Full TGIF Record # 317091
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Web URL(s):https://scisoc.confex.com/scisoc/2021am/meetingapp.cgi/Paper/135664
    Last checked: 03/30/2022
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Publication Type:
Content Type:Abstract or Summary only
Author(s):Schmid, Charles J.; Braithwaite, Emily; McDonald, Brian W.; Kowalewski, Alexander R.
Author Affiliation:Schmid, McDonald, and Kowalewski: Horticulture, Oregon State University, Corvallis, OR; Braithwaite: Oregon State University, Corvallis, OR
Title:Influence of plant growth regulators on core cultivation recovery time of annual bluegrass putting green turf
Section:C05 turfgrass science
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Golf turf management poster (includes student competition)
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Meeting Info.:Salt Lake City, Utah: November 7-10, 2021
Source:ASA, CSSA and SSSA International Annual Meetings. 2021, p. 1221.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America]
# of Pages:1
Abstract/Contents:"Plant growth regulators are commonly used on golf courses to manage vertical growth and to improve turf stand density. On golf courses, core cultivation is one of the most disruptive events to occur, but no research currently exists that demonstrates the effect of PGRs on recovery from core cultivation. A field study was initiated in March 2021 on a 1-yr old annual bluegrass putting green with the objectives to 1) determine the effect of trinexapac-ethyl (TE) application timing on core cultivation recovery, 2) determine if ethephon treatments applied in the spring for annual bluegrass seedhead control influence cultivation recovery time, 3) evaluate the effect of gibberellic acid (GA3) on core cultivation recovery. Treatments were arranged as a 3 x 2 factorial with four replications. Trinexapac-ethyl was applied up to either 400, 200, and 10 growing degree days (GDD) prior to cultivation, in combination with ethephon or no ethephon treatments (spring only). Gibberellic acid (RyzUp) applied at 1.4 and 2.8 g GA3 ha-1 and a non-treated control were included for comparison. Trial area was cored in the spring and fall with 1.3 cm inside diameter hollow tines in a 5.1 x 5.1 cm spacing. Following core cultivation, digital images were collected daily using a lightbox to determine percent cover over time. Results from the spring of 2021 indicate that the main effect of ethephon treatments had the greatest effect on cultivation recovery time, with plots receiving ethephon recovering quicker than plots that received no ethephon. The main effect of TE timing was only significant on one date in the spring of 2021, where the last app of TE applied 400 GDD prior to cultivation had greater percent recovery 5-d after cultivation compared to TE applied 10 GDD prior to cultivation."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Schmid, C. J., E. Braithwaite, B. W. McDonald, and A. R. Kowalewski. 2021. Influence of plant growth regulators on core cultivation recovery time of annual bluegrass putting green turf. Agron. Abr. p. 1221.
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