ASSESSMENT OF THE BIOLOGICAL INFLUENCE OF NATURAL EMULSIFIER ON THE GROWTH AND INITIAL DEVELOPMENT OF Sinapis alba L. AND Lactuca sativa L. IN LABORATORY CONDITIONS

Under controlled laboratory conditions, the biological influence of the emulsifiers Polysorbate 80, Glyceryl Monostearate SE, and Olivem 1000 on seed germination and initial development of Sinapis alba L. and Lactuca sativa L. was evaluated and compared.It was found that the emulsifiers included in the study and the applied concentrations had an indifferent to lethal effect on seed germination and initial development of the target plants.It was found that the emulsifier Polysorbate 80 can be used in concentrations ranging from 0.05 to 0.2% v/v, while Glyceryl Monostearate SE and Olivem 1000 in concentrations not higher than 0.025% v/v when performing screening laboratory studies to establish the biocidal effect of essential oils.Further studies are needed, including validation of the obtained experimental results in laboratory and vascular trials, to establish the influence of emulsifiers in combined application with essential oils or hydrolates of plant biomass from plants with proven allelopathic potential.