INVESTIGATION OF THE CYTOTOXICITY OF PESTICIDE NURELL D (CYPERMETHRIN + CHLORPYRIFOS) ON BARLEY SEEDS
In recent years, pesticides have been widely used in order to increase the yield of grain crops, as well as to control pests and weeds. In the study of the genotoxicity of pesticides, model plants such as Allium sulfur L., Vicia faba and Hordeum vulgare L. are increasingly used. Plant cytogenetic test systems are not expensive, are not complicated and give reliable results. In this regard, the study of the cytotoxicity of chemicals widely used by farmers and peasants in the technology of cultivation of agricultural crops is one of the urgent tasks. This work was focused on the study of the genotoxic effects of different concentrations of the pesticide "Nurell D" (cypermethrin + chlorpyrifos) on the root cells of local barley varieties "Maksat", "Nutans 89" and "Vladlen" grown in Kyrgyzstan. The chromosomal preparations from seed roots were prepared in accordance with the commonly accepted technique. Current cytogenetic analysis of chromosomal preparations showed that 0.05% and 0.1% working solutions of the pesticides caused a higher level of chromosomal abnormalities in cells than a spontaneous level of mutation.