Articles
STORAGE OF CANNA RHIZOMES
Article number
970_17
Pages
163 – 170
Language
English
Abstract
Experiments were conducted to assess environmental conditions (temperature and moisture barrier) on weight loss during storage and subsequent survival and growth of Canna rhizomes.
Weight loss during storage was highly influenced by cultivar, storage temperature (1, 4, 7 10 and 13°C) and packaging (placing rhizomes in micro-perforated plastic bags (moisture barrier) versus open storage) and two interactions involving packaging.
Weekly weight loss ANOVA results were identical throughout the 5-week storage period.
While rhizomes lost more weight when stored open or at warmer temperatures, maximum weight loss was seen with warm temperatures and open storage.
Survival (growth after planting) was affected by cultivar, the presence of a moisture barrier and by their interaction.
Regression of survival versus fresh weight loss showed a general relationship of reduced survival with increasing weight loss during storage, but differences existed between the five cultivars.
After growth in the greenhouse, final dry weight, fresh weight and height were affected by cultivar, moisture barrier, the interaction of temperature and barrier, and the three way interaction of cultivar × temperature × moisture barrier.
The main effect of temperature on these responses was non-significant.
In summary, results suggest conditions should be chosen to minimize water loss during Canna storage, and while temperature between 1 and 13°C had no direct effect on growth parameters after 5 weeks of storage, an optimum storage condition is probably 1-4°C with a moisture barrier, especially for long-term storage.
Weight loss during storage was highly influenced by cultivar, storage temperature (1, 4, 7 10 and 13°C) and packaging (placing rhizomes in micro-perforated plastic bags (moisture barrier) versus open storage) and two interactions involving packaging.
Weekly weight loss ANOVA results were identical throughout the 5-week storage period.
While rhizomes lost more weight when stored open or at warmer temperatures, maximum weight loss was seen with warm temperatures and open storage.
Survival (growth after planting) was affected by cultivar, the presence of a moisture barrier and by their interaction.
Regression of survival versus fresh weight loss showed a general relationship of reduced survival with increasing weight loss during storage, but differences existed between the five cultivars.
After growth in the greenhouse, final dry weight, fresh weight and height were affected by cultivar, moisture barrier, the interaction of temperature and barrier, and the three way interaction of cultivar × temperature × moisture barrier.
The main effect of temperature on these responses was non-significant.
In summary, results suggest conditions should be chosen to minimize water loss during Canna storage, and while temperature between 1 and 13°C had no direct effect on growth parameters after 5 weeks of storage, an optimum storage condition is probably 1-4°C with a moisture barrier, especially for long-term storage.
Publication
Authors
W. Lu, W.B. Miller
Keywords
cold storage, moisture barrier, weight loss
Online Articles (45)