Full TGIF Record # 66482
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Web URL(s):https://journals.ashs.org/hortsci/view/journals/hortsci/35/4/article-p755.xml?rskey=QP6oC5
    Last checked: 11/14/2019
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Author(s):Fagerness, Matthew J.; Yelverton, Fred H.; Isgrigg, John III; Cooper, Richard J.
Author Affiliation:Fagerness: Graduate Research Assistant; Yelverton: Associate Professor; Cooper: Professor, Department of Crop Science, North Carolina State University, Raleigh, NC; and Isgrigg: Research Agronomist, Zeneca Corp., Des Moines, IA
Title:Plant growth regulators and mowing height affect ball roll and quality of creeping bentgrass putting greens
Section:Turf management
Other records with the "Turf management" Section
Source:HortScience. Vol. 35, No. 4, July 2000, p. 755-759.
# of Pages:5
Publishing Information:Alexandria, VA: American Society for Horticultural Science
Keywords:TIC Keywords: Growth regulators; Mowing height; Ball roll distance; Quality; Golf greens; Agrostis stolonifera; Diurnal variation; Trinexapac-ethyl; Paclobutrazol; Shoot density; Seasonal variation; Application timing
Cultivar Names:Penncross
Abstract/Contents:"Questions exist as to whether growth-inhibiting chemicals mimic the effects of reduced mowing heights on putting green ball roll. An experiment was initiated during Spring 1997 to investigate ball roll and visual quality parameters of putting greens maintained a 3.2, 4.0, or 4.8 mm with plant growth regulators (PGR) treatments applied monthly over the course of 1 year. Additional experiments were conducted during Fall 1995 and 1996 and Spring 1996 to investigate diurnal PGR effects on ball roll. All experiments were conducted on pure stands of 'Penncross' creeping bentgrass (Agrostis palustris Huds). Treatments included trinexapac-ethyl and paclobutrazol, both inhibitors of gibberellin biosynthesis. In the one-year experiment, mowing height was inversely related to ball roll. However, compromises in turfgrass visual quality and shoot density in 'Penncross' turf mowed at 3.2 mm makes this a questionable mowing height in areas with severe summer conditions. Ball roll during summer months was reduced by PGRs, suggesting that PGRs have little potential as alternatives to decreasing mowing height for increased ball roll. Paclobutrazol reduced turfgrass quality and shoot density during summer months, suggesting that it be used with caution. Other PGRs, particularly trinexapac-ethyl at 0.05 kg·ha⁻¹a.i., increased afternoon ball roll by as much as 5% to 10% in diurnal experiments. Use of PGRs on creeping bentgrass putting greens may therefore produce short-lived increases in ball roll with subtle to negative effects on bentgrass growth over more extended periods of time. Chemical names used: 4-(cyclopropyl-α-hydroxymethylene)-3,5-dioxocyclohexane carboxylic acid ethylester (trinexapac-ethyl); (+/-)-(R*,R*)-ß-[(4-chloro-phenyl)methyl]-α-(1,1dime< >thylethyl)-1H-1,2,4-triazole-1-ethanol (paclobutrazol)."
See Also:Other items relating to: P G Rs 1997-2006
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Fagerness, M. J., F. H. Yelverton, J. III Isgrigg, and R. J. Cooper. 2000. Plant growth regulators and mowing height affect ball roll and quality of creeping bentgrass putting greens. HortScience. 35(4):p. 755-759.
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    Last checked: 11/14/2019
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MSU catalog number: SB 1 .H64
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