System of Nomenclature for Races ofPuccinia graminisf. sp.avenae
- 1 January 1979
- journal article
- research article
- Published by Scientific Societies in Phytopathology®
- Vol. 69 (3) , 293-294
- https://doi.org/10.1094/phyto-69-293
Abstract
A formula system for describing Puccinia graminis f. sp. avenae avirulence/virulence combinations of Avena sativa based on 9 single-gene backcross differential lines (including 2 new genes for resistance) and 1 undefined genotype is proposed for international use. Thirty different avirulence/virulence combinations were identified in P. graminis f. sp. avenae in North America with this group of differential lines.Keywords
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