comparing with the values registered in the presence of water (control sample). When the DDW i sapplied in combination with SBPE, sunflower plant biomass accumulation was much higher than those registered for the control sample. The stimulation percentages registered for each part of theplant are the following: 141.17% – root, 94.02% – stem, 95.09% –leaf, 40.39% – calathidia, 83.06% – seeds.