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http://dx.doi.org/10.7235/hort.2013.13049

Effect of Mist Treatment on the Growth and Quality of Cut Rose 'Hanmaum' during Summer  

Chon, Young Shin (Department of Horticultural Science, Gyeongnam National University of Science and Technology)
Ha, Su Hyeon (Department of Horticultural Science, Gyeongnam National University of Science and Technology)
Jeong, Kyeong Jin (Department of Horticultural Science, Gyeongnam National University of Science and Technology)
Choi, Kyoung Ok (Department of Horticultural Science, Gyeongnam National University of Science and Technology)
Yun, Jae Gill (Department of Horticultural Science, Gyeongnam National University of Science and Technology)
Publication Information
Horticultural Science & Technology / v.31, no.5, 2013 , pp. 538-543 More about this Journal
Abstract
During summer in Korea, the excessively high temperature causes growth retardation and quality reduction in cut roses grown in greenhouse. Mist treatments were conducted to reduce the temperature and avoid quality reduction of cut roses. The temperature change in the greenhouse, growth and quality of cut roses, and injuries caused by insects or fungi were investigated during mist treatment. Daily maximum temperature reduced as the number of mist treatment increased, resulting in $6^{\circ}C$ reduction by mist treatment for 10 seconds at 5 min interval. This temperature reduction occurred only when maximum temperature was over $40^{\circ}C$ in greenhouse, and not when it was less than $40^{\circ}C$ or rainy and/or cloudy day. Plant height and fresh weight of the cut roses were increased at the range of 10-20% by mist treatment. As frequency of mist treatment increased, however, malformed flowers increased and vase life of cut rose was largely shortened. The injuries by insects like as beet armyworm larvae and scale insect increased as well. In conclusion, it is recommended that mist treatment must be used when the daily maximum temperature in a green house is over $40^{\circ}C$ and forecasting for disease or insects should be conducted as well.
Keywords
cut flower; high temperature injury; insect injury; relative humidity; vase life;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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