Rust of antirrhinum

Doran, W. L.

doi:10.5962/bhl.title.63629

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1989

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“…On susceptible plants, brown uredinia, 1 -7 mm in diameter, develop most commonly on the underside of leaf blades but can also form on petioles, stems and calyces (Blasdale, 1903;Doran, 1921). The telia, which are black and less common than uredinia, generally develop on the stem towards the end of the growing season (Doran, 1921). Investigations to find an alternative host were unsuccessful (Mains, 1924).…”

Section: Introductionmentioning

confidence: 99%

Races of rust (Puccinia antirrhini) of Antirrhinum majus and the inheritance of host resistance

1989

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Fifty‐five isolates of P. antirrhini urediospores were collected from around the world. These isolates were used to inoculate the leaves of 10 cultivars of Antirrhinum majus. Two races of P. antirrhini were identified (α and β). None of the cultivars challenged exhibited resistance to isolates of Race β. Some cultivars were resistant to Race a. Resistance was inherited in a manner consistent with the existence of a dominant, nuclear allele at a single locus.

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Section: Introductionmentioning

confidence: 99%