BIOSTIMULANTS REGOPLANT AND STIMPO IN ONION GROWING TECHNOLOGY

The introduction of growth regulating substances in the technological process of growing major crops, which in low doses can increase the potential of plant biological productivity within the normal genotype response, enhance their adaptive capacity to environmental stressors, additionally obtain about 20-30% of additional agricultural products, and contribute to soil health, remains an urgent issue [1-3].

In the first year of the invasion of Ukraine by Russian aggressors, total exports of goods from Ukraine decreased, but according to the Ministry of Economy, in January 2024, Ukraine exported the largest volume of goods since the beginning of the full-scale invasion [4]. The list of such goods includes domestic plant growth regulators (PGRs).

Regoplant and Stimpo are effective composite polyfunctional preparations - inducers of immunoprotective properties of plants, created by the state enterprise Interdepartmental Scientific and Technological Centre Agribiotech of the National Academy of Sciences and Ministry of Education and Science of Ukraine, whose bioprotective properties are due to the synergistic effect of the interaction of the in vitro life products of the fungus-micro-mycete Cylindrocarpon obtisiucuilum 680, isolated from the root system of ginseng, and aversectins - complex antiparasitic macrolide antibiotics, metabolic products of the soil streptomycete Streptomyces avermitilis. In addition, they contain a mixture of amino acids, carbohydrates, fatty acids, polysaccharides, phytohormones, and trace elements