Saulyak N. Study of the Initial Material of Winter Soft Wheat for Breeding Resistance to Foliar–Stem Diseases

Dissertation for the degree of Candidate of Agricultural Sciences, specialty 06.01.05 – Breeding and Seed Production (Н Agricultural, Forestry, Fisheries, and Veterinary Sciences). Plant Breeding & Genetics Institute - National Center of Seed and Cultivar Investigation, Odesa, 2025. The dissertation presents the results of studies on the initial material of winter soft wheat for breeding resistance to foliar and stem diseases and identifying effective resistance sources for selection. For the first time, under the conditions of southern Ukraine, information has been expanded regarding the presence of effective resistance gene carriers in the steppe zone against local populations of foliar and stem diseases. Methodological approaches for identifying winter soft wheat genotypes resistant to rust diseases and powdery mildew have been improved. To enhance the efficiency of assessing and selecting genotypes with complex resistance, the use of specially created complex infectious disease backgrounds under study has been proposed. The research on the genetic component of winter soft wheat resistance to foliar and stem diseases has been further developed using hybrids derived from crosses between parents with different genetic mechanisms of resistance control.