• Title/Summary/Keyword: azalea

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Analysis of Confusion of Azalea Cultivars and Its Actual State of Use in Landscaping Businesses (조경업체에서의 철쭉재배품종의 혼선 및 이용실태 분석)

  • Choi, Jae-Jin;Park, Seok-Gon
    • Journal of the Korean Institute of Landscape Architecture
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    • v.42 no.2
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    • pp.86-90
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    • 2014
  • This study was conducted to examine the state of confusion about those azalea cultivars(hereinafter, Azalea Cultivars) that are used among practicians in landscaping businesses(designers, constructors, and producers). Which Azalea Cultivars would be delivered when they were ordered to producers using the names of Azalea Cultivars notified by the Public Procurement Service. In addition, the situations of azalea cultivar planting designs in the planting design drawings of three apartments completed recently and whether the Azalea Cultivars on the design drawings were the same as those Azalea Cultivars that were actually planted were examined. When Azalea Cultivars were ordered using the notified names, three Azalea Cultivars; Beni, Three, and Daewang were delivered for the name Yeongsanhong and two Azalea Cultivars; Zasanhong and Hancheol were delivered for the name Zasanhong. Yeongsanhong was perceived as a common name of Beni, Three, and Daewang by producers. Therefore, this caused confusion between producers and purchasers. In the case of Zasanhong, as the traits of Zasanhong are similar to those of the cultivar Hancheol, the producers or purchasers might have been unable to clearly distinguish between the cultivars and thus two cultivars might have been delivered without being distinguished from each other. The names of Azalea Cultivars used in planting design drawings were the names notified by the notifying agencies or comprehensive and unclear names such as azalea and Yeongsanhong. Completely different Azalea Cultivars from those written in planting design drawings were planted in actual construction sites in many cases. These situations should have occurred because designers did not write accurate cultivar names in planting design drawings and constructors could not accurately perceive the classification characteristics of individual Azalea Cultivars but planted those Azalea Cultivars with similar flowers colors or those that could be easily bought to fit the conditions of construction sites.

The Degradation of hydrocarbons in Petal of Azalea by Gokja (진달래꽃 탄화수소류의 곡자에 의한 분해)

  • 홍태희
    • The Korean Journal of Food And Nutrition
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    • v.12 no.4
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    • pp.415-420
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    • 1999
  • Petal of Azalea(Rhododendron mucronulatum Turcz) was incubated with Gokja at 3$0^{\circ}C$ for seven days and the essential oil components of petal of Azalea before and after incubated were analyzed using a GC/MSD. Ten or more essential oil components including n-heneicosane n-tricosane n-tetreacosane n-pentacosane n-heptacosane n-nonacosane and n-hentriacontane were identified from the petal of Azal-ea before incubated while oxygen-containng compounds including (E)-heptenal 2-ethoxy-1 -hexanol n-hexadecanoic acid methyl ester 9, 12-octadecadienoic acid methyl ester 9,12,15-octadecatrienoic acid methyl ester, n-octadecanoic acid methyl ester n-eicosanoic acid methyl ester and 9-docosaenoic acid methyl ester as well as n-alkanes such as n-tricosane that n-pentacosane were identified from the petal of Azalea after incubated. These results suggest that n-alkanes in petal of Azalea might be degraded and some oxygen-containing compounds such as aldehyde, esters and /or acids might be produced when pet-al of Azalea is incubated with Gokja.

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A study of the habitat preferences of the azalea, Rhododendron mucronulatum T. (진달래나무의 입지선택에 관한 연구)

