Abstract
Ensuring food security is focused on the development of wheat cultivars characterized by high yield potential, resistance to phytopathogens, and tolerance to adverse abiotic environmental factors. In this context, breeding for disease resistance occupies a key position in modern breeding programs, as promising cultivars must combine high productivity with a complex of agronomically valuable traits that ensure yield stability and grain quality. In the southeastern region of Kazakhstan, winter wheat crops suffer significant damage from rust pathogens (Puccinia) and bunt (Tilletia). At the same time, the majority of the tested cultivars and breeding lines are susceptible to these pathogens. Therefore, the identification, evaluation and use of new sources of resistance remain urgent tasks in wheat breeding.
The aim of this study was to assess the resistance of winter wheat breeding lines to the major fungal diseases. Immunological evaluations were carried out under artificial infection conditions (N 43.238193°, E 76.696753°) at the experimental station of the Kazakh Scientific Research Institute of Agriculture and Plant Growing. The paper presents the results of phytopathological assessment of breeding material and the selection of resistant forms. As a result of the study, lines resistant (R) to yellow rust and common bunt were identified, representing valuable immunological material for further breeding. The combination of high productivity with disease resistance is considered a key factor in accelerating the development of competitive cultivars for grain-producing regions.
01 Introduction
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02 References
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