Effects of foliar treatments (bacteria Thiobacillus, glycine betaine, Thiofol and salicylic acid) on yield and physiological traits of rapeseed (Brassica napus L.) under cut irrigation

In order to investigate the effects of foliar treatments (bacteria Thiobacillus, glycine betaine, Thiofol and salicylic acid) on yield and physiological traits of rapeseed (Brassica napus L.) cultivar Zargham under cut irrigation, research was conducted randomized complete block design with nine treatments and four replications in the 2014- 15 growing season in a research farm of Islamic Azad University, Varamin-Pishva Branch, Treatments include: 1- cut Irrigation at flowering stage, 2- Irrigation cut at flowering stage, Glycine betaine, soluble (1.5 liters per thousand). 3- cut irrigation at flowering stage Glycine betaine as solubility (concentration 2.5 liters per thousand). 4- cut Irrigation at flowering stage Tiofol (1.5 liters per thousand). 5- cut Irrigation at flowering stage Thioufol (c 2 liters per thousand). 6- cut Irrigation at flowering stage Salicylic acid by (0.5 mM). 7. cut Irrigation at flowering stage Salicylic acid (1 mM). 8.
Tobacillus bio-fertilizer application by mixing with seed and cut irrigation at flowering stage. 9. Normal irrigation. Increasing grain yield in the treatment of consumption thyoflone, salicylic acid, glycine and thiobacillus can be attributed to the increase of auxin hormones and eventually increased metabolite transfer from leaves to seeds. The other reason is increased grain yield and traits such as relative water content and chlorophyll under cut irrigation interruptions using these materials, Their effect on the blockage or reduction of aperture size and the production of antioxidant enzymes such as superoxide
dismutase, which increases the production of asymilates and ultimately increases the yield.