Veremeichik G.N., Brodovskaya E.V., Butovets E.S., Lukyanchuk L.M.
Far East Agrarian Bulletin 2020; 4(56): 5-12
Soybean is one of the most important agricultural crops in the world, for it is a source of vegetable protein, oil and other by-products. Cost-effective soybean cultivation in the unfavorable climate of the Russian Far East is complicated by a variety of fungal infections, one of the most common of which is leaf spot of soybean ( Septoria glycines Hemmi). The aim of the presented work was to conduct in vitro analysis of the growth parameters of the varieties Sphere, Hefeng 25, Hodson and wild Ussuriysk soybean, that were infected with leaf spot of soybean (Septoria), and to assess the susceptibility of soybean samples to the pathogen against the provocative background. It was proved that the leaf spot (Septoria) actually inhibits the growth of wild soybean and the Hodson variety, and does not have an inhibitory effect on the development of the Sphere and Hefeng 25 varieties. When the soybean samples were tested in the field, it was found that, against an artificial infectious background of the disease, variety Sphere of Primorsky selection and Chinese variety Hefeng 25had lower percentage of infection with leaf spot (Septoria) - 67 and 65%, respectively. Wild Ussuriysk soybean proved to be more susceptible to the pathogen Septoria glycines Hemmi. The results of the work showed the possibility of using in vitro experiments involving leaf spot (agent-Septoria) infection in the selection process for breeding soybean varieties resistant to fungal infections.
