As a result, disc and seed become abscisic.The sclerotium falls down into the soil, survives winter and makes infection for next year.

• 花盘腐烂后，子粒不成熟或种仁腐烂，花盘及种子自行脱落，菌核掉入土壤中并越冬，为来年留下了菌源。