The Effect of the Drug Bio Root Plus on the Yield and Quality of Root-Related Seedlings when Propagated by Shortened Lignified

The materials and results of research on the use of Bio Root Plus, produced in France, the effect of which has not been studied in the cultivation of grape seedlings, are presented. For the first time, the degree of influence of the drug on the regenerative activity of shortened grape cuttings was established with the industrial technology of growing seedlings using mulching polyethylene film and drip irrigation in the school. The regulations for the use of Bio Root Plus have been developed. The main research was carried out in the conditions of LLC “Agrovin - Sultan” of the Shelkovsky district of the Chechen Republic. The most developed root system in seedlings is formed when the cuttings are treated with Bio Root Plus at a concentration of 0.5%. In this variant, the best results were obtained in terms of growth – 100.7 cm versus 69.7 cm in the control. The ripening of shoots at the same time was 90.3%, and in the control only 70%. The leaf surface area was noted in this variant of 1200 cm2, which is 234 cm2 more than the control and 88 cm2 more than when treated with heteroauxin. The highest yield of seedlings of 385 pieces per 1 hectare was obtained when Bio Root Plus was processed at a concentration of 0.5%, which is more than when used in the production of heteroauxin by 13,000 pieces. The highest profitability – 317.9% was obtained in the same variant, and 64.1% less when treated with heteroauxin. The conducted studies allow us to recommend the preparation of Bio Root Plus in a concentration of 0.5% in the production of root-related seedlings