science, Virginia Tech, Moseley, VA; Zhang, McCall, and Goatley: School of Plant and Environmental Sciences, Virginia Tech, Blacksburg, VA; Askew: Plant Pathology, Physiology, and Weed Science, Virginia Tech, Blacksburg, VA
Title:Evaluation of late-season and winter applications of trinexapac-ethyl on ultradwarf bermudagrass putting greens
Section:C05 turfgrass science
Other records with the "C05 turfgrass science" Section

Golf turf management poster (includes student competition)
Other records with the "Golf turf management poster (includes student competition)" Section
Meeting Info.:San Antonio, Texas: November 10-13, 2019
Source:ASA, CSSA and SSSA International Annual Meetings. 2019, p. 119525.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America]
# of Pages:1
Keywords:TIC Keywords: Application timing; Cynodon dactylon x Cynodon transvaalensis; Dwarf bermudagrasses; Golf greens; Growth regulator evaluation; Spring green-up; Trinexapac-ethyl
Cultivar Names:TifEagle; G12
Abstract/Contents:"Trinexapac-ethyl (TE) is the most utilized plant growth regulator (PGR) in the turfgrass industry. Ultradwarf bermudagrasses (UDB) [Cynodon dactylon (L.) Pers. x C. transvaalensis Burtt-Davy] are the most utilized turfgrass on golf course putting greens in the southern U.S. Improvements in management and cold tolerance of UDB cultivars have allowed golf courses to grow these grasses further into the transition zone but there is still a high risk of significant winter injury. Plant growth regulators are often utilized on UDB putting greens during warm periods of active growth to improve turfgrass uniformity, quality of cut, and golf ball roll by suppressing vegetative growth. We hypothesize that late-season and/or winter TE applications may improve the cold tolerance of UDBs by reducing unnecessary vertical growth leading into dormancy and by the prevention of an early, artificial green-up during short, warm spells in the winter. Four replications of seven treatments were arranged in a completely randomized design in Richmond, Virginia during the winter of 2018-2019 and repeated across two 'Tif-Eagle' and two 'G12' UDB putting greens. Treatments began when 'traditional' TE apps would normally end in the fall. Half of the treated plots received applications until winter dormancy and the other half received both fall and winter treatments. Turfgrass quality, color and green-up data were recorded and analyzed. Trinexapac-ethyl applications had a significant impact on turfgrass color and spring green-up, suggesting that TE prevented an 'artificial' dormancy break in treated plots. Spring green-up was delayed in plots receiving TE applications with winter applications having a greater impact than fall applications. However, there was no damage from TE applications and turfgrass quality was excellent in the spring. These data suggest that winter applications of TE may be useful for suppressing UDB growth early in the spring without a negative impact on winter survival."
Note:This item is an abstract only!
"Poster #1569"
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Booth, J., X. Zhang, D. S. McCall, J. M. Goatley, and S. D. Askew. 2019. Evaluation of late-season and winter applications of trinexapac-ethyl on ultradwarf bermudagrass putting greens. Agron. Abr. p. 119525.
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