New strain, root cancer control agent and / or plant seed germination rate improver using the new strain

摘要

SUMMARY PROBLEMS To provide a non-pathogenic fungus that can be used as a biopesticide and the like, exhibiting a stable root cancer control effect and an improvement effect on the germination rate of plant seeds in an actual crop production site. The present invention relates to Rhizobium vitis ARK-1 strain (FERM BP-11426), Rhizobium vitis ARK-2 strain (FERM BP-11427), Rhizobium Vitis (Rhizobium AR). -3 strain (FERM BP-11428). Moreover, 1 or 2 or more of microbial cells selected from the group consisting of these three strains and / or cultures of microbial cells as active ingredients, and / or Plant seed germination rate improver. Furthermore, the present invention is a method for controlling root cancer disease and / or a method for improving the germination rate of plant seeds, comprising the step of bringing this agent into contact with plants or plant seeds. Figure 1