Resistance to rust (Puccinia antirrhini) in Antirrhinum majus

Gawthrop, Frances Mary

(1980)

Gawthrop, Frances Mary (1980) Resistance to rust (Puccinia antirrhini) in Antirrhinum majus.

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Abstract

A quantitative assessment of the susceptibility of 131 cultivars of Antirrhinum majus L. to the rust fungus Puccinia antirrhini Dietel and Holway by means of replicated trials over two years revealed a wide range of general resistance; there is scope for improvement of rust-resistance by breeding. The loss of immunity was due to genetic change in the fungus because variations in pathogenicity occur among geographical isolates. An investigation of the epidemiology of the rust revealed that during the summer in Britain, uredospores are liberated through the day to germinate and establish infection after dew has fallen in the evening. The local dispersal of the pathogen is largely by wind but the spread between continents throughout the world is more likely to be due to human activity. A breeding programme is suggested for the improvement of A. majus by hybridizing the more resistant cultivars. Meanwhile, some horticulturally acceptable varieties with rate-reducing resistance to the fungus are recommended. These varieties should not become disfigured by the disease provided they are grown away from susceptible varieties.

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This is a Accepted version
This version's date is: 1980
This item is not peer reviewed

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https://repository.royalholloway.ac.uk/items/267acc02-82ed-48fc-bbfe-df38b6dff663/1/

Item TypeThesis (Doctoral)
TitleResistance to rust (Puccinia antirrhini) in Antirrhinum majus
AuthorsGawthrop, Frances Mary
Uncontrolled KeywordsPlant Pathology; Biological Sciences; Antirrhini; Antirrhinum; Majus; Puccinia; Resistance; Rust; Rust Fungus; Rust Fungus
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ISBN978-1-339-61559-2

Deposited by () on 01-Feb-2017 in Royal Holloway Research Online.Last modified on 01-Feb-2017

Notes

Digitised in partnership with ProQuest, 2015-2016. Institution: University of London, Royal Holloway College (United Kingdom).


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