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Bacterial Blight of Soybean: Seedling Disease Control. Curt Leben, Department of Plant Pathology, The Ohio State University, and Ohio Agricultural Research and Development Center, Wooster, Ohio 44691; Phytopathology 65:844-847. Accepted for publication 26 February 1975. DOI: 10.1094/Phyto-65-844.

A seedling assay method was used to determine if chemicals or antagonistic bacteria applied to soybean seed reduced the seedling disease incited by Pseudomonas glycinea. The method also was used for assaying seed produced in the greenhouse and in the field. One antibiotic, oxytetracycline hydrochloride, and an antagonistic bacterium derived from the seed coat, reduced disease. Plants from pathogen-bearing seed produced "bacterial blight-free" seed in the greenhouse; this seed, planted in limited isolation in the field produced healthy plants which yielded seed that did not carry the pathogen as determined by the assay.

Additional keywords: biological control.