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| Web URL(s): | http://www.apsnet.org/publications/phytopathology/backissues/Documents/1987Articles/Phyto77n06_863.pdf
Last checked: 10/15/2015
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | Moss, M. A.;
Trevathan, L. E. |
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| Author Affiliation: | Former graduate research assistant and associate professor, Department of Plant Pathology and Weed Science, Mississippi State University |
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| Title: | Environmental conditions Conducive to Infection of Ryegrass by Pyricularia grisea |
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| Source: | Phytopathology. Vol. 77, No. 6, June 1987, p. 863-866. |
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| Publishing Information: | St. Paul, MN: American Phytopathological Society |
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| Keywords: | TIC Keywords: Lolium; Pyricularia grisea; Environment; Epidemiology; Conidia
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| Abstract/Contents: | "Environmental conditions conducive to infection of ryegrass (Lolium multiflorum) by Pyricularia grisea were characterized and the relative susceptibility of ryegrass cultivars was determined. Infection of 3-wk-old plants of the susceptible cultivar Gulf increased exponentially with increasing inoculum densities up to 8 X 10(to the 5th) conidia per milliliter. The youngest leaf of individual plants developed very few lesions in comparison with the more mature second, third, and fourth leaves. Maximum infection was predicted to occur on plants 4.7 wk old. the optimum temperature for infection was predicted to be 26 C. Few lesions occurred at 35 C, and none were observed at 5 C. A continual leaf-wetness period of at least 24 hr was required for maximum infection and may be the critical factor in epidemic disease development. Marshall, Sunbelt, and Tetrablend 444 cultivars developed fewer lesions than dud the more susceptible cultivar Gulf." |
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| Language: | English |
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| References: | 12 |
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| Note: | Figures |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Moss, M. A., and L. E. Trevathan. 1987. Environmental conditions Conducive to Infection of Ryegrass by Pyricularia grisea. Phytopathology. 77(6):p. 863-866. |
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| Web URL(s):
http://www.apsnet.org/publications/phytopathology/backissues/Documents/1987Articles/Phyto77n06_863.pdf
Last checked: 10/15/2015
Requires: PDF Reader |
| 
MSU catalog number: SB 599 .P48 |
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