  • 남영우
    • Journal of Plant Biology
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    • v.13 no.3
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    • pp.25-31
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    • 1970
  • The ratio of occurrence of azalea (Rhododendron mucromultum T.) was determined on the north and south facing slopes on a mountain in Koyang county, Kyungi Province. Data was actually recorded at the eight aspects facing N, NE, E, SE, S, SW, W and NW on the mountain. In each of the eight aspects, six 10m transect tapes were placed in parallel directly down the slope, each 1m apart, and fifty 1$m^2$ quadrats were constructed between them. Frequency of the azalea in each of these quadrats was determined by counting the central stumps of the bushes Soil samples were also taken from pits dug in each plot to use for determination of the following: Soil pH, soil moisture loss on ignition, total nitrogen, and available phosphorus. The occurrence rate of azalea on the northern slop e was found to be for higher on the northern slope than on the southern slope. The abundance of azalea on the northern slope was found to be partially correlated with soil moisture(r=0.93; 0.01>p) and the amount of humus in the soil (r=0.04;0.01>p). The content of total nitrogen, soil PH, and available phosphorus in the soil, however, were found to have no evident relationship with the abundance of azalea. The conditions for growth in the species of azalea Rhododendron mucronulatum T'. were generally found to be more favorable on the northern slope.

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Trend Analysis of the Prices and Numbers of Azalea Cultivars for Landscaping in Korea (국내 조경용 철쭉류의 가격 및 종수 추이분석)

  • Choi, Jae-Jin;Park, Seok-Gon
    • Journal of the Korean Institute of Landscape Architecture
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    • v.42 no.4
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    • pp.30-36
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    • 2014
  • This study was conducted to determine the causes of unreasonable prices and small numbers of azalea cultivars by analyzing the price trends and the number of azalea cultivars announced over the last 25 years based on data from the Public Procurement Service(PPS), Korea Price Research Center and the Landscaping Tree Association(LTA)(hereinafter, officially announcing agencies and organizations) which are major references used when landscape planting is decided. The prices of azalea cultivars announced by the official announcing agencies and organizations have moved in similar patterns over the past 25 years because the prices of azalea cultivars announced by the LTA were referred to by other official announcing agencies and organizations when they officially announced the prices of azalea cultivars. The PPS set lower officially fixed prices of azalea cultivars compared to other official announcing agencies and organizations, and the reason for this is considered to be the intention of the PPS to suppress landscape tree price increases because of the government's policies to suppress price increases. The prices of azalea cultivars seem to change rapidly due to the imbalance between the demand and supply of azalea cultivars rather than the effects of consumer price fluctuation rates because the production periods of azalea cultivars are shorter when compared to other landscape trees. The prices of azalea cultivars from the official announcing agencies and organizations have been set higher than the prices in actual transactions. The reason for this is considered to be the intention of the official announcing agencies and organizations to allow landscaping companies to cover defect costs resulting from the practice of subcontracting planting work and secure profits of subcontractors for planting work. The official announcing agencies and organizations have simply announced prices of 5~8 main azalea cultivars that have been used in the past. The names of azalea cultivars being cultivated and criteria for classification have not been clear; thus, landscape designers have not written clear names of azalea cultivars to be cultivated on planting drawings as practice and landscapers planted those azalea cultivars which could be easily obtained. Therefore, it is assumed that there has been no demand for new azalea cultivars. Thus, the vicious circle in which the prices of only those azalea cultivars that were produced in the past have been announced is repeated.

Toxic Effect of Azalea Extract on Cardiovascular System (진달래 꽃잎의 추출물이 심혈관계에 미치는 영향)

