The effect of copper on the germination of seeds of several agricultural plants, namely, common vetch, white mustard and oats in the presence of Rhodoccocus-biosurfactants was studied. As a result of the conducted studies it was established that Avena sativa L. was the most stable plant to the action of copper, and Vicia sativa L. was a less stable plant. By the copper resistance degree, the plants used in the work could be arranged in the series: Avena sativa L. > Sinapis alba L. > Vicia sativa L.