Ralph U. Cotter
Born 1896-01-01
Identifiers
- Open LibraryOL6573231A
Top Subjects
- Puccinia graminis (1)
- Barberries -- Diseases and pests (1)
Books by Ralph U. Cotter
Total count: 4
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Physiologic specialization in Puccinia graminis secalisU. S. Government Printing Office1932-01-01
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Factors affecting the development of the aerial stage of Puccinia graminisU.S. Dept. of Agriculture1932-01-01
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An unusual tetial collection of Puccinia graminis1940-01-01
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Unseasonable germinations of teliospores of Puccinia graminis tritici1940-01-01