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Cereal Research Communications

, Volume 38, Issue 3, pp 366–374 | Cite as

Physiologic specialization of wheat leaf rust (Puccinia triticina Eriks.) in the Czech Republic in 2005–2008

  • A. HanzalováEmail author
Open Access
Pathology

Abstract

In 2005–2008 virulence of the wheat leaf rust population was studied on Thatcher near-isogenic lines with Lr1, Lr2a, Lr2b, Lr2c, Lr3a, Lr9, Lr10, Lr11, Lr15, Lr17, Lr19, Lr21, Lr23, Lr24, Lr26 and Lr28. Samples of leaf rust were obtained from different parts of the Czech Republic. A total of 233 wheat leaf rust isolates were analyzed. Resistance gene Lr9 was effective to all tested isolates as in the four previous years. Virulence to Lr19 (0.8% of the analysed isolates) was found. Gene Lr24 conditioned resistance to almost all collections and a lower frequency of virulence was also observed on Lr2a and Lr28. Twenty-six winter wheat cultivars, seven spring wheat cultivars and seven winter triticale cultivars registered in 2005–2008 were tested with 7 leaf rust isolates. Winter wheat cultivars Biscay, Mulan and Orlando were resistant to all isolates and were also resistant in field trials.

Keywords

leaf rust pathotypes Lr genes wheat triticale resistance 

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© Akadémiai Kiadó, Budapest 2010

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Authors and Affiliations

  1. 1.Department of Genetics and Plant Breeding MethodsCrop Research InstitutePraha 6 - RuzyněCzech Republic

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