New sources of powdery mildew resistance among winter bread wheat for adjusting the breeding immunological programs in the Agricultural Research Center “Donskoy”

Systematic work on the development of winter wheat varieties possessing resistance to a complex most harmful diseases has been carried out in Agricultural Research Center “Donskoy” since early 1970s. During this period, there created large number that possess 3–4 conditions infectious backgrounds pathogens. Due analysis varieties, was identified small resistant powdery mildew. Powdery mildew, caused by fungus Blumeria graminis (DC) Speer, annually occurs wheat, affecting all aboveground plant organs. Earlier FSBSI “ARC developed and widely cultivated medium-resistant ‘Tanais’ (2006), ‘Nakhodka’ (2015), ‘Etyud’, ‘Shef’, ‘Lilit’ (2016), ‘Volnitsa’ (2017), ‘Polina’, Yubiley Dona’ , ‘Podarok Krymu’ (2018), ‘Niva (2019). In recent years, breeders have such with high pathogen as ‘Donskaya Step’ ‘Premiera’, ‘Univer’ ‘Priazovye’, ‘Zolotoy Kolos’ (2020). But breeding process for mildew is difficult, it explained effective genes their sources. Therefore, purpose current study identify new sources pathogen. Under artificial infection, during last 10 years conducted testing 302 samples domestic foreign breeding. There not immune varieties. percentage (15.2) were Among Russian they ‘L 3191 k-5-8’, ‘Akhmat’, ‘Alievich’, ‘Barier’, ‘Ulyasha’, ‘Knyaginya Olga’, which attacked disease over testing. ‘Bombus’, ‘Sailor’ (France), ‘Etana’, ‘Rotax’, ‘KVS-Emil’ (Germany), ‘Fidelius’ (Austria), ‘MV 09-04’ (Hungary) best ones All recommended programs immunity.