The present study aimed to evaluate the technological grain quality traits of winter wheat (Triticum aestivum L.) varieties grown under selection nursery conditions. Grain quality plays a crucial role in determining wheat suitability for processing and baking. In this study, 30 winter wheat varieties developed by local breeders were analyzed for key quality parameters, including grain bulk density (test weight), protein content, gluten content, and grain vitreousness.

The results showed significant variation among the studied genotypes. Grain bulk density ranged from 800.9 to 885.0 g/L, with the highest values observed in Muzbuloq, Temiryazevka 150, O‘ITI-1, and Obod. Protein content varied between 11.6% and 16.5%, with higher values in Nurafshon, O‘ITI-1, and Yangi hayot. Gluten content ranged from 25.8% to 30.9%, with superior показатели in Barqaror, O‘ITI-1, Obod, and Nurafshon. Grain vitreousness varied from 71.0% to 83.2%, indicating differences in grain structure and technological properties.

Statistical analysis revealed low variability for grain bulk density and vitreousness, while protein and gluten content showed moderate variability. The study confirmed that grain quality traits are interrelated and should be evaluated комплекс tarzda. Among the studied varieties, Obod, Barqaror, and O‘ITI-1 were identified as promising genotypes with high technological and nutritional potential. These varieties can be recommended for breeding programs and for improving wheat grain quality in agricultural production.

Winter wheat, grain quality, protein content

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