Full TGIF Record # 324870
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Web URL(s):https://scisoc.confex.com/scisoc/2022am/meetingapp.cgi/Paper/142980
    Last checked: 01/24/2023
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Publication Type:
Content Type:Abstract or Summary only
Author(s):Orlinski, Pawel; Pudzianowska, Marta; Baird, James H.
Author Affiliation:Orlinski: Presenting Author; Pudzianowska and Baird: University of Califorina-Riverside
Title:Bermudagrass seedhead suppression using plant growth regulators and herbicides
Section:Golf turf management oral: cultural practices, physiology, and water (includes student competition)
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C05 turfgrass science
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Meeting Info.:Baltimore, Maryland: November 6-9, 2022
Source:ASA, CSSA, SSSA International Annual Meeting. 2022, p. 142980.
Publishing Information:[Madison, Wisconsin]: [American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America]
# of Pages:1
Abstract/Contents:"Like much of the southern U.S., bermudagrass is the "go to" warm-season turfgrass species for golf course fairways, rough, and tees in southern and central California, and many golf courses in northern California are converting from cool-season turf to bermudagrass in response to worsening drought, diminishing water availability, and rising costs of water for turf irrigation. Despite many advantages over cool-season species, bermudagrass tends to produce seedheads or inflorescences throughout spring which can be very unsightly and disrupt playability. The objectives of this research were to evaluate optimal rates and timing of various plant growth regulators (PGRs) and herbicides for seedhead suppression. The study was replicated on three golf courses in California with hybrid bermudagrass 'Santa Ana' fairways as this longstanding cultivar is still widely popular in California and it is known for prolific flowering following spring green-up. Two factors and their interaction were tested in this study for each PGR and herbicide: dose and time of initial application based on photoperiod. Treatments were applied using a half step log sprayer. Five PGRs (trinexapac-ethyl, prohexadione calcium, flurprimidol, paclobutrazol and ethephon) and two herbicides (imazapic and trifloxysulfuron-sodium) were tested using 7-8 rates over three photoperiods in the fall (11h, 10.5h and 10h) and four photoperiods in the spring (13h, 13.5h, 14h and 14.5h). Preliminary results revealed that the best seedhead suppression was achieved from spring applications of ethephon or imazapic, although imazapic caused unacceptable turf injury at higher application rates."
This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Orlinski, P., M. Pudzianowska, and J. H. Baird. 2022. Bermudagrass seedhead suppression using plant growth regulators and herbicides. Agron. Abr. p. 142980.
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    Last checked: 01/24/2023
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