Gr. Delchev* Department of Plant Production, Faculty of Agriculture, Trakia University, 6000 Stara Zagora, Bulgaria Abstract. During the period 2010 – 2012, on the experimental field of the Field Crops Institute, Chirpan a field experiment was carried out with imitolerant hybrid winte

G. Delchev Abstract. During the period 2010 – 2012, on the experimental field of the Field Crops Institute – Chirpan was carried out a field experiment with conventional Maximus hybrid PR44D06 (Brassica napus). A total of 15 variants were investigated. Canola hybrid from Maximus