作者: B. KASSANIS
DOI: 10.1111/J.1744-7348.1949.TB06417.X
关键词:
摘要: Sugar-beet yellows virus, hitherto transmitted only by aphides, can be mechanically to sugar-beet if a suitable abrasive is used. Most inoculated leaves develop local lesions, but systemic infection usually occurs in 10% of the plants. Systemic symptoms more slowly than plants infected with aphides.