• Korean Journal of Breeding Science
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• v.40 no.3
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• pp.299-302
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• 2008

A new rose variety, was selected from the progenies of a cross between "Cosai" and "Tokimeky" in 2006 after evaluation trials for three years (2004-2006). "Waltz" was developed because of many petals and powdery mildew resistance. A standard type with large sized flower, "Waltz" shows in 11.0 cm flower diameter. "Waltz" produces 130 stems?m-2 in a year. It has red-white color flower and 49.6 petals per flower. The stem length of cut flower was long with 69.3 cm. Vase life of the variety could be as long as 9.6 days.

• Korean Journal of Breeding Science
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• v.40 no.1
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• pp.72-75
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• 2008

A new rose cultivar, 'Green Beauty' was selected from the progenies of a cross between 'Qvarna' and 'Sky Line' by rose breeding team of the Gyeonggi-Do Agricultural Research and Extension Services in 1999. It was finally selected in 2005 after evaluation trials for five years (2001-2005). 'Green Beauty' was developed for a standard-type cut flower. 'Green Beauty' has good qualified flower of which color is fair orange-yellow and green. 'Green Beauty' produces $178stems/m^2$ in a year, and has 62 petals per flower. Vase life of the cultivar could be as long as 12 days. 'Green Beauty' has some good agricultural and marketing traits. Futhermore marketing-quality was good in some aspects. The cultivar was applied for a variety protection in 2006, and was released to commercial growers in 2007.

• Korean Journal of Breeding Science
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• v.40 no.1
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• pp.68-71
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• 2008

A new rose cultivar, was selected from the progenies of a cross between 'Red Sandra' and 'Neon' by rose breeding team of the Gyeonggi-Do Agricultural Research and Extension Services in 2000. It was finally selected in 2004 after evaluation trials for three years (2002-2004). 'Red Flash' was developed for a standard-type cut flower. 'Red Flash' produces $123stems/m^2$ in a year, and has 36 petals per flower. The length of cut flower was long with 65.2 cm. Vase life of the cultivar could be as long as 7.6 days. The cultivar was applied for a variety protection in 2006, and was released to commercial growers in 2007.

• Horticultural Science & Technology
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• v.34 no.3
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• pp.472-487
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• 2016

This study aimed to determine the effects of floral fragrances on human brain waves and moods. A total of 44 subjects participated in this experiment. Group 1 consisted of 11 male and 14 female college students with a mean age of 24.5 years (${\pm}2.23$) and Group 2 consisted of 10 males and 9 females with a mean age of 54.3 years (${\pm}2.98$). Subjects were exposed to floral fragrances of Rosa hybrida, 'Hera' (hereafter referred to as "rose"), Cymbidium faberi (hereafter referred to as "orchid"), or odorless control flowers (hereafter referred to as "control"). Experiments took place in three rooms (rose, orchid, and control). Electroencephalographs (EEGs) were recorded during exposure to the odors and the data were processed using quantitative electroencephalographic (QEEG) techniques. The changing EEG patterns were analyzed by brain mapping and compressed spectral arrays, and the subjects' preferences (hedonic evaluations) were quantified with an A1 index. Increased activation of absolute alpha waves was verified on six of the eight EEG channels, with the right frontal and left occipital lobes exhibiting no changes and the left parietal region showing the greatest activation. According to the QEEG measurements in the electrode sites over the frontal, temporal, parietal, and occipital lobes, the strongest absolute alpha waves were induced in the parietal lobes, followed by the temporal lobes, with the other lobes showing no significant changes. On brain maps, the orchid fragrance induced greater absolute alpha and absolute mid-beta activities compared with the rose and control fragrances, and the rose fragrance induced high absolute mid-beta activation. To identify emotional responses to floral fragrances, the subjects were requested to fill in a questionnaire and the resulting odor-related emotional descriptors were analyzed using semantic differential and factor analysis. Principal component analysis identified "elegant" as the first principal component describing the floral fragrance, followed by "refreshing" and "aromatic." The subjects gave orchid higher scores for "elegant" and "refreshing," while finding rose more "aromatic." Differences in hedonic evaluation revealed by the A1 index appeared in the 65-115 sec range of scent exposure time. The subjects with ages of around 50 years showed olfactory preferences throughout the entire experimental time of 160 sec, most markedly in the later time segment (115-165 sec), showing an increasing preference with increasing exposure time. We conclude that rose fragrance can improve concentration by creating an aromatic environment conducive to a concentrated and calm state of mind, and orchid fragrance can make people feel pampered and relaxed by creating an elegant and refreshing environment.

