Laboratory assessment of fungicide efficiency against seed infection of soy- bean

The research was conducted in the laboratory of plant protection of the agrotechnological department of the V.S. Pustovoit All-Russian Research Institute of Oil Crops in 2019. The purpose of the research was search of the effective preparations with fungicide and bacterial actions for soybean seed protection against seed infection in the lab conditions. We tested 17 fungicides of the different penetration methods and actions permitted for application in the Russian Federation, nine of which are register on soybean and nine ones have a potential effect for studying crop. Seed for lab germination were rolled in filter paper in the moister chamber due to the State Standards 12038-84 and 12044-93. Laboratory germination of soybean seed in control without treatment was equal to 61.5%, whereas in variants with protectant application - by 4.0-28.0% higher as seed infection was lowered. High biological efficiency against bacterial diseases was noted for registered on soybean fungicides Vitalon, CS (56.9%), ТМТD, WDG (51.1%), Delit Pro, CS (51.1%), and for nonregistered preparations - Prozaro, EC (53.2%), Tebu 60, OE (43.6%) and Prozaro Quantum, EC (40.4%) as infection in control was equal to 46.0%. Fusariose infection of soybean seeds and seedlings was lower than with bacterial disease and equal to 17.0% in control. Among registered on soybean preparations Spirit, SC (93.9%), Acanto Plus, CS (88.3%), Maxim Gold, CS, Vitalon, CS (82.2%), Delit Pro, КС (72.0%) demonstrated effectiveness against fusariose at efficiency of etalon TMTD, WSC of 32.0%. Among non-registered preparation effective were Lamador, CS and Zato, WDG (100%), Oplot Trio, WSC (82.2 %), Redigo Pro, CS (73.7%) and Raxil Ultra, CS (68.0%). Due to results of laboratory testing, Vitalon, CS; Prozaro, CE; Prozaro Quantum, CE; TMTD, WSC; Tebu 60, OE and Delit Pro, CS are the best fungicides with bacterial effect.