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Web URL(s): | http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.1999.89.6.S1#page=19 Last checked: 10/16/2015 Requires: PDF Reader Notes: Item is within a single large file |
Publication Type:
| Report |
Content Type: | Abstract or Summary only |
Author(s): | Datnoff, L. E.;
Nagata, R. T. |
Author Affiliation: | University of Florida, IFAS, Everglades Research and Education Center, Belle Glade |
Title: | Influence of silicon on grey leaf spot development in St. Augustinegrass |
Meeting Info.: | Annual Meeting of the American Phytopathological Society, Montreal, Quebec, August 7-11, 1999 |
Source: | Phytopathology. Vol. 89, No. 6, June 1999, p. S19. |
Publishing Information: | St. Paul, MN: American Phytopathological Society |
# of Pages: | 1 |
Keywords: | TIC Keywords: Stenotaphrum secundatum; Silicon; Disease control; Gray leaf spot; Disease development; Disease severity; Pyricularia grisea
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Cultivar Names: | Bitter Blue; Floratam; Seville; FX-10 |
Abstract/Contents: | "This study investigated the effect of silicon on grey leaf spot, caused by Pyricularia grisea, in St. Augustinegrass. The experiment was a factorial with 10 replications arranged in a RCB in the greenhouse. Main effects were silicon (14 gm CaSiO3/500 cc soil) and a non-amended control, and subeffects were four St. Augustinegrass cultivars; Bitterblue, Floratam, FX-10 and Seville. Plants were periodicallly misted to provide optimum leaf wetness that promoted natural infection by P. grisea. Disease severity was rated over a 4 week period by estimating % grey leaf spot on individual leaflets and by perfoming % whole plant assessments using a Horsfall-Barratt rating scale. Silicon dramatically reduced % grey leaf spot infection for Bitterblue (49.3 vs 10.5), Floratam (42.7 vs 9.6), FX-10 (4.2 vs 2.2) and Seville (24.2 vs 19.6). Similar results were obtained for % whole plant infection for all the cultivars. Plant silicon content in Si amended treatments increased more than 2x over the controls for all cultivars. Silicon appears to be a good method for managing grey leaf spot in St. Augustinegrass." |
Language: | English |
References: | 0 |
Note: | This item is an abstract only! |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Datnoff, L. E., and R. T. Nagata. 1999. Influence of silicon on grey leaf spot development in St. Augustinegrass. Phytopathology. 89(6):p. S19. |
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| Web URL(s): http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO.1999.89.6.S1#page=19 Last checked: 10/16/2015 Requires: PDF Reader Notes: Item is within a single large file |
| MSU catalog number: SB 599 .P48 |
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