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| Web URL(s): | http://www.apsnet.org/publications/phytopathology/backissues/Documents/1990Articles/Phyto80n07_650.pdf
Last checked: 10/15/2015
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | Kackley, K. E.;
Grybauskas, A. P.;
Hill, R. L.;
Dernoeden, P. H. |
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| Author Affiliation: | Departments of Botany and Agronomy, University of Maryland |
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| Title: | Influence of temperature-soil water status interactions on the development of summer patch in Poa spp. |
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| Source: | Phytopathology. Vol. 80, No. 7, July 1990, p. 650-655. |
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| Publishing Information: | St. Paul, MN: American Phytopathological Society |
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| Keywords: | TIC Keywords: Poa pratensis; Magnaporthe poae; Temperatures; Water stress; Summer patch
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| Abstract/Contents: | "Kentucky bluegrass (poa pratensis) cultivars Aspen and S-21 and annual bluegrass (poa annua) were treated with live or killed inoculum of Magnaporthe poae and incubated in growth chambers at four temperatures (20, 25, 30, 35 C) and four water-stress conditions corresponding to inferred soil matric potential ranges of >-0.05, -0.05 to -0.40 to -0.80, or -0.80 to -1.20 MPa. All plants grown at 35 C died of supraoptimal temperature stress before disease symptoms developed. Disease developed only in plants receiving live inoculum. The area under the disease progress curve for disease incidence was greatest in annual bluegrass at all temperatures, and at 30 C for all grasses. At 20 C, disease incidence and symptom expression were greatest at -0.05 to -0.40 MPa. At 25 and 30 C, disease incidence and symptom expression were greatest at >-0.05 MPa. There was a reduction in quality of asymptomatic plants within pots inoculated with live M. poae when compared with plants receiving killed inoculum. Summer patch was most severe in plants growing at supraoptimal temperature stress of 25 or 30 C and high soil moisture. Temperature, but not severe drought stress, appears to be a key factor in summer patch development." |
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| Language: | English |
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| References: | 24 |
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| See Also: | Other items relating to: SUMPAT
Other items relating to: Summertime Blues |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Kackley, K. E., A. P. Grybauskas, R. L. Hill, and P. H. Dernoeden. 1990. Influence of temperature-soil water status interactions on the development of summer patch in Poa spp.. Phytopathology. 80(7):p. 650-655. |
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| Web URL(s):
http://www.apsnet.org/publications/phytopathology/backissues/Documents/1990Articles/Phyto80n07_650.pdf
Last checked: 10/15/2015
Requires: PDF Reader |
| 
MSU catalog number: SB 599 .P48 |
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