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| Web URL(s): | http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2005.95.6.S168#page=3
Last checked: 10/20/2015
Requires: PDF REader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Ma, B.;
Uddin, W. |
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| Author Affiliation: | Plant Pathology Department, Pennyslvania State University, University Park, Pennsylvania |
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| Title: | Evaluation of isolates of Magnaporthe grisea from perennial ryegrass turf for sensitivity to azoxystrobin |
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| Section: | Abstracts of Presentations at the 2004 Northeastern Division Meeting
Other records with the "Abstracts of Presentations at the 2004 Northeastern Division Meeting" Section
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| Source: | Phytopathology. Vol. 95, No. 6, June Supplement 2005, p. S170. |
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| Publishing Information: | St. Paul, MN: American Phytopathological Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Chemical sensitivity; Lolium perenne; Azoxystrobin; Pyricularia grisea; Gray leaf spot; Fungicide resistance
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| Abstract/Contents: | "One hundred and twenty isolates of Magnaporthe grisea, the causal agent of gray leaf spot of perennial ryegrass (Lolium perenne L.), collected between 1995 and 2004 from golf courses in several regions of the U.S., were evaluated for azoxystrobin sensitivity. The sensitivity of the isolates from golf courses with a history of azoxystrobin use was compared to that of several baseline isolates. Media components, incubation time, and temperature were optimized for a modified in vitro spore germination assay to determine the sensitivity of the isolates. The coefficient of variation of 50% effective concentrations (EC50 value) were 0.006-0.477 (mean of 0.14) for five repeated assays. The EC50 values of baseline isolates ranged from 0.002-0.089 microgram/ml, and no significant differences were observed between baseline isolates and other isolates tested. The results indicate that a shift in sensitivity to azoxystrobin might not have occurred in the M. grisea population of these golf courses. Further survey will be conducted to monitor the sensitivity of M. grisea population to strobilurins in golf courses in the northeastern U.S." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Ma, B., and W. Uddin. 2005. Evaluation of isolates of Magnaporthe grisea from perennial ryegrass turf for sensitivity to azoxystrobin. Phytopathology. 95(6):p. S170. |
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| Web URL(s):
http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2005.95.6.S168#page=3
Last checked: 10/20/2015
Requires: PDF REader
Notes: Item is within a single large file |
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MSU catalog number: SB 599 .P48 |
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