• FLOWER RESEARCH JOURNAL
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• v.17 no.1
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• pp.44-47
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• 2009

A new spray chrysanthemum(Dendranthema grandiflorum Ramat.) cultivar 'Yes Uri' was originated from a cross between 'SP03-033-02' and 'SP03-005-04'. This cultivar was tested on the characteristics from 2005 to 2007 for the evaluation and selection including shading and retarding culture. The natural flowering time of 'Yes Uri' is the late October, but year-round production is possible by shading, lighting and retarding culture. This cultivar was pompon in flower type with a color of bright yellow(RHS 7A), 13.8 flowers per plant and 91.5 cm of plant hight. The diameter of flower was 4.4 cm and the preference was high at 4.14 ranged up to 5.00. The days to flowering under the short day was 8 weeks and plant was very vigorous. It had resistance to white rust and showed 23.6 days of vase life in autumn season.

• Korean journal of applied entomology
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• v.47 no.4
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• pp.473-478
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• 2008

Root-lesion nematode (Pratylenchus vulnus) and pin nematode (Paratylenchus sp.) were detected with high population density at the spray chrysanthemum greenhouse in Gumi, Gyeongbuk. The average density of P. vulnus and Paratylenchus sp. was 667 and 716 nematodes per 100 g soil and P. vulnus density were distributed 87% to the depth of $0{\sim}30$ cm in greenhouse. When spray chrysanthemum cv Chopin, was transplanted in September 2004 in greenhouse, P. vulnus were 854 nematodes/100 g soil in planting and increased 14,985 nematodes/100 g soils and 1g root after 10 weeks in harvest. Shoot weight and shoot height of spray chrysanthemum decreased 24.8% and 8.0% compared with non-infested P. vulnus after 10 weeks in greenhouse.

• FLOWER RESEARCH JOURNAL
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• v.17 no.1
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• pp.48-51
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• 2009

A new spray chrysanthemum(Dendranthema grandiflorum Ramat.) cultivar 'Yes Arang' was originated from a cross between 'NOA' and 'SP03-05-04'. This cultivar was tested on the characteristics from 2005 to 2007 for the evaluation and selection including shading and retarding culture. The natural flowering time of 'Yes Arang' is late October. This cultivar was yellow in color, single in flower type for the spray type cut-flower. The diameters of flower and flower center were 4.3 cm and 1.2 cm, respectively. Year round production was possible by shading or lighting treatment. Its number of flowers was 15.1 per plant. In natural and forcing cultivation, the days to flowering was 7 weeks after short day treatment. It has resistance to white rust and the vase life was about 17.2 days in autumn season.

• FLOWER RESEARCH JOURNAL
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• v.16 no.4
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• pp.317-320
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• 2008

A new spray chrysanthemum(Dendranthema grandiflorum Ramat.) cultivar 'Yes Line' was originated from a cross between 'T22319' and 'SP02-037-13'. This cultivar was tested on the characteristics from 2004 to 2007 for the evaluation and selection including shading and retarding culture. The natural flowering time of 'Yes Line' is late October, but year-round production is possible by shading, lighting and retarding culture. This cultivar was single in flower type, with a color of red-purple(RHS 74C), with the flowers of 21.4 per stem. 'Yes Line' showed the vase life of 16.5 days in autumn season. The diameters of flower and flower center were 4.3 cm, 1.2 cm respectively. The days to flower under the short day treatment was 7.5 weeks and preference of consumers were high at 3.86 ranged up to 5.00. It has resistance to white rust and was possible to cultivate all-year-round.

• Korean Journal of Organic Agriculture
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• v.18 no.4
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• pp.573-586
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• 2010

This study was carried out to evaluate characteristics of Chrysanthemum sp. and to bioassay Tetranychus urticae, Nilaparvata lugens, and Aphis gossypii by different extracts part and method. Flower type of Chrysanthemum sp. line was anemone except 0706 line which was pompon. The flowering date was from April to June but 0721 line kept up November. They could overwinter except 0706 line. The Ethanol extracts of 0718 line of flower was high mortality as 63.8% on Tetranychus urticae. Ethanol mixed emulsifier extracts were the highest mortality as 69.4% at 5 days after. Mortality in water extract was lower than in ethanol and ethanol mixed emulsifier extracts. Ethanol mixed emulsifier extracts were higher mortality as 69.4% at 5 days after in 0718 line on Nilaparvata lugens. Mortality in water extract was lower than in ethanol and ethanol mixed emulsifier extracts. On Aphis gossypii, Chrysanthemum flower extracts could decrease the density of aphids in early days but the density of that was increase as time goes by because aphids produce offspring.

