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| Web URL(s): | http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2010.100.6.S1#page=36
Last checked: 11/22/2010
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): | Flor, N. C.;
Harmon, P. F.;
Datnoff, L. E.;
Raid, R. N. |
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| Author Affiliation: | Flor and Harmon: University of Florida, Gainesville, FL; Datnoff: Department of Plant Pathology and Crop Physiology, Louisiana State University, Baton Rouge, LA; Raid: University of Florida, Belle Glade, FL |
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| Title: | Screening of St. Augustinegrass (Stenotaphrum secundatum) germplasm for brown patch and large patch resistance |
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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. S36. |
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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: Comparisons; Disease resistance; Rhizoctonia blight; Rhizoctonia solani; Stenotaphrum secundatum
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| Abstract/Contents: | "St. Augustinegrass (SAG) is a warm season grass commonly used in the United States. Large patch disease, caused by Rhizoctonia solani AG-2-2 LP, is considered one of the most important fungal diseases of SAG. While brown patch disease, caused by other anastomosis groups of R. solani primarily affects cool season grasses, but does occasionally occur on warm season grasses as well. Differences in large patch resistance in SAG cultivars has been observed but never quantified. One BP and one LP isolate from St. Augustinegrass were chosen to screen twenty genotypes of SAG. Pots of SAG plants were inoculated with mycelial plugs and maintained in an incubator at 23 to 26?C. Disease progress on each genotype was assessed daily and the intrinsic rates of infection were calculated. AUDPC also was calculated for each genotype. Trials were replicated, randomized, and repeated. Means were separated after ANOVA with a Waller-Duncan k-ratio t-test. Results indicated that some genotypes were more resistant to large patch and brown patch than others, but results did not correlate between isolates for all genotypes. In general, dwarf genotypes of SAG developed more disease than standard height genotypes. Ploidy level within genotype did not significantly impact resistance. Future screening efforts should focus on large patch isolates of R. solani. Additional work is needed to further characterize brown patch isolates from warm season turfgrass and to determine the potential impact of this disease." |
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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):
Flor, N. C., P. F. Harmon, L. E. Datnoff, and R. N. Raid. 2010. Screening of St. Augustinegrass (Stenotaphrum secundatum) germplasm for brown patch and large patch resistance. Phytopathology. 100(65):p. S36. |
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| Web URL(s):
http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.2010.100.6.S1#page=36
Last checked: 11/22/2010
Requires: PDF Reader |
| 
MSU catalog number: b2219736a |
| Find from within TIC:
Digitally in TIC by file name: phytp2010junpres |
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