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This article in AJ

  1. Vol. 49 No. 7, p. 365-367
    Received: June 18, 1957



Studies on the Importance of the Yellow-dwarf Virus1

  1. C. A. Suneson and
  2. R. T. Ramage2



California's commercial varieties of barley, oats, and wheat showed similar yield reductions from yellow-dwarf virus for which there is no universal diagnostic symptom. American barley varieties in general were more susceptible than California's. Since significant yield reductions were common, and reductions above 70% not unusual for susceptible varieties, yellow dwarf must be ranked as a major cereal crops disease.

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