Effect of some Growth regulators on Seed germination characters and Seedling primary growth of Canola ( Brassica napus L. )

In order to study on effect of Salicylic acid (SA) and Methyl Jasmonate on germination and seedling growth of canola Hyola401 cultivar, this research in laboratory and greenhouse were conducted based on completely randomized design (CRD) by four replications. Salicylic acid (SA) and Methyl Jasmonate concentration levels respectively were 0, 0.05, 0.1, 0.5, 1, 1.5 mM and 1, 3, 5, 10 and 12 andmicro;m and effects of those on germination percent, days number to 50% germination (G50), primary shoot and root length in laboratory and seedlings final emergence percent, days number to seedlings 50% emergence (E50), days number between seedlings 10 to 90% emergence (E10-90), seedlings chlorophyll content and remind seedlings number at end of experiment (seedling survival) were determined. Results showed that Salicylic acid (SA) and Methyl Jasmonate significantly improves germination percent, days number to 50% germination (G50), primary shoot and root lengthin canola seed compared with control. Also Salicylic acid (SA) and Methyl Jasmonate also increase chlorophyll content and seedling survival compared with control and among variousstudied Salicylic acid (SA) concentration levels 0.1 mM and 5 andmicro;m Methyl Jasmonate caused most improved germinatin characters.