Abstract
Clavibacter michiganensis subsp. michiganensis, the causal agent of bacterial canker, was eradicated from naturally infected tomato (Lycopersicon esculentum) seeds that were soaked in 0.6 M HCl for 5 hr, in 0.25 or 0.50% acidified cupric acetate (ACA) for 20 min, or in water at 52 C for 20 min or at 56 C for 30 min. Other individual treatments failed to eradicate the pathogen. Most treatments reduced the saprophytic bacterial flora on tomato seeds; however, only the HCl treatment and treatment with ACA (0.25%) at 52 C for 20 min eradicated saprophytes. Germination of treated seed varied with the germination test (.)
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