Biological activity of binary triazole preparations on soft spring wheat

Background. Integrated plant protection against diseases, pests and weeds is the most important element of agricultural technology. The use of fungicides is important not only to increase plant yields, but also to obtain high-quality crops. Most chemical plant protection products (CPPP) include molecules of organic compounds as active ingredients (AI), which are poorly soluble in water, which requires the development of formulations for them that allow for the uniform application of AI to plants and effectively protect them from diseases and pests. Materials and methods. To solve the problems of resistance, it is proposed to develop multi-component and polyfunctional seed dressings for grain crops using mechanochemical methods. The compositions obtained using this technology in the form of solid dispersions had increased solubility and a wide range of biological activity. The objects of study were triazole derivatives - tebuconazole and propiconazole, polysaccharide arabinogalactan and plant growth regulators. Results. The experimental compositions obtained in the work had a strong retardant effect on sprouts of soft spring wheat of the Novosibirskaya 31 variety. The addition of the known growth stimulator floroxan and a biostimulant in the form of silica did not help to remove this retardant effect, although the softening effect of floroxan was previously shown when using compositions based on tebuconazole. Conclusion. The use of mechanochemical modification methods for a number of triazole derivatives made it possible to obtain compositions that significantly inhibited root formation and shortened sprouts, caused abnormal germination of grains, which ultimately affected germination, as well as the accumulation of biomass in sprouts and seedlings. The obtained results confirm the prospects for the development of multicomponent drugs using mechanochemical methods to solve the problems of resistance, solubility and expansion of biological activity.