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- Title
Reaction of some winter oat cultivars to oat mosaic and oat tubular viruses.
- Authors
Catherall, P. L.; Boulton, R. E.
- Abstract
In four out of five seasons in Wales, during 1970-76, the winter oat cvs Mans Osprey and Peniarth were very susceptible to oat mosaic virus, cv. Padarn was moderately susceptible and cvs Pendrwm and Century were resistant. However, plants of resistant cultivars were sometimes severely damaged and some symptomless plants contained virus particles. It is suggested that a minimum threshold of virus in the plant is necessary to induce symptoms and that this threshold is lower in susceptible than in resistant cultivars. Cvs Pendrwm and Century were also the most resistant to oat tubular virus. Sap from cv. Padarn induced most local lesions in the assay host Nicotiana clevelandii, indicating that oat tubular virus reached its highest concentration in this cultivar.
- Subjects
CULTIVARS; OAT mosaic; OAT diseases &; pests; MOSAIC viruses; PLANT viruses; PLANT fibers; PHYTOPATHOGENIC microorganisms; VIRUS diseases of plants; PLANT parasites
- Publication
Plant Pathology, 1979, Vol 28, Issue 2, p57
- ISSN
0032-0862
- Publication type
Article
- DOI
10.1111/j.1365-3059.1979.tb02923.x