UDC 635-153/632.93
https://doi.org/10.25630/PAV.2021.69.23.004
Sokolova L.M., Yanchenko A.V., Fedosov A.Yu., Azopkov M.I., Golubovich V.S.
One of the most common root vegetables in vegetable growing are carrots and beets. One of the important signs of qualitative changes is the absence of diseases transmitted through seeds. Effective control of plant diseases is crucial for the reliable production of vegetables and can potentially lead to a significant reduction in the use of water, land, fuel and other resources in agriculture. The presence of pathogens transmitted through seeds in seeds either prevents germination, or can lead to epiphytotics of diseases due to the transmission of the pathogen from the seed to the plant. In recent years, there has been an increase in the number of diseases caused by phytopathogenic fungi, bacteria and viruses. Depending on the weather conditions and the phytosanitary condition of crops, the prevalence of diseases can reach 70-80% of the entire plant population, and the yield can decrease in some cases by 80-98%. The purpose of the research is to identify the infection and generic affiliation of the pathocomplex of fungal diseases on carrot and beet seeds, as well as to choose the optimal seed treatment regime. Heat treatment of seeds is a viable alternative to chemical treatment for the destruction of pathogens. The task of heat treatment is to find the best combination of time and temperature that maximizes the reduction in the survival of pathogens with minimal destructive effects on seeds. The main assumption justifying heat treatment is more sensitive to high-temperature stress than seeds. The target pathogenic microorganisms are mainly fungi, viruses and bacteria located on the surface and inside the seeds. This article shows the effect of heat treatment of table beet and carrot seeds on germination and their infection with pathogens. The high efficiency of heat treatment of table beet and carrot seeds against Alternaria is shown. A visual assessment of the effectiveness of heat treatment on the Czapek nutrient medium was carried out.
Key words: vegetable crops, seeds, pre-sowing preparation, phytopathogens
Sokolova L.M., Cand. Sci. (Agr.), leading research fellow, department of breeding and seed production of ARRIVG– branch of FSBSI FSVС. E-mail: lsokolova74@mail.ru
Yanchenko A.V., Cand. Sci. (Agr.), leading research fellow, department of industrial technologies and innovations of ARRIVG – branch of FSBSI FSVС. E-mail: laboratoria2008@yandex.ru
Fedosov A.Yu., junior research fellow, department of industrial technologies and innovations of ARRIVG – branch of the FSBSI FSVС. E-mail: fffed@rambler.ru
Azopkov M.I., Cand. Sci. (Agr.), leading research fellow, department of industrial technologies and innovations of ARRIVG – branch of the FSBSI FSVС. E-mail: max.az62@yandex.ru
Golubovich V.S., Cand. Sci. (Agr.), senior research fellow, department of industrial technologies and innovations of ARRIVG – branch of the FSBSI FSVС. E-mail: ded44@yandex.ru
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