Resistance of the Red Beet Cultivar Avonearly to Infection by Peronospora farinosa f.sp. betae

SUMMARY In glasshouse and field experiments, Avonearly red beet at the seedling and young plant stage was more resistant to downy mildew than several other commercial cultivars. Similar resistance was observed in Avonearly stecklings overwintered in frames or in a cool store (maximum temperature 4·4°C)for subsequent seed production. This resulted in better survival, both during the winter and the following summer, than was shown by the mildew-susceptible cv. Detroit Improved Globe.