Virulence of Puccinia triticina isolates causing wheat brown rust in Poland in 2023.
Magdalena Radecka-Janusik
m.radecka-janusik@ihar.edu.plInstytut Hodowli i Aklimatyzacji Roślin - PIB (Poland)
https://orcid.org/0000-0001-7920-3115
Abstract
In 2023, a total of 37 single-spore isolates of Puccinia triticina, collected from wheat leaves, were tested. The isolates were evaluated using a differential set consisting of 41 entries, including near-isogenic lines of the Thatcher cultivar, cultivars carrying Lr genes, and the susceptible standard Thatcher. Based on the phytopathological test results, the percentage of virulent isolates identified in Poland in 2023 was determined. The Lr genes Lr2a, Lr9, Lr19, Lr29, Lr52, and Lr63 proved to be highly effective against the tested P. triticina isolates. The pathogen's pathotypes were identified using a set of 16 near-isogenic lines.
Keywords:
brown rust, Puccinia triticina, resistance genes, virulence, wheatReferences
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Authors
Magdalena Radecka-Janusikm.radecka-janusik@ihar.edu.pl
Instytut Hodowli i Aklimatyzacji Roślin - PIB Poland
https://orcid.org/0000-0001-7920-3115
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