Full TGIF Record # 225759
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Author(s):Gover, Arthur E.; Kuhns, Larry J.; Lyman, Gregory T.
Author Affiliation:Gover: Project Associate; Lyman: Former Project Assistant, Agronomy; Kuhns: Professor, Ornamental Horticulture
Title:Evaluation of turf varieties and mixtures for low maintenance applications, University Park, PA, 1990
Section:1990 results: Roadside vegetation management studies
Other records with the "1990 results: Roadside vegetation management studies" Section
Source:Turfgrass Research Results 1990/1991 [Penn State]. 1991, p. 49-51.
# of Pages:3
Publishing Information:[University Park, Pennsylvania]: [Pennsylvania State University, College of Agriculture, Agronomy Dept., Entomology Dept., Horticulture Dept., Plant Pathology Dept.]
Abstract/Contents:"Eleven single species treatments, for mixtures, and an unseeded check (Table 1) were established September 16, 1988, in University Park, Centre County, at the Landscape Management Research Center of the Pennsylvania State University. Site preparation consisted of treating the entire study area with 3 lb ae/acre of glyphosate, mowing the killed vegetation, and scarifying the seed bed with a pto-powered turf overseeder. The seed treatments were drop seeded on 12 by 30 ft plots, arranged in a randomized complete block design with three replications. Half of each plot was mowed for a field day in June, and the entire area was mowed with a Carter forage harvester July 6, 1989, for yield measurements. Beginning in 1990, half of each plot was mowed three times, and the other half was unmowed. Mowing dates were May 22, July 25, and October 16. Incorporation of mowing into the study changed the experimental design to a randomized complete block with a split-block treatment arrangement. Visual ratings of percent turf and weed cover were taken May 8, July 25, and October 16, 1990. When the rating data subjected to analysis of variance, the interaction of species and mowing was not significant for turf or weed cover on July 25 (p=0.79, 0.92, respectively), and was significant at the p=0.10 level for October 16. Results for May 8 and July 25 are reported by species in Table 2, and the results for species*mow treatment for October 16 are reported in Table 3. Mowing did not significantly affect turf or weed cover July 25 or October 16. When rated May 8, the only species offering poor performance was 'Barclay' perennial ryegrass, which seemed to suffer from extensive winter-kill, and was rated at 37 percent cover (Table 1). All other species were rated at 82 percent or greater for turf cover, including the perennial ryegrass blend, which showed no signs of winter stand reduction. The 'D.O.T.' plots consisted entirely of fine fescues, with no signs of the original 'Barclay' or 'Highland' colonial bentgrass content. In the perennial ryegrass/tall fescue plots the tall fescue component was dominant, and almost no perennial ryegrass was observed in the plots seeded to 70% tall fescue/30% perennial ryegrass. The 'Kentucky 31' and 'Transition Blend' tall fescue plots were indistinguishable in appearance under these conditions. The ratings for July 25 were similar to May 8, as all treatments provided better than 90 percent cover, except 'Barclay' perennial ryegrass, which was rated at 53 percent turf cover, and 58 percent weed cover. The predominant weed in the 'Barclay' and sweet vernal grass plots was quackgrass (Agropyron repens). There were observable differences in species behavior under different mowing treatments for the October 16 ratings. Canada bluegrass plots were rated higher for turf cover in unmowed plots, while the perennial ryegrass blend, 'Barclay' perennial ryegrass, and sweet vernal grass were rated higher in the mowed plots. All other treatments provided nearly 100 percent turf cover under both mowing conditions (Table 2)."
Note:This item is an abstract and tables only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Gover, A. E., L. J. Kuhns, and G. T. Lyman. 1991. Evaluation of turf varieties and mixtures for low maintenance applications, University Park, PA, 1990. Turfgrass Research Results 1990/1991 [Penn State]. p. 49-51.
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