Wound curing in different time on dry rot and quality of potatoes during storage at room temperature

Effects of different wound curing time were studied on incidence and index of dry rot, germination and sprout length, weight loss and greening of potato tubers stored at the room temperature.Results showed that wound curing decreased disease incidence and index of dry rot of wounded tubers inoculated by Fusarium sulphureum, the longer the wound curing, the better the disease control.Wound curing inhibited the germination of tubers, however, wound curing promoted the sprout length of germinated tubers.Weight loss decreased in wounded tubers treated with a longer curing.No significant difference was found on tuber greening among the three treatments.It was suggested that wound curing could promote the formation of the periderm, improve the resistance of tubers, suppress effectively dry rot and reduce germination and weight loss of tubers.