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Effect of Nutrient Supply Cut-off Periods Before Harvest on Storability of Chicon  

Jung, Hyun-Jin (Dept. of Horticulture, Kangwon Nat'l. Univ.)
Choi, In-Lee (Dept. of Horticulture, Kangwon Nat'l. Univ.)
Son, Jin-Sung (Dept. of Horticulture, Kangwon Nat'l. Univ.)
Seo, Hyun-Taek (Dept. of Horticulture, Kangwon Nat'l. Univ.)
Won, Jae-Hee (Gangwon Provincial ARES)
Kang, Ho-Min (Dept. of Horticulture, Kangwon Nat'l. Univ.)
Publication Information
Journal of Bio-Environment Control / v.20, no.4, 2011 , pp. 406-411 More about this Journal
Abstract
This study was conducted to find out the effect of cut-off period (0 hour, 3 hours, 6 hours, 12 hours, and 24 hours) to supply nutrient solution for chicon forcing at that was predrying treatment on the storability of chicon. The cut-off treatment increased dry matter rate, respiration rate, and ethylene production rate. The dry matter rate of chicon increased, as the cut-off period increased, but the respiration rate and ethylene production rate of chicon was highest in 12 hours and 6 hours cut-off treatment, respectively, and then their rates decreased, as the cut-off period prolonged. The weight loss at cut-off 6 hours treatment was lower than other treatments during $10^{\circ}C$ storage temperature. The cut-off 6 hours treatment showed higher carbon dioxide and oxygen concentration in 10,000 cc/$m^2$/day/atm oxygen permeability film package during storage period than control and showed a little predrying effect but was not statistically significant. At $4^{th}$ day, the ethylene concentration reached higher than other storage day and after that decreased but was not statistically significant. The quality of chicon for 3 hours, 6 hours, 24 hours cut-off treatments on storability showed higher than other treatments, accordingly. The 6 hours cut-off treatment showed the inhibited effect of the degree of browning of chicon cutting plane. The effect of 6 hours cut-off treatment on storability of chicon showed proper predrying effect, reduced moisture loss and browning inhibition apparently during $10^{\circ}C$ storage.
Keywords
carbon dioxide; ethylene; nutrient supply; oxygen; visual quality;
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Times Cited By KSCI : 3  (Citation Analysis)
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