Abstract

The article considers the effect of cross-linked copolymer of potassium and ammonium salts of acrylic acid "Aquasin" on grapevine plants that were freed from contamination through the cul-ture in vitro. The study was held on the basis of Ya.I. Potapenko All-Russian Research Institute for Viticulture and Winemaking on the native Don variety Krasnostop zolotovsky. The aim of the work was to study the effectiveness of the use of hydrogel for the post vitro stage. The ways of its application were investigated. Hy-drogel was added to the soil substrate in a dry form and in a gel-like form saturated with nu-trients. As a result, it was noted that the hydro-gel does not affect survival. For all variants of the experiment, it was 98‒100 %. There was a positive effect of adding the water-retaining drug Aquasin to the substrate on the growth and development of plants. This was especially reflected in such indicators as leaf surface area, maturation and diameter of shoots. The positive effect was achieved on the 80‒90 day of adap-tation. In addition, the possibility of pre-saturation of the superabsorbent with im-munostimulants or fertilizers is of interest. Plant height and leaf area were maximal in the vari-ant with the addition of hydrogel saturated with an aqueous solution of minerals

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