Full TGIF Record # 32190
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Web URL(s):http://www.apsnet.org/publications/phytopathology/backissues/Documents/1994Articles/phyto84n10_1061.pdf#page=53
    Last checked: 10/16/2015
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Publication Type:
i
Report
Content Type:Abstract or Summary only
Author(s):Giesler, L. J.; Yuen, G. Y.
Author Affiliation:Department of Plant Pathology, University of Nebraska-Lincoln
Title:A non-fluorescent Pseudomonas sp. antagonistic to brown patch
Meeting Info.:1994 APS Annual Meeting, August 6-10, 1994, Albuquerque, New Mexico
Source:Phytopathology. Vol. 84, No. 10, October 1994, p. 1113.
Publishing Information:St. Paul, MN: American Phytopathological Society
# of Pages:1
Keywords:TIC Keywords: Pseudomonas; Brown patch; Rhizoctonia solani; Antagonism; Bacteria; Festuca arundinacea; Disease evaluation; Biological control
Cultivar Names:Fawn; Eldorado; Emperor
Abstract/Contents:"Bacterial antagonists effective against brown patch disease caused by Rhizoctonia solani have not been reported previously. We identified a non-fluorescent Pseudomonas sp. (C3) as a potential bacterial antagonist of R. solani for use in turfgrass. In two bioassays, one involving grass blades in petri dishes and the other involving seedlings in a growth chamber, C3 exhibited the highest level of antagonism to R. solani out of 160 bacterial isolates. In a 1-yr.-old sward of tall fescue 'Fawn', C3 consistently reduced brown patch lesion development (P=0.05). In 2-yr.-old swards of tall fescue 'Fawn', 'El Dorado', and 'Emperor', C3 consistently inhibited R. solani in 'El Dorado' (P=0.05), but did not suppress disease in 'Emperor' or 'Fawn'. Disease ratings in 'El Dorado' C3-treated plots ranged from 2.8 to 4.7 on a 0-10 scale as compared to ratings of 3.8 to 5.2 in R. solani inoculated control plots. C3 maintained stable foliage populations of 6 log cfu/g tissue throughout field experiments; however, on grass blades in the laboratory, 9 log cfu/g was needed for antagonism, thus explaining the low level of field efficacy. Results show the need for a screening system which identifies bacterial antagonist effective at field levels."
Language:English
References:0
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Giesler, L. J., and G. Y. Yuen. 1994. A non-fluorescent Pseudomonas sp. antagonistic to brown patch. Phytopathology. 84(10):p. 1113.
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http://www.apsnet.org/publications/phytopathology/backissues/Documents/1994Articles/phyto84n10_1061.pdf#page=53
    Last checked: 10/16/2015
    Requires: PDF Reader
    Notes: Item is within a single large file
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