ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Postharvest performance of southern highbush blueberry fruit.

Lang, G. A.; Tao, J.;

HortTechnology Year: 1992 Vol: 2 Issue: 3 Pages: 366-370 Ref: 21 ref.

1992

บทคัดย่อ

Fruit quality was evaluated in 2 early ripening southern highbush blueberry ((Vaccinium corymbosum x V. darrowii) x V. ashei) cultivars during storage and simulated retail conditions. In general, Gulfcoast fruits were 28% heavier than Sharpblue fruits; the latter had a higher percentage soluble solids concentration (SSC) and lower titratable acidity (TA). Quality loss, as determined by changes in fresh weight, SSC, pH or TA, and percentage decayed fruits were insignificant in first-harvest fruits of either cultivar stored at 2 deg C for up to 7 days. Transfer of fruits stored at 2 deg for 3 days to simulated retail conditions at 21 deg for 4 days significantly increased fresh weight loss and decay (mainly caused by Botrytis and Colletotrichum spp.), but not beyond levels deemed unmarketable. Second-harvest fruits were smaller than first-harvest fruits and, of these, Sharpblue fruits were more prone to decay than Gulfcoast fruits. However, fruit quality of both cultivars was acceptable after 11 days at 2 deg . Retail quality, as influenced by decay incidence, was acceptable after 3 days at 2 deg plus 4 days at 21 deg , but not after 3 days at 2 deg plus 8 days at 21 deg . Overall, fruits of these early ripening cultivars performed well under postharvest conditions and are suitable for expanding production of premium fresh blueberries by growers in the Gulf coastal plains.