Full TGIF Record # 225854
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Author(s):Gover, Arthur E.; Watschke, Thomas L.; Batey, David A.
Author Affiliation:Gover: Project Associate; Batey: Research Technologist, Agronomy; Kuhns: Professor, Ornamental Horticulture
Title:Evaluation of PGR combinations on tall fescue, 1991
Section:1991 results: Roadside vegetation management studies
Other records with the "1991 results: Roadside vegetation management studies" Section
Source:Turfgrass Research Results 1990/1991 [Penn State]. 1991, p. 137-138.
# of Pages:2
Publishing Information:[University Park, Pennsylvania]: [Pennsylvania State University, College of Agriculture, Agronomy Dept., Entomology Dept., Horticulture Dept., Plant Pathology Dept.]
Abstract/Contents:"As part of a cooperative research project with Pennsylvania Department of Transportation, an experiment evaluating the activity of different plant growth regulator (PGR) treatments on unmowed tall fescue (Festuca arundincea) was established May 3, 1991, at the Landscape Management Research Center, University Park, PA. The treatments included mefluidide alone, mefluidide plus a premix of imazethapyr and imazapyr, mefluidide plus chlorsulfuron, three combinations of mefluidide plus metsulfuron methyl, imazethapyr and imazapyr plus chlorsulfuron, and an untreated check. All PGR treatments included dicamba at 0.5 lb ae/acre. The treatments were applied with a CO2 powered hand-held boom delivering 17 GPA at 30 psi using Spraying Systems 8002 flat fan spray tips. Plots were 6 by 15 ft, arranged in randomized complete block design with three replications. Visual ratings of turf color and quality were taken May 21. Canopy height was estimated on June 5 by measuring the height at which a 1 ft diameter by 0.25 in thick wooden disk was suspended after being dropped from a height of 3 ft. Clipping yields were taken June 13 on a dry weight basis, and July 16 on a fresh weight basis. The plots were not irrigated prior to June 13, and showed considerable drought stress. The plots were mowed at 3.5 in, then irrigated for three weeks at 0.75 in water/week prior to the July 16 clipping collection. The data were subjected to analysis of variance and means were separated using fisher's protected l.s.d. test. Due the severe drought and shallow soil in the study site, the turf showed a lack of vigor and differences between the treatments and the untreated check were not as pronounced as expected. There were very few seedheads produced in the check. Treatment effects were not significant for turf color and quality ratings. Canopy height for the untreated check was significantly higher than all PGR treatments, and canopy height for mefluidide alone was greater than all other PGR treatments. There was no significant treatment effect on clipping yields for June 13 or July 16."
Note:This item is an abstract and table only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Gover, A. E., T. L. Watschke, and D. A. Batey. 1991. Evaluation of PGR combinations on tall fescue, 1991. Turfgrass Research Results 1990/1991 [Penn State]. p. 137-138.
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