VIEW ARTICLE

Soybean Bacterial Blight: Flower Inoculation Studies. Paul H. Kauffman, Department of Plant Pathology, The Ohio State University and Ohio Agricultural Research and Development Center, Wooster 44691, Present address: Ohio Department of Agriculture Laboratories, Division of Plant Industry, Plant Pest Control, Reynoldsburg 43068; Curt Leben, Department of Plant Pathology, The Ohio State University and Ohio Agricultural Research and Development Center, Wooster 44691. Phytopathology 64:329-331. Accepted for publication 31 August 1973. DOI: 10.1094/Phyto-64-329.

Soybean flowers were inoculated with Pseudomonas glycinea, and the resulting pods were surface-sterilized, opened, and assayed in vitro for the pathogen. With greenhouse and field inoculations, P. glycinea was detected in the interior of 15% of the pods, usually at the proximal end. In the field tests, the pathogen was not associated with seeds in infected pods, but in the greenhouse it was associated with seeds in 25% of these pods. Other types of bacteria were isolated from within pods of inoculated and control plants. Pod set was not reduced by flower inoculation.