ANALYSIS OF NEMATODES FOUND IN THE SOIL OF THE RHIZOSPHERE COISIMA RADIANS (NURLI KARRAK) IN OKHALIKSOY AREA OF SAMARKAND, UZBEKISTAN

Abstract

Our research is devoted to the study of the nematodafauna and its biocenotic features of some medicinal plants in the mountain ecosystem of Samarkand region in 2023-2024. As part of this research, the Coisima radians nematodafauna distributed in biocenosis of mountain was analyzed. Nematodes were found in 26 of 40 plant and soil samples taken from a depth of up to 20 cm of the shoot system of the Coisima radians plant, the root system and the rhizosphere. [1] This figure was distributed as follows in an equal number of samples taken from the plant and soil, i.e. nematodes were found in 2 out of 10 samples taken from the shoot system of the plant, 5 out of 10 samples from the root system, 10 out of 10 samples taken from 0-10 cm layers of rhizosphere soil, and 9 out of some samples from 10-20 cm layers of the rhizosphere soil.