  • Chun, Jun-Ha;Chung, Sung-Bok;Kang, Seung-Ho;Kim, Yeong-Jo;Shim, Bong-Sub;Lee, Hyun-Woo;Shin, Dong-Gu;Park, Jong-Min
    • Journal of Yeungnam Medical Science
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    • v.8 no.2
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    • pp.52-62
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    • 1991
  • The toxic effect of azalea extract, expecially on cardiovascular system, is relatively unclear. The purpose of this study is to study the possible underlying mechanism and effect of toxic ingredient of azalea on cardiovascular system. The 71 healthy rabbits were divided into 10 groups : In group as preliminary study ; 4cc of normal saline was administered intravenously(N) ; 0.7gm/kg and 1.0gm/kg of azalea extract was administered respectively in the same route, volume(A1, A2) ; atropine was administered intravenously(A) ; after pretreatment with atropine(0.04mg/kg) to block parasympathetic system, azalea extract was injected like the above groups(AA1, AA2) ; normal saline, 0.7gm/kg and 1.0gm/kg of azalea extract were administered respectively with 0.2cc(1 : 1000) epinephrine(E0,E1,E2). We measured the following indices at I minute interval during first 10 minutes and then 10 minute interval during next 30 minutes : RR interval, QTc interval, maximal systolic and diastolic pressure drop with occuring time and presence of significant arrhythmia. The results were as follows : 1. The changes of RR interval, QTc interval were significantly increased in groups by Azalea extract. The blood pressure change was significantly decreased in groups by Azalea extract. There were no significant differences according to dosage of Azalea extract. 2. The changes of RR interval, blood pressure were significant differences between administration of atropine and Azalea extract after pretreatment with atropine, but not in the change of QTc interval. 3. There were no significant differences in the change of RR interval, ATc interval, blood pressure drop according to pretreatment with atropine. 4. The interaction between epineprine and Azalea extract was not noted by the effect of epineprine itself. 5. The ST change by 0.7gm/kg, 1.0gm/kg of Azalea extract was revealed in 1 case(14.0%), 7 case(100%), respectively. 6. Most of all cases with arrhthymia, ventricular tachycardia, ventricular fibrillation, were noted in the group by epineprine, except one case by Azalea extract(1.0gm/kg). It was idioventricular rhythm. In conclusion, azalea extract has negative inotropic and chronotropic effect with arrhythmogenic potential possibly through direct myocardial ischemia or injury but we cann't be absolutely exclusive of actions of autonmic nervous system, especially parasympathetic nervous system.

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Effects of Shading, Chilling and Gibberellin Treatments on the Flowering of Azalea (Rhododendron spp.) (차광, 저온 및 지베렐린 처리가 Azalea의 개화에 미치는 영향)

  • Chung, Hae-Joon;Yoo, Bong-Sik
    • The Journal of Natural Sciences
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    • v.10 no.1
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    • pp.63-71
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    • 1998
  • This research was conducted to control flowering of azalea (Rhododendron spp.) by shading, chilling and gibberellin treatments. Higher shading among treatments resulted in extended duration of flowering (DF) and increased number of flowers (NF) in all varieties tested. Number of days to flower (NDF) was increased in 'Ripple' by shading treatment, but this was not affected in other was vice verse in 'Reinhold Ambrosia' resulting in decreased NDF. Chilling treatment followed by high shading increased NDF and shortened DF in 'Inga' and 'Ripple', but that extended NDF and DF and increased NF in 'Reinhold Ambrosia'. In flowering response to $GA_3$ resulted in decreased NDF and increased NF. These results indicated that treatments of shading, chilling and gibberellin to azalea extended DF and increased NF, but NDF appeared different according to varieties.

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Trends in Unikernel and Its Application to Manycore Systems (유니커널의 동향과 매니코어 시스템에 적용)

  • Cha, S.J.;Jeon, S.H.;Ramneek, Ramneek;Kim, J.M.;Jeong, Y.J.;Jung, S.I.
    • Electronics and Telecommunications Trends
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    • v.33 no.6
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    • pp.129-138
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    • 2018
  • As recent applications are requiring more CPUs for their performance, manycore systems have evolved. Since existing operating systems do not provide performance scalability in manycore systems, Azalea, a multi-kernel based system, has been developed for supporting performance scalability. Unikernel is a new operating system technology starting with the concept of a library OS. Applying unikernel to Azalea enables an improvement in performance. In this paper, we first analyze the current technology trends of unikernel, and then discuss the applications and effects of unikernel to Azalea. Azalea-unikernel was built in a single image consisting of libOS, runtime libraries, and an application, and executed with the desired number of cores and memory size in bare-metal. In particular, it supports source and binary compatibility such that existing linux binaries can be rebuilt and executed in Azalea-unikernel, and already built binaries can be run immediately without modification with a better performance. It not only achieves a performance enhancement, it is also a more secure OS for manycore systems.

