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| Web URL(s): | http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2010.100.6.S1#page=137
Last checked: 11/29/2010
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Wilson, C.;
Kerns, J.;
Smith, D. |
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| Author Affiliation: | Wilson and Kerns: University of Wisconsin-Madison, Madison, WI; Smith: Oklahoma State University, Stillwater, OK |
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| Title: | Effects of temperature on growth of Sclerotinia homoeocarpa |
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| Section: | 2010 APS Annual Meeting abstracts of presentations
Other records with the "2010 APS Annual Meeting abstracts of presentations" Section
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| Source: | Phytopathology. Vol. 100, No. 65, June supplement 2010, p. S137. |
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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: Agrostis stolonifera; Dollar spot; Growth conditions; Growth factors; Sclerotinia homoeocarpa; Temperature response
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| Abstract/Contents: | "Dollar spot, caused by Sclerotinia homoeocarpa, is an important disease of most turfgrass species worldwide. S. homoeocarpa was described almost a century ago by F.T. Bennett. However, the basic biology and epidemiology of the pathosystem is still unclear. Four isolates of S. homoeocarpa from WI and 6 isolates from OK were grown on native soils and sand. WI isolates were grown with and without creeping bentgrass (Agrostis stolonifera) debris and incubated at temperatures of 11, 14, 17, 20, 23, 26, 29, 31 and 34?C. OK isolates were grown with creeping bentgrass debris only at temperatures of 15, 20, 25, 30, and 35?C. Radial growth of mycelia was recorded at 24, 48, 72, and 96 hours. Growth for all isolates was most rapid between 17 and 26?C. WI isolates grew best on native silt loam with bentgrass debris. Growth was significantly reduced and highly variable at temperatures below 15?C. These data suggest that S. homoeocarpa is strongly saprophytic, and that higher temperatures (17-26?C) are conducive to growth. To assess pathogen aggressiveness, 3 WI isolates and 6 OK isolates were inoculated on live creeping bentgrass incubated at 14, 20, 26 or 34?C. Disease severity was assessed every 24 hours. Four days post-inoculation, disease was most severe at 14 and 20?C for all isolates, with average severity as high as 25%. These initial data suggest that S. homoeocarpa infects creeping bentgrass between 14 and 26?C." |
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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):
Wilson, C., J. Kerns, and D. Smith. 2010. Effects of temperature on growth of Sclerotinia homoeocarpa. Phytopathology. 100(65):p. S137. |
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| Web URL(s):
http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2010.100.6.S1#page=137
Last checked: 11/29/2010
Requires: PDF Reader |
| 
MSU catalog number: b2219736a |
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Digitally in TIC by file name: phytp2010junpres |
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