EVALUATION OF COMPLEX DISEASE RESISTANCE OF DIFFERENT WINTER WHEAT VARIETIES

Under the conditions of climatic changes, the task of creating and introducing varieties with im-proved adaptive properties into agricultural production is of particular relevance. In addition, it is neces-sary to search for new sources of genetic resistance to common pathogens. Various diseases such as rust, fusarium ear blight, pyrenophorosis and powdery mildew can significantly affect the yield and quality of cereals. As part of the breeding activities, particular attention is being paid to the discovery of new genetic resources that provide resistance to the most important pathogens in soft winter wheat varieties from dif-ferent regions. The purpose of the study is to identify the most valuable soft winter wheat samples in terms of complex field resistance to the most important diseases in the region that can be used for practical breeding. Eleven soft winter wheat varieties with complex resistance to various diseases, including yellow and brown rusts, pyrenophorosis, powdery mildew and fusarium ear blight were identified. These varieties include: two varieties from Germany – Torrild and Olivin; three varieties from Kazakhstan – Mereke 70, Zhadira, Ak bidajj; two varieties from Belarus – Zaritsa and Jadvisja; three varieties from Poland – Soraja, Fenezja, Muza; one variety from France – Dorota.