Caraway (Carum carvi L.) seed treatments and storage temperature influences potato tuber quality during storage

The present research was conducted to determine the effects of chemical and natural sprout inhibitors on potato (Solanum tuberosum ‘Agria’) tuber quality at two storage temperatures (8 oC or 15 oC). Four doses (0, 50, 100, 150 g/10 L) of ground and whole caraway (Carum carvi L.), containing high levels of S-(+)-carvone, and chlorpropham (CIPC) were applied. Tubers were stored for a total of 135 days in plastic containers (10 L) and placed in cold storage rooms at 8 °C or 15 °C with 85% relative humidity. Sprout inhibitors were applied only once at the start of experiment. At the end of 135 days the tubers stored at 8 °C had high starch and vitamin C content with a higher degree of firmness as compared to the tubers stored at 15 °C. Total soluble sugar content (TSS) of tubers increased during the storage period and the increase was high at 15 °C than 8 °C of storage condition. Low temperature storage and ground caraway treatments at high temperature caused accumulation of reducing sugars (RS). In general, ground caraway and CIPC treatments were more effective in maintaining tuber quality than the control and whole caraway treatments during the storage period.