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Effect of Root Zone Temperature on the Growth and Quality of Single-Stemmed Rose in Cutted Rose Production Factory  

Lee Hye Jin (Dept. of Environmental Horticulture, University of Seoul)
Lee Yong-Beom (Dept. of Environmental Horticulture, University of Seoul)
Bae Jong Hyang (Division of Plant and Resource Science, Wonkwang University)
Publication Information
Journal of Bio-Environment Control / v.13, no.4, 2004 , pp. 266-270 More about this Journal
Abstract
A rose factory type is a system that enables year-round, planned and mass production of high quality cut-rose. Conversion of a conventional system to a rose factory is essential to increase cut-rose export. Controlling root Bone in culled rose production factory is very important for economic and efficient production of rose. This study was conducted to determine optimum root zone temperature of nutrient solution in single-stemmed rose production system. The optimum temperature of the nutrient solution for growth, photosynthetic and transpiration rates for 'Red Velvet' was $15\~20^{\circ}C$. Whereas the optimum temperature for 'Vital' was $10\~15^{\circ}C$. However, growth was almost sloped at $30^{\circ}C$, resulting in concluding the adaptation of 'Vital' to high temperature was poor as compared with 'Red Velvet'.
Keywords
cut flower length; net CO2 assimilation rate; plant factory; root zone temperature; transpiration rate; water use efficiency(WUE);
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