Full TGIF Record # 70970
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Publication Type:
Content Type:Abstract or Summary only
Author(s):Gelernter, W. D.; Stowell, L. J.
Author Affiliation:PACE Turfgrass Research Institute
Title:Annual bluegrass seedhead management using ethephon and ethephon plus trinexapac-ethyl on golf course greens and fairways
Section:Turfgrass science
Other records with the "Turfgrass science" Section
Meeting Info.:Minneapolis, MN: November 5-9, 2000
Source:2000 Annual Meeting Abstracts [ASA/CSSA/SSSA]. 2000, p. 155.
Publishing Information:[Madison, WI]: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America
# of Pages:1
Keywords:TIC Keywords: Poa annua control; Seedhead inhibition; Ethephon; Trinexapac-ethyl; Growth regulators; Golf courses; Golf greens; Golf fairways; Comparisons; Bent versus poa
Abstract/Contents:"The ability of the growth regulator ethephon (Proxy) to manage turf vegetative growth and Poa annua seedheads was evaluated on fairways and on greens. In 8 trials conducted on Southern California golf courses, a single application of ethephon at the recommended rate (3.8 kg/ha) had a significant impact on Poa seedheads, with suppression levels ranging from 69% to 86% when compared against the non-treated check. Suppression levels reached their peak 3-6 weeks after application, but significant effects were seen even 8 weeks after application. No phytotoxicity was observed on any turf species. However, ethephon applications resulted in little or no reduction in turf vegetative growth. In contrast, the growth regulator trinexapac-ethyl (Primo) resulted in significant growth regulation of turfgrass that ranged from 64%-74%, but had little or no impact on Poa seedhead suppression. Combinations of ethephon (3.8 kg /ha) and trinexapac-ethyl (0.05 kg/ha) applied to bentgrass/Poa greens capitalized on the best attributes of both products, resulting in high levels of seedhead suppression (85%-97%), as well as denser, darker, slower growing turf."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Gelernter, W. D., and L. J. Stowell. 2000. Annual bluegrass seedhead management using ethephon and ethephon plus trinexapac-ethyl on golf course greens and fairways. Annu. Meet. Abstr. p. 155.
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