ISHS Acta Horticulturae 768: XXVII International Horticultural Congress - IHC2006: International Symposium on The Role of Postharvest Technology in the Globalisation of Horticulture
CUT FLOWER QUALITY EXPOSED TO SUDDEN ABNORMAL TEMPERATURE DURING LONG TERM STORAGE OF LILY BULBS |
| Authors: | Jong-Won Lee, Ji-Yong Lee, Soo-Sang Hahm, Eun-Mo Lee |
| Keywords: | malformation of flower bud, flower bud blind, flower bud blast |
| Abstract:
The objective of this study was to investigate the effect of artificially low time/temperature treatments during normal bulb storage at -1.5°C on quality of cut flowers of Oriental hybrid lily. Lily bulbs harvested in autumn were stored for up to 8 months at -1.5°C to study the feasibility of providing quality cut flower production year-round. However, occasional mechanical breakdown problems to conventional low temperature storage rooms can affect quality of bulbs exposed to abnormal low and/or high temperatures that can follow such breakdowns. Bulbs of the oriental hybrid lily ‘Casa Blanca’ bulbs were exposed to -3, -5, 15, 20°C for 3, 5, 7 d, respectively, on 30 March. and 30 May. The critical threshold duration at given temperatures that affected bulb quality was 7 d at -3°C, 3 d at -5°C, 7 d at 15°C and 5 d at 20°C . Growth and flowering was inversely affected as the duration at these abnormal temperatures increased and growth inhibition, death of plants, and leaf malformation was observed when flowers were forced. | |
Download Adobe Acrobat Reader (free software to read PDF files) | |
