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Abstract
The effect of glycoside linaroside on the germination of soybean seeds Glycine max L. was studied. Exogenous treatment of soybean seeds variety Amelina was carried out by swelling the seeds for 1.5 hours between sheets of filter paper moistened with distilled water (control) or 0.001% aqueous solution of linaroside. Then, control (treatment with distilled water) seeds and seeds treated with a 0.001% solution of linaroside were placed on Petri dishes with different solutions: distilled water and solutions with osmotic pressure of 0.5 MPa: water stress (PEG 6000), salt stress (sodium bicarbonate) and complex water-salt stress (PEG 6000 + sodium bicarbonate). The number of germinated seeds and lengths of their primary root were counted at 3 and 6 days of germination at 25 °C. Upon all stresses the energy of germination, germination and root length were significantly reduced. Exogenous seed treatment with linaroside resulted in an increase in germination energy upon complex (water-salt) stress and in an increase in germination upon sodium bicarbonate.