Leaf rust (Puccinia triticina Eriks) resistance genes in wheat cultivars registered in the Czech Republic

Leaf rust (caused by Puccinia triticina Eriks—Pt) occurs regularly in the Czech Republic and can inflict considerable yield losses on wheat, particularly southeastern part of country warm dry years. Knowledge resistance genes (Lr) is useful breeding, when combined with data virulence population. Seeds 56 winter wheat cultivars registered were obtained from Central Institute for Supervising Testing Agriculture. All tested molecular markers to postulate presence Lr1, Lr10, Lr24, Lr26, Lr28, Lr34, Lr37 Lr68. In total, 39 also leaf field trials. The gene had highest proportion, occurring 24 varieties. most effective was Lr24 gene, which carried various combinations other Lr Athlon, Futurum, Sheriff, Hyfi, Asory, Campesino, Gordian. Also Lr28 mostly highly effective.