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| Web URL(s): | http://www.apsnet.org/publications/phytopathology/backissues/Documents/1991Articles/phyto81n01_120.pdf#page=6
Last checked: 10/15/2015
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Refereed |
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| Content Type: | Abstract or Summary Only |
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| Author(s): | Vallencourt, L.;
Schumann, G. L. |
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| Author Affiliation: | Dept. of Plant Pathology, University of Massachusetts, Amherst, MA |
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| Title: | Preliminary model for predicting brown patch (Rhizoctonia spp.) on creeping bentgrass |
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| Source: | Phytopathology. Vol. 81, No. 1, January 1991, p. 125. |
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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: Models; Brown patch; Rhizoctonia; Agrostis stolonifera
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| Abstract/Contents: | "A model for predicting brown patch outbreaks has been developed based on data from field and growth chamber experiments done in 1989-90. Key environmental parameters include precipitation, relative humidity (RH), and soil and air temperatures within a 24 hr period. Severe disease outbreaks occur when: 1) air temperature exceeds 16 C and the average is greater than 21 C; 2) RH remains higher than 95% for at least 12 hr; 3) soil temperatures exceed 20 C and the average is greater than 21 C; and 4) precipitation and/or irrigation deposition is greater than 4 mm. Less severe disease, such as "smoke rings" without foliar blighting, may occur under the same conditions when precipitation is less than 4 mm or absent. A low risk of infection remains at temperatures to a minimum of 12 C if the average temperature remains greater than 21 C and the period of high RH exceeds 14 hr." |
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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):
Vallencourt, L., and G. L. Schumann. 1991. Preliminary model for predicting brown patch (Rhizoctonia spp.) on creeping bentgrass. Phytopathology. 81(1):p. 125. |
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| Web URL(s):
http://www.apsnet.org/publications/phytopathology/backissues/Documents/1991Articles/phyto81n01_120.pdf#page=6
Last checked: 10/15/2015
Requires: PDF Reader
Notes: Item is within a single large file |
| 
MSU catalog number: SB 599 .P48 |
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