• Journal of the Korean Society of Food Science and Nutrition
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• v.37 no.6
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• pp.805-809
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• 2008

The objective of this study was to compare the aroma characteristics and antioxidant activity of Chrysanthemum indicum Linne (CIL), C. morifolium Ramat (CMR) and C. zawadskii var Latilobum (CZL). The volatile compounds were extracted by simultaneous steam distillation extraction and identified with gas chromatography/mass spectrometer. The major volatile compounds of Chrysanthemum sp. were camphene, 1,8-cineole, benzene, pinocarvone, bicyclo-2,2,1-heptan-2-ol, ${\beta}$-caryophyllene, 3-cyclohexen-1-ol, ${\gamma}$-curcumene, zingiberene and ${\beta}$-bisabolene. The DPPH radical scavenging activity (EDA, %) of volatile compounds in CIL, CMR and CZL were 30.57, 46.36, and 51.72%/g sample, respectively. The ascorbic acid equivalent antioxidant capacity (AEAC) of volatile compounds were 34.99, 35.31, and 38.48 mg AEAC/g, respectively.

• FLOWER RESEARCH JOURNAL
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• v.18 no.3
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• pp.211-215
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• 2010

A new spray chrysanthemum(Dendranthema grandiflorum) cultivar 'Magic' was developed from a cross combination between 'Artist Pink' and 'SP0347' by selection of seedlings and lines at the Flower Research Institute, Gyeongnam Agricultural Research and Extension Services(ARES) from 2003 to 2007. Its characteristics were investigated three times from 2005 to 2007 under condition of forcing culture in spring and retarding culture in autumn. The natural flowering time of 'Magic' was October 26th, and year-round production was possible by day length treatment. Its capitulum was 6.1 cm in diameter, and had 31.9 ray florets and 11.7 head per stem in autumn. Its ray floret was white-purple with yellow green central zone. Days to flower of 'Magic' was about 43 days in spring, and 'Magic' showed the vase life of 20.6 days in autumn. This cultivar was registered for a commercialization in 2007.

• Journal of Species Research
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• v.4 no.2
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• pp.152-158
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• 2015

Dendranthema boreale and D. indicum are easily distinguished from other Korean Dendranthema spp. by having yellow flowers. We have found a putative new taxon of Dendranthema having white flowers, except for sharing most characters with Dendranthema boreale. The chloroplast (cp) genome of the putative new taxon of Dendranthema, Dendranthema sp. K247003, registered in National Agro-Biodiversity Center (ABC), was completely characterized as a genetic barcode. The cp-genome of Dendranthema sp. K247003 was 151,175-bp in size: LSC was 82,886-bp, IR 24,971-bp, SSC 18,347-bp. The cp-genome of Dendranthema sp. K247003 contains 113 genes and 21 introns consisted of 79 protein coding genes, 4 RNA genes, and 30 tRNA genes, with 20 group II introns and one group I intron. Some of the genes and there introns were duplicated in IR. The cp-DNA of Dendranthema sp. K247003 is distinguished from that of D. boreale IT121002 by 67 SNPs in genic regions of 24 protein coding genes and by a 9-bp INDEL in ycf1. Further cp-DNA study will give us better information on genetic markers of Dendranthema species.

• The Korean Journal of Ecology
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• v.15 no.3
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• pp.209-220
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• 1992

We investigated major plant communities and seed dispersal patterns in areas a(alt. 2,263 ~2,350m),b(alt. 2,350~2,420m), c(alt. 2,420m) with levels of a crater on mt. paektu. Thirty two species distributed around chunji consisted of 24 perennial herbs, 1 biennial herb and 7 alpine dwarf shurbs. Their fruit types were quite diverse; capsule(11), achene(10), grain(4), legume(2), follicle(2), schizocarp(2) and drupe(1). in area a, adjancent to the chunji(lake) water surface, gramineae sp., cyperaceae sp., chrysanthemum zawadskii and bistorta ochotensis were occured as members of the major plant communities. Species of gramineae and cyperaceae seem to have become dominant because their seeds float well. Astragalus membranaceus is legume and endures the winter cold and summer drought. in area c, alpine dwarf shrubs (e. g.rhododendron redowskianum, rhododendron aureum, empetrum nigrum) were dominant. In area c, compared to a and b, the weather is drier because of strong wind and lower water holding capacity of the soil. Therefore the pattern of plants distributing around chunji is different from that in western slope on mt.paektu. environmental factor such as wind, temperature and water may contribute to the pattern.

• FLOWER RESEARCH JOURNAL
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• v.18 no.4
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• pp.295-298
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• 2010

A new spray chrysanthemum(Dendranthema grandiflorum) cultivar, 'Biz' was developed from a cross between 'S03-117' and 'Angaesoguk' by selection of seedlings and lines at the Flower Research Institute, Gyeongnam Agricultural Research and Extension Services(ARES) from 2003 to 2008. Its characteristics were investigated three times from 2006 to 2008 under condition of forcing culture in spring and retarding culture in autumn. The natural flowering time of 'Biz' was October 26th, and year-round production was possible by day length treatment. This cultivar was white in color, single in flower type for the spray type cut flower. Its capitulum was 3.0 cm in diameter, and had 15.6 head per stem in autumn. Its ray floret was green central zone. The days to flowering under the short day treatment is about 42 days in spring season, and 'Biz' showed the vase life of 24.1 days in autumn. This cultivar was registered for a commercialization in 2008.