Full TGIF Record # 30626
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Publication Type:
i
Report
Author(s):Johnson, B. Jack
Author Affiliation:Department of Agronomy, Georgia Station, Griffin, GA
Title:Frequency of mowing and plant growth regulators to suppress common bermudagrass
Source:Journal of Turfgrass Management. Vol. 1, No. 1, 1994, p. 61-71.
# of Pages:11
Publishing Information:Binghamton, NY: Food Products Press (Haworth Press)
Keywords:TIC Keywords: Cynodon dactylon; Quality; Seedhead inhibition; Growth retardation; Application timing; Application rates; Growth regulators; Flurprimidol; Mefluidide; Paclobutrazol; Imazethapyr; Mowing frequency
Abstract/Contents:"A field experiment was conducted to evaluate plant growth regulators (PGR's) and mowing frequency for suppression of vegetative growth and seedhead development of common bermudagrass [Cynodon dactylon (L.) Pers.]. Imazethapyr {2-[4,5-dihydro-4-methyl-4-(1-methylethyl-5-oxo-1H- imidazol-2-yl]-5-ethyl-3-pyridinecarboxylic acid} applied at 0.06 kg ha-1 in each of two applications suppressed vegetative growth for five weeks when compared with untreated check. Turf treated with imazethapyr required two mowings during the next two weeks during 1990 and one mowing during the same period during 1991. Imazethapyr at 0.03 kg ha-1 applied in each of two applications plus one mowing at six weeks effectively suppressed common bermudagrass seedheads for seven weeks. Imazethapyr reduced turf quality within three weeks after treatment but the turf recovered by five weeks with no stand loss. Mefluidide {N-[2,3-dimethyl-5-[[(trifluoromethyl)sulfonyl]amino] phenyl]acetamide} applied at 0.6 kg ha-1 in each of two applications plus 2 to 3 mowings resulted in acceptable seedhead suppression of common bermudagrass while turf mowed three times without mefluidide did not. Neither fluprimidol {alpha-(1-methylethyl)-alpha-[4-(trifluoromethoxy)phenyl]- 5-pyrimidine-methanol} (one application at 1.1 kg ha-1 or two applications at 0.8 kg ha-1) nor paclobutrazol {(+/-)-(R*R*)Beta-[4-chlorophenyl)methyl]-alpha-(1,1- dimethylethyl)-1H-1,2,4-triazole-1-ethanol} (1.1 kg ha-1 applied in one or two applications) suppressed seedheads of common bermudagrass and 3 to 4 timely mowings were required to maintain a high quality turf during seven-week period after PGR treatment. Imazethapyr suppressed vegetative growth and seedheads of common bermudagrass more than mefluidide, fluriprimidol, flurprimidol plus mefluidide, and paclobutrazol. Turf treated with imazethapyr required two less mowings than other PGRs to maintain a high quality turf during the seven-week period following treatments."
Language:English
References:10
Note:Table
Graphs
See Also:Other items relating to: PGRS
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Johnson, B. J. 1994. Frequency of mowing and plant growth regulators to suppress common bermudagrass. J. Turfgrass Manage. 1(1):p. 61-71.
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http://www.tandfonline.com/doi/abs/10.1300/J099v01n01_05#.UqnF0OKQO8E
    Last checked: Item not verified
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
    Notes: Abstract and Guide page only
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MSU catalog number: SB 433 .J68
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