Center rot caused by Pantoea ananatis is a widely prevalent bacterial disease of onion in the southeastern United States. P. ananatis infection leads to yellowish-brown discoloration and rotting of internal scales. This report evaluates the screening of 48 commercial onion cultivars, grown in Vidalia, Georgia, against P. ananatis using a whole bulb inoculation assay. Onion bulbs were inoculated with P. ananatis (PNA 97-1), and the bulb rot severity was evaluated. Results of this study could inform the Vidalia onion growers in selecting onion cultivars with comparatively less symptom severity.
Koirala et al. (Tue,) studied this question.
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