. "Rasy Pyrenophora tritici-repentis v \u010Cesk\u00E9 republice"@cs . "Palicov\u00E1, Jana" . "58" . . . . "73;78" . "Z(MZE0002700602)" . "Races of Pyrenophora tritici-repentis in the Czech Republic" . "Races of Pyrenophora tritici-repentis in the Czech Republic"@en . . "CZ - \u010Cesk\u00E1 republika" . "RIV/00027006:_____/05:#####191" . "Pyrenophora tritici-repentis, causal agent of tan spot, is one of the most important wheat leaf spot pathogens worldwide. The race structure of P. tritici-repentis isolates obtained from wheat (except one from noncereal grass species) in the Czech Republic was studied. The 86 monosporic isolates of P. tritici-repentis originated from different parts of the Czech Republic were grouped into five known races based on necrosis/chlorosis induction on standard differentials (Katepwa, Glenlea, 6B365, Salamouni). The isolates recovered from wheat were races 1, 2 and 4. Race 1 was the most frequent (50%), races 2 and 4 were found rarely (3% and 5% respectively). The isolate of P. tritici-repentis recovered from noncereal grass species was determined as race 4 which seems to be typical for noncereal hosts. The reaction of 30 isolates (42%) was difficult to be compared to reactions of so far identified P. tritici-repentis races. They have to be tested again on additional wheat genotypes. Key words: Pyrenophora" . . . "RIV/00027006:_____/05:#####191!RIV06-MZE-00027006" . . . . "539898" . "[915569B092AA]" . "Hanzalov\u00E1, Alena" . "0" . . . "6"^^ . "Pyrenophora tritici -repentis je nejv\u00FDznamn\u011Bj\u0161\u00EDm patogenem zp\u016Fsobuj\u00EDc\u00EDm listov\u00E9 skvrnitosti p\u0161enice.Byla sledov\u00E1na rasov\u00E1 struktura populace tohoto patogena a determinov\u00E1ny jednotliv\u00E9 rasy patogena."@cs . "Pyrenophora tritici -repentis, races, wheat"@en . . "2"^^ . . . . "Pyrenophora tritici-repentis, causal agent of tan spot, is one of the most important wheat leaf spot pathogens worldwide. The race structure of P. tritici-repentis isolates obtained from wheat (except one from noncereal grass species) in the Czech Republic was studied. The 86 monosporic isolates of P. tritici-repentis originated from different parts of the Czech Republic were grouped into five known races based on necrosis/chlorosis induction on standard differentials (Katepwa, Glenlea, 6B365, Salamouni). The isolates recovered from wheat were races 1, 2 and 4. Race 1 was the most frequent (50%), races 2 and 4 were found rarely (3% and 5% respectively). The isolate of P. tritici-repentis recovered from noncereal grass species was determined as race 4 which seems to be typical for noncereal hosts. The reaction of 30 isolates (42%) was difficult to be compared to reactions of so far identified P. tritici-repentis races. They have to be tested again on additional wheat genotypes. Key words: Pyrenophora"@en . "Rasy Pyrenophora tritici-repentis v \u010Cesk\u00E9 republice"@cs . "Genetics and Plant Breeding" . "0862-8629" . "Races of Pyrenophora tritici-repentis in the Czech Republic" . "2"^^ . "Races of Pyrenophora tritici-repentis in the Czech Republic"@en .