In this paper we present the study over a period of three experimental years of the impact of climate conditions on the rate evolution of raw protein content (%) and wet gluten content (%) in two winter wheat cultivars (Alex and Romulus). Researches were performed in the experimental field belonging to the Didactic Station Timisoara during the agricultural years 2004/2005, 2005/2006 and 2006/2007. The experiment was placed on a cambic chernozem, medium levigated, slightly gleyied, clay-loamy, with a humus content of 3,41%, medium provided with mobile phosphor (17,8 ppm), with a high content in assimilable potassium (187,6 ppm) and neutral reaction (pH 6,85) within the arable horizon. The report between the raw protein content(%) and wet gluten content(%) registered a tendency of decreasing in the ensemble of the researches period, being 0,52 in 2005, 0,0443 in 2006 and 0,441 in 2007. The climatically conditions determined a decreasing of this rate value due to the reducing of wheat kernel aglutenic proteins.