Study on suitable temperature and humidity conditions of blueberry storage

Suitable temperature and humidity conditions of blueberries storage were studied. Correlation between freezing point temperature and soluble solid content was discussed,and also storage time of blueberries under suitable temperature and humidity was researched. Results showed that the range of freezing point temperature among “Duke” “Bluecrop” “Brigitta” “Elliot” and “Premier” varieties was no significant difference,and that was-4.2~-0.4 ℃. The relative humidity from 85% to 95% for every 10% decline,and the weight loss rate increased by 0.2%~0.5%. Consequently,suitable conditions for blueberry storing were obtained,as 0~0.5 ℃ and 85%~95%. There was very significant(p<0.01) negative correlation between freezing point temperature and soluble solid content,and pearson coefficient was 0.552. With the storage condition at the temperature of 0 ~0.5 ℃,humidity of 85% ~95% prolonged cold storage to 30 ~40 days. After 30 ~40 days of cold storage,temporary storage of 7 d at 10 ℃ or 2 d at 25 ℃,the rate of good fruit reached to 90%.