Comparison Two Irrigation Systems, Tape and Furrow Irrigation Methodes on Yield Components of Rapeseed Cultivars in Hamedan Province

Scarcity of Irrigation water and decreasing of water resources with suitable quality are the most important limiting factors in the crop production in the most of countries such as Iran. Therefore research for optimum usage of water and economy in consume water is important policies for growing of production and the selection of cultivars with less necessity of water can help to matter.So, an experiment was carried out using a split plot design, in order to select the best irrigation and the best cultivar of oil rapeseed with a high yields of seeds and oil,.in the pattern of randomized completely block design in 3 replications. Irrigation system was the main factor at 2 levels, Tape and Furrow and cultivars as the second factor was Okapi, Slmo46, Opera and licord were evaluated in hamadan.The results showed that no significant differences in the yield of cultivars.The maximum of yield belongs to Opera cultivar with 3706 kg/ha.Irrigation and cultivars intraction were significant different at the level of 5% so that yield highest was optained from cultivar Opera with Tape irrigation system produced 3961 kg/ha and slm046 with furrow system produced 3710kg/ha as the minimum. The average of water use efficiency in Tape and Furrow irrigation was 1.34kg/m3 and 0.74 kg/m3 respectively.The average of water usage volume in Tape and Furrow irrigation was 2617 m3/ha and 4870 m3/ha respectively.