Storage of leeks. IV. Effects of temperatures and atmospheric compositions on growth of Botrytis porri.
In laboratory studies Botrytis porri only infected leeks with tissue wounds. In CA storage with combinations of 0 - 15% CO2 and 1 - 21% O2, increasing CO2 levels were associated with a reduction in the area of infected tissue. In normal storage conditions fungal growth was reduced only when the O2 concentration was low (1%). In stored leeks held for 3 or 8 days in air at 18 deg C less fungal damage developed where the CO2 concentration in the store had been high.