The purpose of the research is to follow the influence of the biological factor on iron content of nine varieties of winter wheat: Alex, Potenzial, Soissons, Kalango, Apache, Kristina, Lovrin 34, Chevalier and Panonnikus. Two of these (Potenzial, Chevalier) are of German origin, three (Apache, Kalango, Soissons) of French origin, one (Kristina) of Yugoslavian origin, one of Austrian origin (Panonnikus) and two (Alex and Lovrin 34) were created at S.C.D.A Lovrin, Romania. The experimental field was placed on a cambic chernozem in Timisoara (west of Romania) in 2010, and the fertilization level was N120P60K60. Quality parameters monitored were: moisture, protein content, hectolitre mass and iron content. Variation in the iron content of different winter wheat cultivars was found in this study. Soissons winter wheat cultivar registered the highest value of iron content (54.3 mg/kg dry matter) followed by Kristina (52.07 mg/kg dry matter) and Kalango (50.45 mg/kg dry matter) winter wheat cultivar. Potenzial and Apache winter wheat cultivars registered the lowest values of iron content: 21.29 (mg/kg dry matter) and 20.5 (mg/kg dry matter), respectively
