Biological make-up of soil and seed infection by the root rot pathogen (Bipolaris sorokiniana) of barley in the Southeastern Region of Kazakhstan
2022
Rysbekova, Alua M. | Sultanova, Nadira Zh
One of the important factors for the sustainable development of the agricultural industry in Kazakhstan is the prevention of crop losses due to plant diseases. The purpose of the paper is to study the biological characteristics of soil and seed infection by the common root rot pathogen (Bipolaris sorokiniana) in barley in the Southeastern Region of Kazakhstan. The scientific novelty of the study is due to the fact that the plant protection systems, existing in the region, in most cases based on the use of chemicals, even with high efficiency, are not able to provide long-term stabilisation of the phytosanitary situation in the cereal crops agrocenoses and their compliance with modern environmental requirements. Within the framework of this study, the dependence of the temperature conditions on the time and quality of rot development was found. The practical significance of the study lies in the fact that in the modern strategy and tactics of plant protection, great importance is attached to the design of agrocenosis, optimised by phytosanitary characteristics, where the number of pests is reduced to economic thresholds of harmfulness. It was concluded that the main pathogen of barley root rot is the Bipolaris sorokiniana Shoem. fungus, the parasitic frequency of which reached 65%.
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