Effect of planting date and plant density on morphological traits and yield of four varieties of canola (Brassica napus L.) in Astara region

In order to determine of plant density and planting date on morphological traits and yield of Canola a field experimental was conducted in 2008 at Astara region in a Split plot factorial in complete block design with four varieties and three replicates. Treatments were: planting date (08/10/13 and 08/10/28) and two level plant density (42 and 84 plants per m(2)). Mean comparison showed that in plant height, Global with 91.91 cm, maximum height and Falcon with 80.46cm height had the lowest (Table 2). Falcon with a 6/729 cm maximum length pods and PF7045 with 5.615 cm, had the lowest pod length. Mean comparison of Variety showed that maximum plant height, yield in plant, biomass plant, yield in plot, oil percentage and number of pods per plant was obtained in Global. Comparison of interaction between Planting date and density, for number of pods per plant showed that the highest number of pods per plant was obtained the first and the second density. [Jafar Azimi, Marefat Ghasemi, Ali Khatami and Mohsen Hanifi. Effect of planting date and plant density on morphological traits and yield of four varieties of canola (Brassica napus L.) in Astara region. Life Sci J 2012;9(4):4120-4124]. (ISSN: 1097-8135). http://www.lifesciencesite.com. 613