A screening technique to evaluate resistance of rice to Rhynchosporium oryzae.
A simple and uniforme method for testing rice cultivars for resistance to Rhynchosporium oryzae in a glasshouse was developed. Leaves of 30-day-old plants grown in plastic trays were inoculated with 6- to 7-day-old mycelial disks and incubated under moist conditions for 96 hr. Lesion extension from the point of inoculation was used as a measure of resistance. Susceptibility of test cultivars relative to a standard check cultivar was calculated. Of 40 local and introduced rice cultivars screened, 21 showed relative resistance to one isolate of R. oryzae.
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| Main Authors: | , |
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| Other Authors: | |
| Format: | Artigo de periódico biblioteca |
| Language: | Ingles English |
| Published: |
Plant Disease, v. 64, n. 9, p. 845-846, Sept. 1980.
2006-01-11
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| Subjects: | Resistência varietal, Arroz, Doença, Oryza Sativa, Rhynchosporium Oryzae, Rice, Varietal resistance, Scald diseases., |
| Online Access: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/208403 |
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