Preparing for the Occurrence of New Races of Rust

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IN Australia within the last eight years there have been two important cases of the breakdown of resistance to rust in wheat. The first was in 1942 when Eureka 2, a variety which, up to that time, had been highly resistant, suddenly became susceptible. This new stem rust has, on account of its close relationship with race 126, been designated as race 126B (unpublished data). The second case was in 1945, when Gabo was attacked by leaf rust (P. triticina) for the first time in Australia. This is also a rust unlike those previously present.

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WATSON, I. Preparing for the Occurrence of New Races of Rust. Nature 163, 730–731 (1949) doi:10.1038/163730b0

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