Pre and postharvest temperature conditioning of greenhouse-grown sweet basil
Lange, D.L. and Cameron, A. C.
HortScience Vol: 32 Issue: 1 Pages: 114-116
1997
บทคัดย่อ
Postharvest shelf life (defined by visual quality) of fresh, greenhouse-grown sweet basil (Ocimum basilicum L.) at 5 degrees C was only 3 to 4 d due to the appearance of chilling injury symptoms. Plants chill-hardened at 10 degrees C for 4 h daily (2 h at the end of the light period and 2 h at the beginning of the dark period) for 2 d, before harvesting and packaging, had approximately 3 d longer postharvest life. Four- to 6-week-old plants were chill-hardened for 1 week at several periods during the day. Chill-hardening at the beginning of the day extended the average shelf life of cuttings from 4- to 5-week-old plants by 1 and 1.5 d, respectively. Shelf life either was decreased or not affected by the other periods of preharvest hardening. More importantly, postharvest chill-hardening of packaged sweet basil for 1 day at 10 degrees C in darkness before transfer to 5 degrees C increased average shelf life by 5 d. Good potential exists for postharvest chill-hardening of packaged sweet basil since this method is effective and convenient.