Abstract
In this article, the influence of biostimulants on the yield of Turkestan and Pontic hawthorn varieties (Crataegus L.) was studied. Studies were conducted in 2022-2024 in the Bostanlyk district of the Tashkent region using Gumat Kaliy, Suflyor, Marka VR 20%, Ento Gumin, and Perlan 37.3% biostimulants. The results of the experiment were analyzed based on statistical methods. According to the data obtained, biostimulants significantly increased the yield of hawthorn. In particular, an additional yield of 5.1 kg/plant was obtained on average for the Turkestan variety compared to the control, while for the Pontika variety, the yield increased to 72.1%. The obtained results show that the use of biostimulants in hawthorn plantations is effective in increasing yields and ensuring the stability of the agrocenosis.