ABSTRACT
To investigate the yield of different cultivars of canola and selection of cultivars with high production andappropriate to cold areas of Lorestan Province, an experiment was carried out in a complete randomized blockdesign with 13 cultivars and 4 lines and three replications in Biranshahr area of Khorramabad city in the cropyear of 2017-2018. The results of the analysis of variance showed that plant height, number of siliques, numberof seeds per silique, number of secondary branches, pod length, 1000-seed weight, and seed yield weresignificant in different cultivars of canola. Comparing of the means revealed that the highest yield with 4745kg/ha belonged to Atura cultivar and the lowest yield with 2042 kg/ha belonged to Ahmadi cultivar. Out of 17cultivars and lines of study, the cultivars and lines of Atura, X-Power, line 144, Brutus, line 1008, Nepton andExtertum had superior yield compared with other cultivars and lines. To assess the stability of these cultivarsand lines in other areas, similar studies are recommended.