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ЗНАЧЕНИЕ ООСПОР ДЛЯ ПЕРЕЗИМОВКИ И ЕЖЕГОДНОГО ВОЗОБНОВЛЕНИЯ РАЗВИТИЯ ВОЗБУДИТЕЛЯ ФИТОФТОРОЗА НА ТОМАТЕ И КАРТОФЕЛЕстатья
- Авторы: Уланова Т.И., Кузнецова М.А., Рогожин А.Н., Сметанина Т.И., Филиппов А.В.
- Журнал: Защита картофеля Научно-практический журнал
- Номер: 1
- Год издания: 2010
- Первая страница: 16
- Последняя страница: 21
- Аннотация: The role of oospores as a source for the regular late blight renewal has been studied in a long-term experiment using tomato strains of P. infestans and two tomato cultivars. The obtained results showed that oospores, generated after the mating of strains of different mating types (A1 and A2), maintained their infection ability after their overwintering in the soil. The presence of the infectious agent in the soil causes the spreading of the late blight to the overground parts of plants, manifesting itself on the bottom and other parts of the stem. Therefore, at least in the course of the next vegetation season, P. infestans oospores can be an important source of infection, causing the appearance of fi rst late blight lesions on plants
- Добавил в систему: Кузнецова Мария Алексеевна