The paper includes the results of comparative studies regarding the influence of irrigation on the rape yield culture in two areas of Transylvania devoted respectively Turda (2007-2009) and the Satu Mare (2009-2011). In experiments tested various biological material, varieties and hybrids with high yield. The experiences factors studied of Turda were - factor A - irrigation regime, factor B - fertilization, factor C - cultivar, and in the biological material selected from Satu Mare - factor A - water regime, factor B - variety, especially biological material factor C - plant density. Keywords: