The paper presents quality evaluation of grain and flour from winter wheat cv. Bogatka, cultivated in the years 2007-2009 on brown soil, of the good wheat complex. Experimental factors included: plant protection (extensive, intensive), nitrogen fertilization (60, 100, 140, 180 kg N·ha^-1), time of harvest (optimum and delayed for 2 weeks) as well as the time of grain storage. Quality evaluation of the grain was carried out directly after harvest and after its half-year storage. The following parameters were determined: weight of one thousand grains, hectoliter weight, vitreousness and grain mealiness as well as the content and quality of gluten. Intensification of the plant protection level did not significantly affect hectoliter weight, grain vitreousness and gluten extensibility, however its content and a thousand grain weight increased. Increase of nitrogen fertilization affected the increase of hectoliter weight and its vitreousness, as well as the amount of washed gluten. Gluten extensibility remained constant. Harvest delay resulted in the deterioration of hectoliter weight and its vitreousness as well as in the decrease of gluten efficiency, however its extensibility did not change.

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