• Journal of agriculture & life science
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• v.43 no.2
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• pp.47-53
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• 2009

This research is intended to study the induction net of chrysanthemum used in its greenhouse and requiring lots of time for manual work and review the structural safety of a bed and existing greenhouses after designing the bed of a net which increases cropping period by sharply reducing the time of work and provides the bed of induction nets for cultivating chrysanthemum with its existing and new greenhouse. The review of sectional and biodynamic properties in 15 kinds of materials has revealed that the pipes of ${\phi}38.1{\times}1.7t$and ${\phi}38.1{\times}2.0t$ didn't exceed stress ratio but did 10mm drooping allowance. For this reason, the pipe of ${\phi}48.1{\times}1.5t$ net both stress ratio and drooping allowance. For the safety, the middle chamber should be designed into Truss type owing to bed load, wind load, and snow load when the bed of an induction net is installed in the middle chamber. When installing the middle chamber with a truss type, the greenhouse of chrysanthemum in Geochang area needs proper reinforcements because the stress in colullllls and wind proof walls exceeds stress allowance regardless of the installation of a bed.

• FLOWER RESEARCH JOURNAL
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• v.18 no.4
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• pp.278-283
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• 2010

This study was conducted to investigate the involvement of flower abnormality and S-adenosyl-L-homocysteine hydrolase (SAHH), which is one of the key enzyme in the maintenance of methylation. Plants exposed to high temperature (HT) and long day (LD) condition from 14-27days after short day (SD) produced abnormal flower, having numbers of ray florets. Numbers of ray florets were increased more than 2 folds by HT of $35/20^{\circ}C$ and LD of 14 hour comparing those of $25/20^{\circ}C$ (12 h/12 h). Full-length cDNA clone of S-adenosyl-L-homocysteine hydrolase (DgSAHH) in spray chrysanthemum 'Lerbin' contained an 1455 bp open reading frame coding for 485 amino acids. It showed highly conserved coding sequences among the different plant species with over 90% homology. DgSAHH expression was decreased in abnormal flower inducing treatment of HT and LD, while DgSAHH transcripts accumulated in flower bud of non abnormality inducing condition. This result implicate that DgSAHH expression is affected by temperature and photoperiod during flower development and suppression of DgSAHH is a one of the cause of abnormal flower under HT and LD condition.

• Korean Journal of Breeding Science
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• v.50 no.4
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• pp.351-363
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• 2018

In ornamental crops, the color and shape of flowers are one of the important traits. Generally, flower colors are determined by accumulating pigments such as carotenoids, flavonoids, and betalains. Among them, flavonoids are responsible for broad ranges of colors. Chrysanthemums are one of the most popular ornamental crops in the world, and there have been many efforts to change their flower color. In chrysanthemum flowers, cyanidin-based anthocyanin confers pink or red color, whereas terpenoid-based carotenoids are mainly responsible for yellow and green colors. However, blue colored chrysanthemums do not occur in nature. To date, there have been attempts to obtain blue or violet-colored chrysanthemum flowers through the introduction of a novel gene for accumulating delphinidin-based anthocyanins, while other studies have reported changing endogenous metabolites through the reconstruction of flavonoid biosynthesis. Since various transcription factors are involved in the regulation of flavonoid biosynthesis, it is important to understand not only the structural genes, but also the transcription factors required for the modification of flavonoid-based flower color. Therefore, in this paper, we describe the flavonoid biosynthetic pathway and its regulation, and review previous studies on the change in flower color through modification of flavonoid biosynthesis. This effort could be an important milestone in successfully achieving the modification of chrysanthemum flower color by means of plant biotechnology.

• Proceedings of the Korean Society for Agricultural Machinery Conference
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• 2002.07a
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• pp.298-303
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• 2002

화훼산업은 타 작목에 비해 소득이 높은 반면, 노동 및 자본 집약적 산업으로서 국민 소득이 증가하고 도시화와 산업화가 이루어질수록 자연에 대한 문화적 욕구가 증대되어 소득 작목으로서의 발전 가능성이 매우 높다. 특히 절화류는 수출유망 작목으로 1999년에는 6,700톤을 수출하여 전년대비 177.7%가 증가하였으며, 장미와 국화의 수출 증가율은 타 품목에 비해 높은 편으로 국화는 800.3%, 장미는 104.0%로 꾸준히 증가하고 있다. (중략)

• 한국약용작물학회:학술대회논문집
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• 2009.05a
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• pp.357-358
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• 2009

• 베이커리
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• no.11 s.316
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• pp.74-75
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• 1994

• Hospice
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• s.56
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• pp.10-16
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• 2013

• 식품문화 한맛한얼
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• v.2 no.3
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• pp.109-113
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• 2009

• 베이커리
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• no.9 s.446
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• pp.118-123
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• 2005

• Bulletin of Korea Environmental Preservation Association
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• v.7 no.19
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• pp.12-13
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• 1985