Abstract
Cabbage plug seedling has been popular in Japan and Alternaria sooty spot causes severe damage on them. Young seedlings of 20 cabbage cultivars were sprayed with conidial suspension of the pathogen and their susceptibilities to the disease were evaluated by severity of the symptom, which appeared in the cotyledons one week later. “Kagayaki” was the most resistant among them, but not complete. Most of the susceptible cultivars were resistant to Fusarium wilt, and many of the cultivars of spring and early summer cabbage were unstable in symptom severity of Alternaria sooty spot.
