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| Web URL(s): | http://www.apsnet.org/publications/phytopathology/backissues/Documents/1987Articles/phyto77n12_1687.pdf#page=47
Last checked: 10/15/2015
Requires: PDF Reader
Notes: Item is within a 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): | Couch, H. B.;
Smith, B. D. |
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| Author Affiliation: | Dept. Plant Pathology, Physiology, and Weed Science. Virginia Tech, Blacksburg, VA. |
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| Title: | Relationship of Suscept Nutrition, Air Temperatures, and Duration of Leaf Wetness to the Development of Helminthosporium Leaf Spot of Creeping bentgrass and Kentucky Bluegrass |
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| Source: | Phytopathology. Vol. 77, No. 12, December 1987, p. 1733. |
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| Publishing Information: | St. Paul, MN: American Phytopathological Society |
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| Keywords: | TIC Keywords: Poa pratensis; Agrostis stolonifera; Nutrition; Air temperature; Relative water content; Drechslera leaf spot; Bipolaris; Disease control
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| Abstract/Contents: | "Helminthosporium leaf spot, incited by Bipolaris sorokiniana, is a major disease of bentgrass (Agrostis palustris) and Kentucky bluegrass (Poa pratensis) in sections of the North American continent characterized by warm, humid summer months. Bentgrass and bluegrass plants grown under nutritional regimes of either high imbalanced N or high balanced N, P and K were more susceptible to the disease that those grown under either low imbalanced n or low balanced N, P and K. Plants grown at a soil moisture regime of cyclic -0.033 MPa -> -1.5 MPa -> -0.033 MPa, were more susceptible to the disease than those grown at continuous -0.033 MPa. At a leaf surface temperature of 21 C, 48 hr leaf wetness was required for a high incidence of infections. However, when leaf surface temperatures were 26 - 32 C, the same magnitude of infections occurred within 24 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):
Couch, H. B., and B. D. Smith. 1987. Relationship of Suscept Nutrition, Air Temperatures, and Duration of Leaf Wetness to the Development of Helminthosporium Leaf Spot of Creeping bentgrass and Kentucky Bluegrass. Phytopathology. 77(12):p. 1733. |
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| Web URL(s):
http://www.apsnet.org/publications/phytopathology/backissues/Documents/1987Articles/phyto77n12_1687.pdf#page=47
Last checked: 10/15/2015
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: SB 599 .P48 |
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