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KMID : 1098420070150060429
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Korean Journal of Medicinal Crop Science
2007 Volume.15 No. 6 p.429 ~ p.433
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Effects of Growth and Flowering on Orostachys japonicus A. Berger by Nitrogen Fertilization
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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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Shoot weight of Orostachys japonicus should determine its profitability. The study was carried out to measure the effect of nitrogen (N) fertilization level (0, 5, 10, 20kg/10a) on its growth, morphological characters, and flowering. Night-break treatment of 2 hours at midnight were done since Aug. 25 when afterward samples were taken every 4 weeks to Nov. 16. Growth, morphological and flowering related characters were measured from each sample. Plant height, inflorescence length, number of leaves including bracts and stem diameter were decreased with increased N levels. Leaf and bract, floret, shoot and total dry weights as well as withering rate showed similar response to the above morphological characters. Florets were less formed with increased N levels but were not flowered due to the night-break treatment, meaning that N fertilization had little effect on its growth and anthesis of the florets.
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KEYWORD
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Orostachys japonicus, N fertilization, growth, morphological characters, flowering
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