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| DOI: | 10.1094/PHYTO-103-5-S1.1 |
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| Web URL(s): | http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO-103-5-S1.1#page=8
Last checked: 04/18/2013
Requires: PDF Reader
Notes: Item is within a website 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): | Nissen, L. D.;
Jo, Y.;
Wherley, B. |
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| Author Affiliation: | Nissen and Jo: Department of Plant Pathology & Microbiology; Wherley: Department of Soil & Crop Sciences, Texas A&M University, College Station, TX |
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| Title: | Large patch activity in 'Palisades' zoysiagrass in response to irrigation, nitrogen and Civitas applications |
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| Section: | 2013 Southern Division Meeting abstracts
Other records with the "2013 Southern Division Meeting abstracts" Section
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| Meeting Info.: | Baton Rouge, Louisiana: February 8-10, 2013 |
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| Source: | Phytopathology. Vol. 103, No. 5, Supplement 1 2013, p. S1.8. |
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| Publishing Information: | St. Paul, Minnesota: American Phytopathological Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Aesthetic values; Cultivar evaluation; Cultural methods; Golf greens; Horticultural oils; Irrigation rates; Resistance; Rhizoctonia solani; Seasonal behavior; Soil temperature; Susceptibility; Turfgrass quality; Zoysia japonica; Zoysia matrella
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| Cultivar Names: | Palisades |
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| Trade Names: | Civitas |
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| Abstract/Contents: | "The use of zoysiagrass (Zoysia japonica and Z. matrella) on golf courses and in the landscape is increasing across the southern United States due to its aesthetic appeal as well as excellent heat, drought, shade and cold tolerance. Despite these desirable characteristics, a primary limitation of zoysiagrass is it susceptibility to large patch, caused by the soilborne fungus Rhizoctonia solani. Knowledge is lacking concerning the relationship between summer-time cultural management programs, specifically irrigation and nitrogen level, and large patch activity during subsequent fall and spring periods. Field trials were initiated in May 2012 at the Texas A&M University Turfgrass Ecology Field Laboratory in College Station. Goals of this study are to 1) evaluate the performance of 'Palisades' zoysiagrass, as influenced by irrigation [100, 60, 45 or 36% ETo (reference evapotranspiration)], nitrogen (0, 49, 98 or 196 kg N ha-1) and application of a biofungicide (Civitas) during the summer, 2) determine the relationship between summertime treatments and large patch activity in the fall and spring, and 3) characterize seasonal dynamics of R. solani and other Rhizoctonia spp. present and active in the turfgrass during rapid summer growth, spring and fall transition, and dormancy. Turfgrass performance evaluations indicated acceptable density and quality were achieved at irrigation levels of 36% x ETo throughout the summer. Increasing irrigation above 60% x ETo was not beneficial. Both nitrogen and Civitas applications resulted in short-term greening, but neither significantly improved density in this low-input species. Surprisingly, Rhizoctonia spp. other than R. solani were prevalent in soil and thatch during the summer. R. solani strains became prevalent as soil and air temperatures declined during the fall. Simultaneously with the drop in temperatures, large patch developed, regardless of summertime cultural management. Interestingly, subplots receiving the most irrigation and nitrogen had few to no symptoms." |
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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):
Nissen, L. D., Y. Jo, and B. Wherley. 2013. Large patch activity in 'Palisades' zoysiagrass in response to irrigation, nitrogen and Civitas applications. Phytopathology. 103(5):p. S1.8. |
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| DOI: 10.1094/PHYTO-103-5-S1.1 |
| Web URL(s):
http://apsjournals.apsnet.org/doi/pdf/10.1094/PHYTO-103-5-S1.1#page=8
Last checked: 04/18/2013
Requires: PDF Reader
Notes: Item is within a website single large file |
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MSU catalog number: b2219736a |
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