Physiologic specialization of Puccinia coronata avenae in Argentina

Vallega, J.

An. Inst. fitotec. Santa Catalina., 2: 53-82


Accession: 013462489

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Physiologic races 1, 45, 55, and 56 of oats crown rust (Puccinia coronata avenae) were comprised in the 137 samples collected between 1939 and 1941 in Argentina, The principal common feature of the four races was their high degree of virulence to the differential varieties Green Russian, Hawkeye, Anthony, Sunrise, Green Mountain, White Tartar, Appler, Sterisal, and Belar: they were separable, however, on the basis of their pathogenicity to Ruakura, Bond, and Victoria.