Each period has a specific function. The curing period immediately following harvest, often referred to as the suberization of wound healing period, is one of the most important storage phases. Weight loss is highest during the curing period due to moisture loss from cuts and bruises and high respiration rate. As much as two to four percent of tuber weight can be lost in the form of water during the first month. If the storage is managed properly, this water loss can be used to maintain the high relative humidity needed during the wound healing period.
Wound healing is dependent on temperature and relative humidity.
If the relative humidity is low, suberization is poor and a starch layer may form over the bruise, thus preventing healing . Poor suberization encourages rot and excessive moisture loss throughout the storage season. Uniform air movement is necessary during curing to remove respiration and field heat, to supply oxygen, and to prevent condensation within the pile. Without a humidifier, use only the naturally occurring humid air for ventilation. This will provide sufficient oxygen and minimize moisture loss.