• Journal of the Korean Institute of Landscape Architecture
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• v.37 no.5
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• pp.90-97
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• 2009

Sedum takesimenses among the Korean Native Genus Sedum was selected as evergreen ground covers during winter in the central districts of Korea. In order to obtain basic information for production as a pot flower with good quality, the effects of pinching frequencies on growth and flowering of S. takesimense were investigated. S. takesimense plant height became much shorter and numbers of lateral shoots were increased with increased pinching. Shoots of S. takesimense treated with 30% pinching during 2004 and 2005 showed greater length and less number of lateral shoots than those with 60% pinching. Leaves of S. takesimense treated with 70% shading showed a dark green color and had a longer shoot length and a lower number of shoots than cultivation under full sunlight. Therefore, Korean native S. takesimense will be utilized as ground cover treated with 70% shading or under a tree. Therefore, S. takesimense will be promising as ground cover materials in the central districts of Korea.

• Journal of the Korean Institute of Landscape Architecture
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• v.39 no.6
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• pp.110-117
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• 2011

In order to study the growth models between the growth of Sedum takevimense and growth rate in soil with three types of mix ratios, this experiment was carried out on April 3rd, 2011. A nonlinearity regression analysis was performed using the Logistic and Gompertz models by SPSS. According to the study of growth models of Sedum takevimense, the process of growth and management methods after over-wintering were explicitly determined. According to the measured values, the growth in the soil of $P_1P_2V_1$ and $P_2P_1V_1$ was better than that of $P_1$. Particularly, the average length of Sedum takevimense in the soil of $P_1P_2V_1$ was about twice as great as that in the $P_1$. The fitness test of the two growth models was: The predicted value and measured value were separately compared and analysed, the average fitting precision $R^2$ of the Logistic models was 0.995, but the average $R^2$ of the Gompertz models was below 0.978, which showed that the Logistic models were better than the Gompertz models. The growth models also showed that the growth time of Sedum takevimense was divided into three: rapid, most rapid and slow. When managed in the rapid and the most rapid time, it will grow better.

• Journal of the Korean Institute of Landscape Architecture
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• v.41 no.6
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• pp.140-146
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• 2013

This experiment was conducted in order to study the physiological characteristics of Sedum takevimense in different moisture conditions. The photosynthetic rate, water use efficiency and the respiratory rate were determined by using a photable photosynthesis system. According to the results, the best illumination range and moisture range were explicitly selected. The highest photosynthetic rate was at $600{\mu}mol{\cdot}m^{-2}{\cdot}s^{-1}$, and after this value, the trend showed a reduction. When the moisture was 11.31%, the photosynthetic capacity and water use efficiency reached maximum value, but the respiratory rate reached maximum value at 7.91%. According to the measured values, the best illumination range was $600{\sim}1,200{\mu}mol{\cdot}m^{-2}{\cdot}s^{-1}$ and the best moisture range was 7.09~11.31%.

• Korean Journal of Plant Taxonomy
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• v.40 no.3
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• pp.157-162
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• 2010

Sequences of the trnL/F intergenic spacer of chloroplast DNA were used to investigate the intraspecific evoution and phylogeography of Sedum takesimense (Crassulaceae). The trnL/F intergeneric spacer sequences from 32 individuals of S. takesimense were either 291 bp (17 samples "without indel" in the following) or 297 bp (15samples "with indel 1") in length due to an indel of 6 bp. Two main cpDNA haplotypes were detected within S. takesimense. The haplotype with indel was found on Ulleung Island and without indel on Ulleung Island and Dok Island. This confirmed the existence of two cpDNA lineages with different geographical distributions. The cpDNA sequence analysis also suggested a putative long-distance dispersal event between Ulleung Island and Dok Island.

• Environmental engineer
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• s.323
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• pp.71-71
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• 2013

• KSCE Journal of Civil and Environmental Engineering Research
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• v.30 no.5B
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• pp.519-524
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• 2010

This study was carried out to select suitable plants for beach revegetation as a preliminary study for quantifying the effect of decreasing sand movement. After planting some herbal plants in field, monitoring of temporal change of vegetation coverage which was index of the growth rate was conducted. Through literature reviews, 24 candidate plants for beach revegetation were selected, then seven species of them, Peucedanum japonicum Thunb., Dianthus japonicus Thunb. ex Murray, Sedum oryzifolium Makino, Sedum takesimense Nakai, Sedum spectabile Boreau, Farfugium japonicum (L.) Kitam., Aster sphathulifolius Maxim. were picked through salinity tolerance experiments in laboratory. Seven species selected by salinity tolerance experiments and two additional herbal plants, Prunella vulgaris var. lilacina Nakai and Linaria vulgaris Mill., not the candidates, were nine final species which were planted in the beach around Osan port, Uljin, Korea. The changes of vegetation coverage of each species were investigated from photos periodically taken for about a year using image processing methods. As a result of the monitoring, Sedum takesimensei, Dianthus japonicus and Aster sphathulifolius were observed with high coverages during the whole monitoring while Prunella vulgaris var. lilacina and Linaria vulgaris were observed with low coverage during the same period. Consequently, Sedum takesimensei, Dianthus japonicus and Aster sphathulifolius were concluded as the most suitable plants for beach revegetation. Furthur study to quantify the effects of decreasing sand movement by the selected species is needed.

• Proceedings of the Korean Institute of Landscape Architecture Conference
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• 2011.03a
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• pp.149-152
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• 2011

• Journal of the Korean Society of Environmental Restoration Technology
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• v.4 no.1
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• pp.52-56
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• 2001

Experiment was performed to investigate the effect of light intensity on growth and flowering status of Korean native Dianthus superbus var. longicalycinus, Sedum middendorifianum, Hemerocallis aurantiaca, Iris ensata var. spontanea and Aquilegia buergeriana var. oxysepola for effective landscaping. Number of floret and flower stalk per a plant were markedly increased under full sun(about 100,000lux), and decreased with decreasing light intensity in all tested plants. This result indicate that it will be cultivated in the open for promote landscaping values. However, leaf area and plant height were more increased under half sun(22,000lux) than open(100,000lux) or shade(7,700lux) in all plants except Sedum middendorifianum. Especially, Hemerocallis aurantiaca had same number of shoot and leaf size, even if planted under shade condition to show a wide adaptation to various light intensities.

• Horticultural Science & Technology
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• v.17 no.4
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• pp.489-493
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• 1999

This study was conducted to investigate the potentiality of various Korean Sedum species as ornamental plants based on morphological characteristics and to analyze the genetic relationship among the Sedum species. S. kamtschaticum and S. takesimense possessing splendour flowercluster with yellow color could be suggested for garden plant, S. routundifolium having pink flower-clusters with round leaf shape for pot flower or garden plant and S. sarmentosum, S. polystichoides and S. oryzifolium with creeping stem and low plant height for ground cover plant or floral carpet. Eighteen oligonucleotide random primers were used to amplify genomic DNA of Sedum species using polymerase chain reaction (PCR). Ninety five polymorphic bands among 125 different DNA fragments in the range of 224 to 3,675 base pairs were obtained from RAPD analysis. Similarity matrix of RAPD profiles was generated by coefficient value of variation, and the data were subjected to be cluster analysis. Fifteen lines of Sedum species analyzed were classified into 3 groups with the similarity coefficient value of 0.418, and 12 groups with the value of 0.328. RAPD results showed similar trends as the morphological characteristics of the plants.

• Proceedings of the Korean Environmental Sciences Society Conference
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• 2019.10a
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• pp.163-163
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• 2019