Full TGIF Record # 178563
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Web URL(s):https://www.plantmanagementnetwork.org/pub/trial/PDMR/reports/2011/T040.pdf
    Last checked: 11/14/2016
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Publication Type:
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Report
Author(s):Ebdon, J. S.
Author Affiliation:Dept. of Plant, Soil and Insect Sciences, University of Massachusetts, Amherst, MA
Title:Resistance of Kentucky bluegrass cultivars to necrotic ring spot, 2009
Section:Turfgrass
Other records with the "Turfgrass" Section
Source:PDMR: Plant Disease Management Reports. Vol. 5, 2011, p. T040.
Publishing Information:St. Paul, MN: American Phytopathological Society
# of Pages:3
Keywords:TIC Keywords: Cultivar evaluation; Disease resistance; National Turfgrass Evaluation Program; Necrotic ring spot; Ophiosphaerella korrae; Poa pratensis
Abstract/Contents:Cultivars were evaluated as part of the 2000 National Turfgrass Evaluation Program (NTEP) Kentucky bluegrass test near Amherst, MA. The trial consisted of 173 commercially available and experimental cultivars seeded to 3 ft x 6 ft plots in Oct 2000. The experimental design was a randomized complete block with three replications. Plots were mowed at 1.25-in. height of cut. All plots received 3.25 lb nitrogen (N)/1,000 sq ft (0.75 lb N in late May and 1.25 lb N in early Sep and late Nov), no irrigation or fungicides were applied. Plots were rated for necrotic ring spot (Ophiospharella korrae) 30 Jul 09. Identity of the disease was confirmed by the University of Massachusetts Turfgrass Disease Diagnosis Laboratory. Necrotic ring spot was evaluated using a visual rating of incidence on a percent of plot basis. Data were analyzed using ANOVA and means comparisons performed using Fisher's Protected LSD (P=0.05). Significant differences among cultivars were detected in necrotic ring spot severity. Cultivars ranged from 0 to 25% disease. Numerous commercially available cultivars exhibited no disease including Awesome, Barrister, Bedazzled, Beyond, Bluestone, Brilliant, Casablanca, Eagleton, Excursion, Ginney, Glenmont, Goldstar, Lakeshore, Liberator, Moonlight, NuGlade, Odyssey, Princeton 105, Quantum leap, Serene, Showcase and Wellington. Seventeen percent of all entries evaluated exhibited only trace amounts of disease (1%). Approximately 1/3 of the NTEP roster exhibited objectionable disease (>5%). Commercially available cultivars including Blue Knight, Bodacious, Chelsea and Lily were statistically among the most susceptible to necrotic ring spot with disease ratings ranging from 17 to 23 percent.
Language:English
References:0
Note:This item is as abstract and tables only!
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ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Ebdon, J. S. 2011. Resistance of Kentucky bluegrass cultivars to necrotic ring spot, 2009. PDMR: Plant Dis. Manage. Rep. 5:p. T040.
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https://www.plantmanagementnetwork.org/pub/trial/PDMR/reports/2011/T040.pdf
    Last checked: 11/14/2016
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    Access conditions: Item is within a limited-access website
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