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KMID : 1098420050130030114
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Korean Journal of Medicinal Crop Science
2005 Volume.13 No. 3 p.114 ~ p.117
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Growth and Flowering of Orostachys japonicus A. Berger by Controlling Daylengths
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Kang Jin-Ho
Jeon Seung-Ho
Yoon Soo-Young
Hong Dong-Oh
Shin Sung-Chul
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Abstract
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Orostachys japonicus, called Wasong as herbal medicine and a short day plant, should be artificially kept in long daylength to control anthesis of its florets. The study was done to clarify the effect of daylength (10, 13, 16 hours a day) on growth, morphological characters, and flowering. The treatments were done on August 25 and afterward samples were taken every 2 weeks. Growth, morphological and flowering related characters were measured from each sample. With longer daylength plant height and inflorescence length were increased but number of leaves including bracts and stem diameter were decreased. Leaves and bracts, stem, root, shoot and total dry weights were increased with longer daylength from late September while floret dry weight showed reverse result. Florets formed were the greatest in daylength of 10 hours during September but the least during the other period. Anthesis of the florets was observed only in daylength of 10 hours during October and all the plants from the treatment were flowered.
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KEYWORD
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Orostachys japonicus, daylength, growth, morphological characters, anthesis
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