عنوان مقاله [English]
In order to evaluation of effect of physical treatments on growth and effective ingredients of ribwort plantain (Plantago lanceolata) laboratory, green house and field experiments were performed in Islamic Azad University, Tabriz Branch, Iran during 2014 in three replications. Treatments were ultrasonic wave, laser, magnetic field, gamma and beta irradiations for 5, 10 and 15 minutes on wetted seeds included control. Seeds under magnetic field for 5 and 10 min. germinated after 11 days, while seeds under ultrasonication and laser treatments germinated after 13.2 days. Treatments studied lead to significant decrease in time to taken to 50% of emergence of seedling and mean emergence time compared to the control. Final emergence percentage in seeds under magnetic field and ultrasonic wave were 73.7%, but only 58.7% from seeds treated under gamma and beta irradiations. With increasing of exposure time of magnetic field seedling vigor index reduced significant. Seed yield in those seeds under magnetic field increased 8.5 g m-2 compared to mean of control, ultrasonic wave and laser. Seed turgidity index ranged from 0.77 mL in gamma and beta irradiations up to 1.47 mL in magnetic field treatments. Regression analysis revealed that the role of final emergence percentage and seedling vigor index in seed yield explanation were 1.8 and 1.7 times greater than time to taken to 50% of emergence of seedling, respectively. In ribwort plantain with treatment of seeds under magnetic field farmers could improve seedling vigor and increase yield and effective ingredients.