Full TGIF Record # 302238
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Web URL(s):https://scisoc.confex.com/scisoc/2018am/meetingapp.cgi/Paper/113695
    Last checked: 11/19/2018
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Publication Type:
i
Report
Content Type:Abstract or Summary only
Author(s):Raudenbush, Zane; Elmore, Matthew T.; Nangle, Edward; Tuck, Daniel P.
Author Affiliation:Raudenbush: Ohio State University, Wooster, OH; Elmore and Tuck: Department of Plant Biology, Rutgers University, New Brunswick, NJ; Nangle: The Ohio State University, Wooster, OH
Title:Effects of ethephon application timing and pigment-containing products on annual bluegrass seedhead suppression in putting greens
Section:C05 turfgrass science
Other records with the "C05 turfgrass science" Section

Turfgrass science - II poster
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Meeting Info.:Baltimore, Maryland: November 4-7, 2018
Source:ASA, CSSA and SSSA International Annual Meetings. 2018, p. 113695.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Canadian Society of Agronomy]
# of Pages:1
Abstract/Contents:"Researchers have reported improved annual bluegrass (Poa annua L.) seedhead suppression in putting greens when a single, early winter application of ethephon is made in conjunction with spring-applied programs. Additionally, many superintendents are spraying pigment-containing products in the early winter, but no research is available to determine if these products affect ethephon activity. Therefore, the objective this research was to determine the effect of ethephon application timing on annual bluegrass seedhead production when applied in conjunction with a pigment-containing product. In 2016, treatments were applied to annual bluegrass putting greens in Wooster, OH and New Brunswick, NJ. Treatments were evaluated using a randomized complete-block design with a 3 (application timing) × 2 (product; ethephon or ethephon + Civitas) factorial treatment structure. Application timings included early winter, spring, and early winter + spring. Ethephon was applied as a single application at 2.28 kg ha-1 in early winter and two sequential applications 21 days apart in spring at 2.28 kg ha-1. Civitas was tank-mixed with ethephon at 51 L product ha-1 at the early winter and first spring application. Treatments were applied to 1 m × 1.8 m plots using a CO2 powered sprayer with a spray volume of 411 L ha-1. A 0.9 m × 0.9 m rating grid with 100 intersects assessed seedhead cover in April 2017 by recording a count when an inflorescence was detected underneath an intersection; percent seedhead suppression was calculated by comparing treated plots to untreated plots. Location was not significant (P<0.05), so data were pooled from Ohio and New Jersey. Early winter + spring applied products resulted in 65% seedhead suppression, and a single early winter application suppressed seedheads by 48%, which was significantly higher than sequential spring applications. Including Civitas as a tank-mix partner significantly improved seedhead suppression at all application timings."
Language:English
References:0
Note:This item is an abstract only!
"332"
"Poster Number: 1231"
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Raudenbush, Z., M. T. Elmore, E. Nangle, and D. P. Tuck. 2018. Effects of ethephon application timing and pigment-containing products on annual bluegrass seedhead suppression in putting greens. Agron. Abr. p. 113695.
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    Last checked: 11/19/2018
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