An Inoculation Technique to Assess Soybean Plants for Response to Xanthomonas campestris pv. glycines. A. A. Cook, Malang Research Institute for Food Crops, Malang, Indonesia 65101. Sri Hardaningsih, and Yusmani. Malang Research Institute for Food Crops, Malang, Indonesia 65101. Plant Dis. 74:309-310. Accepted for publication 19 October 1989. Copyright 1990 The American Phytopathological Society. DOI: 10.1094/PD-74-0309.

Cotyledons on 1-wk-old susceptible soybean plants inoculated by infiltration with 1 × 10⁴ cfu of the pustule bacterium abscised within 6 days, whereas cotyledons on resistant plants remained green and firmly attached. Bacterial populations in cotyledons on susceptible plants were 250 times greater than in cotyledons on resistant plants after 144 hr of incubation.