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| Publication Type:
| Refereed |
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| Author(s): | Johnson, B. Jack |
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| Author Affiliation: | Department of Crop & Soil Sciences, University of Georgia, Griffin, Georgia |
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| Title: | Response of tall fescue to plant growth regulators and mowing frequencies |
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| Source: | Journal of Environmental Horticulture. Vol. 11, No. 4, December 1993, p. 163-167. |
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| Publishing Information: | Washington, DC: Horticultural Research Institute |
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| # of Pages: | 5 |
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| Keywords: | TIC Keywords: Festuca arundinacea; Responses; Plant growth regulators; Mowing frequency; Trinexapac-ethyl; Height; Application rates; Quality evaluation; Mefluidide; Flurprimidol; Paclobutrazol; Density
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| Abstract/Contents: | "Tall fescue (Festuca arundinace Schred.) produces rapid growth during a 6- to 8-week period in early spring. A field experiment was initiated on tall fescue to determine the number of mowings that can be eliminated by the use of plant growth regulators (PGRs) during this rapid growth period. Primo (CGA 163935) applied at 0.4 kg/ha (0.36 lb/A) mid-March suppressed vegetative growth for 3 to 5 weeks and eliminated 3 mowings during the first 5 weeks after treatment during 1990 and 1991 and eliminated 2 mowings during 1993. Primo (CGA 163935) applied at this rate did not reduce the quality and density of tall fescue below the acceptable level. Primo (CGA 163935) applied at 0.8 kg/ha (0.72 lb/A) eliminated 1 additional mowing during the 5 weeks after treatment in 2 of 3 years when compared with the 0.4 kg/ha (0.36 lb/A) rate. However, turf quality was consistently lower for 6 to 7 weeks after the tall fescue was treated with the 0.8 kg/ha (0.72 lb/A) rate. Embark (mefluidide) applied at 0.42 kg/ha (0.38 lb/A) performed similarly to Primo (CGA 163935), except the quality and density of the turf were reduced below the acceptable level at various times during the study. There was no advantage in the use of Cutless (flurprimidol) plus Embark (mefluidide) at 1.1 + 0.14 kg/ha (1.0 + 0.12 lb/A) or paclobutrazole (PP 333) plus Embark (mefluidide) at 1.1 + 0.14 kg/ha (1.0 + 0.12 lb/A) on suppressing vegetative growth of tall fescue when compared with Embark (mefluidide) at 0.42 kg/ha (0.38 lb/A) alone. Neither Limit (amidochlor) at 2.8 kg/ha (2.5 lb/A) nor paclobutrazol (PP 333) at 1.1 kg/ha (1.0 lb/A) suppressed vegetative growth as effectively as Primo (CGA 163935) or Embark (mefluidide)." |
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| Language: | English |
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| References: | 9 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Johnson, B. J. 1993. Response of tall fescue to plant growth regulators and mowing frequencies. J. Environ. Hortic. 11(4):p. 163-167. |
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