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KMID : 1098420070150040256
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Korean Journal of Medicinal Crop Science
2007 Volume.15 No. 4 p.256 ~ p.260
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Effect of Night-break Treatment on Growth and Flowering of Orostachys japonicus A. Berger
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Lee Chang-Woo
Kang Jin-Ho
Jeon Seung-Ho
Shin Sung-Chul
Kim Hong-Young
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Abstract
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Year-round cultivation of a monocarpic plant Orostachys japonicus should be possible in case to controlling floret flowering. To give some information on its year-round cultivation, this study was carried out to examine the effect of night-break treatment time (June 10, Aug. 25) on its growth, morphological characters, and flowering. Night-break treatment of 2 hours at midnight were done since Aug. 25 and heating were made under Samples were taken every 4 weeks from Aug. 25. Growth, morphological and flowering related characters were measured from each sample until March 9. Plant height, inflorescence length, number of leaves including bracts and stem diameter were greater in the earlier treatment than in the later one. Leaves and bracts, floret, stem, root, shoot and total dry weights showed the same response as plant height did to the night-break treatment time. Florets were more formed in the earlier treatment than in the later treatment in which they were flowered only on March 9, meaning that its year-round cultivation should be possible under night-break treatment before bolting and heating during winter season.
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KEYWORD
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Orostachys japonicus, night-break treatment time, growth, morphological characters, flowering
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