Virulence of wheat leaf rust in Slovakia in 1997–1998
Pavel Bartoš, Jozef Huszár, Eva Herzováhttps://doi.org/10.17221/9704-PPSCitation:Bartoš P., Huszár J., Herzová E. (1999): Virulence of wheat leaf rust in Slovakia in 1997–1998. Plant Protect. Sci., 35: 85-92.
In 1997–1998 virulence of the leaf rust population was studied on near isogenic Thatcher lines with the genes for resistance Lr1, Lr2a, Lr2b, Lr2c, Lr3, Lr9, Lrll, Lr15, Lr/7, Lr19, Lr21, Lr23, Lr24, Lr26 and Lr28, and on the standard differentials Mala koff, Carina, Brevit, Webster, Loros, Mediterranean, Hussar, Democrat and the supplemental cultivar Salzmtinder Bartweizen. All 55 analyzed rust samples were avirulent on Lr9, Lr19, Lr24 and Lr28.On the standard differentials, races 61SaBa, 77SaBa, 77/57SaBa, 2SaBa, 77, 12SaBa, 62SaBa, 6, 6SaBa and 14 were determined. Races 61SaBa and 77SaBa (77/57SaBa) prevailed in both years. Races 6 and 6SaBa were found for the first time. The effectiveness of leaf rust resistance genes in registered cultivars under field conditions in variety trials is discussed.
Puccinia persisrens subsp. triticina, syn. Puccinia recondita f. sp. tritici; pathotypes; physiologic races; Lr genes; winter wheat; inscripted cultivars; Slovakia