A test of endophytic Bacillus subtilis 11РН strain against spring wheat head blight

The effect of the preparation on bases of Bacillus subtilis 11РН strain with high antagonistic activity against Fusarium fungi has been researched in field conditions. It has been shown that endophytic antagonist B. subtilis 11РН is more effective in decreasing grain head blight prevalence than well-known systemic fungicides. It has been established that efficacy of Fusarium infection protection of spring wheat ear increases when seeds and ears are treated in an aggregate. It has been revealed while treating grain with fungicides and biopreparations that there is a tendency to predominance of the species the most representative in the searching natural agricultural zone.本研究在田间条件下，针对以对镰刀菌属真菌（Fusarium fungi）具有高拮抗活性的枯草芽孢杆菌（Bacillus subtilis）11РН菌株为基础制备的制剂的防控效果展开了探究。研究表明，该内生拮抗枯草芽孢杆菌11РН菌株在降低小麦穗腐病（grain head blight）发病率方面，其防控效果优于常规内吸性杀菌剂（systemic fungicides）。此外，当采用种子与穗部联合处理的施用方式时，春小麦穗部对镰刀菌属真菌侵染的防护效能可得到提升。研究还发现，在使用杀菌剂与生物制剂处理谷物时，在所调研的自然农业区中最具代表性的物种存在占据优势的趋势。