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You searched for: Start Over Topic Barley yellow dwarf viruses Remove constraint Topic: Barley yellow dwarf viruses License Creative Commons: Attribution-NoDerivatives 4.0 International Remove constraint License: Creative Commons: Attribution-NoDerivatives 4.0 International Photographer Henderson, Robert W. (Robert Wesley), 1914-2006 Remove constraint Photographer: Henderson, Robert W. (Robert Wesley), 1914-2006

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1. Dr. William E. Sieveking comparing barley resistant and susceptible to yellow dwarf virus, 1961
Dr. William E. Sieveking comparing barley resistant and susceptible to yellow dwarf virus, 1961
Description
Dr. William E. Sieveking was an extension farm crops instructor and seed certification specialist from 1953-1969. Ethiopia 505 (CI9697) (resistant) and Hannchen (susceptible) barley tested.
2. Closeup of barley resistant and susceptible to yellow dwarf virus, 1961
Closeup of barley resistant and susceptible to yellow dwarf virus, 1961
Description
CI1227 barley resistant to yellow dwarf virus. Hannchen barley susceptible to yellow dwarf virus.
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