Potassium Salts of Terpene Acids of Siberian Pine Resin as Effective Drug in the Cultivation of Potatoes in Organic Farming

Abstract

Siberian pine is a source of a wide range of biologically active substances for use as biopesticides and growth stimulators in organic farming. Ten components, among which the share of abietic acid reached 54.8%, have been determined with the help of the gas chromatography/mass spectrometry method. Water-soluble potassium salts of terpene acids were obtained from Siberian pine resin during the work. Potassium salts of terpene acids from Siberian pine resin has bacteriostatic, fungistatic, bactericidal, and fungicidal properties against phytopathogens. Relatively high indicators of antioxidant activity of aqueous solutions of potassium salts from resin at 1 mg/mL were revealed. Pre-planting treatment of tubers with an aqueous solution of terpene acids salts of Siberian pine resin in a concentration of 10 g/L contributed to an increase in the yield of potato. Also, an increase in the mass fraction of dry matter and starch was also observed.