Reaction of 50 Winter Wheat Cultivars Grown in the Czech   Republic to Pyrenophora tritici-repentis Races 1, 3, and 6

https://doi.org/10.17221/3651-CJGPBCitation:Palicová-Šárová J., Hanzalová A. (2006): Reaction of 50 Winter Wheat Cultivars Grown in the Czech   Republic to Pyrenophora tritici-repentis Races 1, 3, and 6. Czech J. Genet. Plant Breed., 42: 31-37.
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The reaction of 50 winter wheat cultivars/lines to artificial infection with Pyrenophora tritici-repentis (PTR) races 1, 3, and 6 was studied under greenhouse conditions. The set of tested cultivars/lines included predominantly cultivars registered in the Czech Republic and some new breeding lines. A high level of resistance to P. tritici-repentis was detected in the cultivars Clarus, Rheia, Cubus, SHMK WW 14-92, Šárka, Vlasta and Dromos (SWS 799.14953), susceptible reactions were observed in the cultivars Caphorn, Corsaire, Karolinum, Heroldo (PBIS 00/91), Hedvika, Biscay, Svitava, Barroko (PBIS 00/140) to all three races tested. The majority of the tested cultivars possess a moderate level of resistance to PTRraces 1, 3, and 6. Significant differences were proved not only in the reaction of the tested cultivars but also in the aggressiveness of the three used isolates.  
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