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| DOI: | 10.1094/PDIS-05-19-1070-RE |
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| Web URL(s): | http://catalog.hathitrust.org/Record/000641918
Last checked: 11/03/2015
Notes: Pending URL completion; Plant Disease Reporter archive; Contains very old editions only (1920s to 1979)
https://apsjournals.apsnet.org/doi/pdf/10.1094/PDIS-05-19-1070-RE
Last checked: 12/01/2020
Requires: PDF Reader
Notes: Item is within a limited access website |
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| Publication Type:
| Refereed |
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| Author(s): | Sykes, Virginia R.;
Horvath, Brandon J.;
McCall, David S.;
Baudoin, Antonius B.;
Askew, Shawn D.;
Goatley, James M.;
Warnke, Scott E. |
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| Author Affiliation: | Sykes: Department of Plant Science, University of Tennessee, Knoxville, TN and Department of Plant Pathology, Physiology, and Weed Science, Virginia Tech, Blacksburg, VA; and Horvath: Department of Plant Science, University of Tennessee, Knoxville, TN and Department of Plant Pathology, Physiology, and Weed Science, Virginia Tech, Blacksburg, VA |
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| Title: | Screening tall fescue for resistance to Rhizoctonia solani and Rhizoctonia zeae using digital image analysis |
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| Section: | Research
Other records with the "Research" Section
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| Source: | Plant Disease. Vol. 104, No. 2, February 2020, p. 358-362. |
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| Publishing Information: | [Washington, D.C.]: Bureau of Plant Industry, U.S. Dept. of Agriculture |
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| # of Pages: | 5 |
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| Related Web URL: | https://apsjournals.apsnet.org/doi/abs/10.1094/PDIS-05-19-1070-RE
Last checked: 12/01/2020
Notes: Abstract only |
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| Abstract/Contents: | "Brown patch, caused by Rhizoctonia solani, is a destructive disease on tall fescue. Compared with R. solani, Rhizoctonia zeae causes indistinguishable symptoms in the field but varies in geographic distribution. This may contribute to geographic variability observed in the resistance response of improved brown patchresistant cultivars. This study examined R. solani and R. zeae susceptibility of four cultivars, selected based on brown patch performance in the National Turfgrass Evaluation Program (NTEP), and nine plant introductions (PIs). Twenty genotypes per PI/cultivar were evaluated by using four clonal replicates in a randomized complete block design. Plants were inoculated under controlled conditions with two repetitions per pathogen. Disease severity was assessed digitally in APS Assess, and analysis of variance and correlations were performed in SAS 9.3. Mean disease severity was higher for R. solani (65%) than for R. zeae (49%) (P = 0.0137). Interaction effects with pathogen were not significant for PI (P = 0.0562) but were for genotype (P < 0.001). Moderately to highly resistant NTEP cultivars compared with remaining PIs exhibited lower susceptibility to R. zeae (P < 0.0001) but did not differ in susceptibility to R. solani (P = 0.7458). Correlations between R. solani and R. zeae disease severity were not significant for either PI (R = 0.06, P = 0.8436) or genotype (R = 0.11, P = 0.09). Breeding for resistance to both pathogens could contribute to a more geographically stable resistance response. Genotypes were identified with improved resistance to R. solani (40), R. zeae (122), and both pathogens (26)." |
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| Language: | English |
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| References: | 19 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Sykes, V. R., B. J. Horvath, D. S. McCall, A. B. Baudoin, S. D. Askew, J. M. Goatley, et al. 2020. Screening tall fescue for resistance to Rhizoctonia solani and Rhizoctonia zeae using digital image analysis. Plant Disease. 104(2):p. 358-362. |
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| DOI: 10.1094/PDIS-05-19-1070-RE |
| Web URL(s):
http://catalog.hathitrust.org/Record/000641918
Last checked: 11/03/2015
Notes: Pending URL completion; Plant Disease Reporter archive; Contains very old editions only (1920s to 1979)
https://apsjournals.apsnet.org/doi/pdf/10.1094/PDIS-05-19-1070-RE
Last checked: 12/01/2020
Requires: PDF Reader
Notes: Item is within a limited access website |
| 
MSU catalog number: b2191617 |
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