Full TGIF Record # 294407
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Web URL(s):https://scisoc.confex.com/crops/2017am/webprogram/Paper105566.html
    Last checked: 03/07/2018
Publication Type:
i
Report
Content Type:Abstract or Summary only
Author(s):Flores, David; Bigelow, Cale; Atkinson, Jeff
Author Affiliation:Flores: Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN; Bigelow: Purdue University, West Lafayette, IN; Atkinson: SePRO Corporation, Carmel, IN
Title:Creeping bentgrass water use in response to plant growth regulators and evapotranspiration replacement
Section:C05 Turfgrass Science
Other records with the "C05 Turfgrass Science" Section

Sports and golf turf management poster (includes student competition)
Other records with the "Sports and golf turf management poster (includes student competition)" Section
Meeting Info.:Tampa, Florida: October 22-25, 2017
Source:ASA, CSSA and SSSA International Annual Meetings. 2017, p. 105566.
Publishing Information:[Milwaukee, Wisconsin]: [American Society of Agronomy and the Entomological Society of America]
# of Pages:1
Keywords:TIC Keywords: Agrostis stolonifera; Deficit irrigation; Evapotranspiration; Golf course irrigation; Golf fairways; Irrigation rates; Percent living ground cover; Plant growth regulators; Visual evaluation
Abstract/Contents:"Golf course managers are seeking ways to reduce maintenance inputs like supplemental irrigation. Fairways represent the largest acreage of intensively managed turf, with water often applied for aesthetics rather than plant health or playability. Studies were conducted on creeping bentgrass (Agrostis stolonifera L.:CBG) to measure water use under deficit irrigation and determine if plant growth regulators (PGRs) could reduce water needs. In a greenhouse study, CBG was grown in a 30-cm deep sand/porous ceramic media and maintained at 12 mm; water use, visual quality and green turf cover were measured for CBG subjected to deficit irrigation based on evapotranspiration (ET) rates of 40, 60 and 80% with or without two preformulated PGR products: flurprimidol (FL)+trinexapac-ethyl (TE) or FL+TE+paclobutrazol (PB). Water use was measured for 77 and 109 days with daily use rates ranging from ~4.0 to 4.7 mm for non-PGR treatments, ~3.8 to 4.3 mm for those treated with FL+TE, and ~3.8 to 4.2 mm for those treated with FL+TE+PB. Turf treated with FL+TE+PB across all ET replacement rates had higher quality compared to the untreated and those treated with only FL+TE. Green cover was greatest in the 40 and 60% replacement rates for FL+TE+PB, while FL+TE slightly outperformed the FL+TE+PB treatment at 80% ET. FL+TE+PB at 60% ET replacement maintained highest quality and green cover at the lowest water use rate. Select greenhouse treatments were repeated in the field on a silt-loam soil at supplemental irrigation amounts of 80, 65, and 50% ET with and without PGRs. Visual appearance was greatest for the 80% ET replacement, but quality decreased only slightly at the 65 and 50% ET replacement rates with and without PGR treatments. These studies demonstrate that supplemental irrigation needs for fairway CBG could be substantially reduced with a combination of deficit irrigation and PGRs."
Language:English
References:0
Note:"Poster #916"
This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Flores, D., C. Bigelow, and J. Atkinson. 2017. Creeping bentgrass water use in response to plant growth regulators and evapotranspiration replacement. Agron. Abr. p. 105566.
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    Last checked: 03/07/2018
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