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The paper presents results regarding the new winter wheat disease present with great intensity in the north-west Romania during the year 2020. In the climatically changing context, viruses of poaceae affected with intensity the wheat, with a severe reduction of yield. The paper presents the symptoms of bydv during of the phenological stage: yellowing of leave, margins shading leaves, purple leaf coloration, blackened of plant. An unusual positive correlation was point out between purple leaf coloration, caused by virus, and percent of total protein content. some genotypes (Bogdana, Ursita, and Abundent) seems to have some resistance to virus. The best entries have either Otilia or the line f.00628g34 (derived from a triticale/wheat cross), or both in their pedigrees.
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