Nutritional Biochemical Study on the Pollen Load. -Effect of Azalea(Rhododendron mucronulatum)Pollen on the Hepatic Microsmal Aniline Hydroxylase Activity- (화분의 영양생화학적 연구 -진달래 화분(Rhododendron mucronulatum)이 간 Aniline Hydroxylase 활성에 미치는 영향-)

  • Kwon, Chong-Suk;Cho, Soo-Yeul;Park, Jong-Min;Huh, Keun
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.18 no.1
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    • pp.93-100
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    • 1989
  • The effect of each azalea(Rhodoendron mucronulatum) pollen extract on phase I enzyme(aniline hydroxylase)was studied in this experiment. Serum aminotransferases were not changed in mice injected each azalea pollen extract, respectively compared to control group. The hepatic micros mal aniline hydroxylase activities in the presence of each azalea pollen extract were not affected in vitro. After treatment with azalea pollen water extract, hepatic microsomal aniline hydroxylase activity was increased with dose-dependent manner as compared to control group. The increment of hepatic microsmal aniline hydroxylase activity was more powerful by the treatment of water extract. As mice received aniline after pollen butanol and water extract-pretreatment once a day for 5 days, the blood and liver levels of aniline were decreased significantly.

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Morphological Characteristics and Classification Criteria for Azalea Cultivars for Landscaping in Korea (조경용 철쭉재배품종의 형태적 특성 및 분류기준)

  • Choi, Jae-Jin;Park, Seok-Gon
    • Journal of the Korean Institute of Landscape Architecture
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    • v.42 no.2
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    • pp.77-85
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    • 2014
  • This study was conducted to examine the morphological characteristics of those Azalea Cultivars(hereinafter, Azalea Cultivars) that are mainly used for landscaping in Korea in order to prepare classification criteria. As testing materials, major Azalea Cultivars cultivated in large quantities by its producing companies were collected. Thereafter, the qualitative and quantitative characteristics of the traits of Azalea Cultivars were investigated in the way of characteristic investigation for new cultivars of azalea used by the Korea Seed and Variety Service in order to classify them and prepare the classification criteria. Since cultivar names have not been established for Azalea Cultivars for landscaping thus far, the data were compiled using the names used by cultivating companies. According to the results, Azalea Cultivars cultivated in Suncheon, Jeonnam mainly for landscaping were 10 in number; Beni, Daewang, Three, Zasanhong, Hancheol, Sancheoljuk, Gyeobsancheoljuk, Baekcheoljuk, Akado, and Seok-am. Among them, the cultivars Beni, Daewang, and Three could not be easily distinguished from each other because they are commonly called Yeongsanhong by cultivating companies and the shapes of their leaves and flowers are similar to each other. In particular, the flower color of Beni was 'bright red', that of Daewang was 'vivid purple', and that of Three was 'bright purple'. In addition, Zasanhong and Hancheol were similar to each other in shape the degree of expression of spots on the flowers and the gloss on the front side of the leaves of Hancheol were higher and stronger compared to that of Zasanhong. Sancheoljuk flowered in early April, earlier compared to other Azalea Cultivars. Gyeobsancheoljuk is an elementary species of Sancheoljuk and it had double flowers although all other traits were similar to those of Sancheoljuk. Although Baekcheoljuk was easily distinguished because it had white flowers, its leaves were similar to those of Akado the reason why these two cultivars could not be easily distinguished from each other. The cultivar Akado flowered early May later compared to other Azalea Cultivars and its flowers were relatively large in diameter as with Baekcheoljuk and Sancheoljuk. Finally, the cultivar Seok-am was easily distinguished because it had smaller leaves compared to other cultivars and it flowered late as with the cultivar Akado.

Seasonal Occurrence of Azalea Lace Bug Stephanitis Pyrioides (Hemiptera: Tingidae) on Chonbuk (전북지역에 발생하는 진달래방패벌레(노린재목:방패벌레과)의 발생소장)

  • 황창연;최선우
    • Korean journal of applied entomology
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    • v.37 no.1
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    • pp.49-52
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    • 1998
  • This study was carried to investigate the seasonal occurrence of Step17~initisp yr-ioide.~ Scott (Hemiptera : Tingidae) in a azalea field at Wan.1~. Chonbuk, Korea in 1994. S, pyr-ioic1c.c had LIP to four generations in Chonbuk. The peaks of adult population for each generation were late May, mid-July. late-August, iuid mid-October. respectively. S. pyrioidrs overwintered as egg stage within the midribs of the host leaves.

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