Incidence of crown rust and virulence of Puccinia coronata Cda. f.sp. avenae Eriks. and the effectiveness of PC genes for resistance in Europe, Middle East and North Africa

Josef Sebesta, Bruno Zwatz, Hywel W. Roderick, Luciana Corazza, Jacob Manisterski, Srba Stojanovic

Research output: Contribution to journalArticlepeer-review

16 Citations (SciVal)

Abstract

Crown rust on oat incited by Puccinia coronata Cda f.sp. avenae is a wide-spread disease in Europe, Middle East (Israel) and North Africa (Morocco). High natural levels of the disease were recorded in Austria, Bulgaria, Czech Republic, Estonia, Israel, Italy, Poland, Russia and the former Yugoslavia. The severity of the disease in the European and Mediterranean Oat Disease Nursery (EMODN) between 1995 and 1999 showed that it occurred at damaging levels in a number of countries. Considerable differences in a disease resistance index (DRI) to crown rust among 67 oat lines in the period 1995 - 2000 were found. The values of the DRI ranged from18 (KR 8122) to over 290 (Pc 59, Pc 68). Detailed studies of the virulence combinations of P.coronata f.sp. avenae in Europe, Middle East and North Africa were carried out between 1995 - 2001. There were considerable differences in the average number of virulence among countries. Virulence to Pc 39 and 68 was found for the first time and is a significant finding. Nevertheless the major genes Pc 68, Pc 39, Pc 50-2, Pc Pc 59, Pc 60, Pc 61 proved to be highly effective.
Original languageEnglish
Pages (from-to)179-194
Number of pages16
JournalArchives of Phytopathology and Plant Protection
Volume36
Issue number3-4
DOIs
Publication statusPublished - 2003

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