• Horticultural Science & Technology
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• v.28 no.4
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• pp.618-626
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• 2010

Matroclinal inheritance of morphological characters in interspecific crosses of Rosa spp. can be influenced by cytoplasmic inheritance, apomixis, and asynaptic heterogamy. In asynaptic heterogamy, which is often observed from interspecific crosses of Rosa sect. $Caninae$, the polyploidy of the seed parent (especially for 5x=35) is recovered in the progeny through the pollens that include only a set of bivalents (x=7) and egg cells that contain a set of bivalents (x=7) and other univalents (3x=21). In this study, we investigated the causes of matroclinal offsprings observed from reciprocal crosses of tetraploid cut rose cultivars ($Rosa$ $hybrida$ L.) by analyzing EST-SSR marker distribution in the progeny populations. From EST-SSR marker analysis of eight offsprings per six reciprocal crosses among six cultivars, cases of cytoplasmic inheritance were not observed. Apomixis was also very rare as compared to the reports on interspecific crosses of sect. $Caninae$; only one apomitic plant was identified from the cross 'Redtem' ${\times}$ 'Red Sandra'. Although a clear-cut pattern of asynaptic heterogamy was not found, cultivar-specific marker transmission skewed to seed parent in four cultivars implied that genetic inheritance can be highly influenced by the seed parent depending on crosses among cut rose cultivars; especially, 10 out of 11 alleles specific to 'Yellow King' distributed in progenies at higher ratios when the cultivars were crossed as the seed parent.

• Horticultural Science & Technology
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• v.32 no.2
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• pp.269-275
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• 2014

A standard rose cultivar, 'Love Letter' was selected for cut flower from the progenies of a cross between 'Red Giant' and 'Ensemble' by the rose breeding team of the Gyeonggi-do Agricultural Research & Extension Services (GARES) in 2011. A standard rose cultivar 'Red Giant' with red colored (RHS Red Group 45C) petals and 1.8 prickles per stems of 10 cm was used as a mother plant. A standard rose cultivar 'Ensemble' with white and red purple colored (RHS White Group 155C + RHS Red Group N57B) petals and 2.4 prickles per stems of 10 cm was used as a pollen parent. 'Love Letter' was crossed in 2007 and seedlings were produced. After tests of specific characters from 2008 to 2011, this cultivar was finally selected and named. As a standard type with large sized flower, it has red colored (RHS Red Group 46A) petals with 9.3 cm flower diameter and 32.4 petals per flower. Vase life of this cultivar could be as long as 12 days. It takes 43 days from pruning to blooming and cut flower productivity was 152 stems/$m^2$ in a year. The stems of cut flower have no thorn and the length is about with 70.5 cm. When this cultivar grew below $15^{\circ}C$ and 1,000 lux, the petals color became dark red in winter season. 'Love Letter' was registered as a new cultivar on Korea Seed & Variety Service (KSVS) with No. 4482 on May 8, 2013.

• Horticultural Science & Technology
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• v.17 no.6
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• pp.758-760
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• 1999

This experiment was carried out to investigate the effect of pretreatments and holding solutions on quality and vase life of cut 'Saphir' rose (Rosa hybrida L.). Pulsing with aluminum sulfate or NaOCl prolonged vase life held in HQS+sucrose+ethionine. Solution absorption held in distilled water were more increased than held in HQS+sucrose+ethionine. Holding solution with 8-hydroxyquinoline sulfate (HQS)+sucrose+ethionine increased fresh weight compared with distilled water except pulsing with STS+sucrose. Pulsing with aluminium sulfate delayed bent-neck held in HQS+sucrose+ethionine. Flower diameter and dry weight of petal held in HQS+sucrose+ethionine were more increased than held in distilled water except pulsing with STS+sucrose. There were no significance in Hunter color value 'L' and value 'a', but value 'b' was decreased held in distilled water.

• Korean Journal of Breeding Science
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• v.41 no.1
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• pp.40-43
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• 2009

A new standard rose cultivar "Peach Pudding" was bred from the cross between deep red standard cultivar 'Red Sandra' and light pink standard cultivar 'Dolores' at the National Horticulture Research Institute. The cross was made in 2000 and "Peach Pudding" was finally selected in 2006 after investigating characteristics for three years from 2002 to 2006. 'Peach Pudding', a pink standard cultivar has good flower shape and fashionable flower color. The major characteristics of this cultivar are 113.1 stems/$m^2$/year in yield, 60.6 cm in length of cut flower, 8.7 cm in flower diameter, 38.6 in petal number, and 12.8 days in vase life. This cultivar can be propagated by both cutting and grafting. The consumer's preference of this cultivar is relatively higher than that of control cultivar, 'New Miracle'.

• FLOWER RESEARCH JOURNAL
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• v.17 no.3
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• pp.190-193
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• 2009

A new standard rose cultivar 'Happy Day' was bred from the cross between pink standard cultivar 'Vivaldi' and pink standard cultivar 'Medeo' at the National Institute of Horticulture & Herbal Science. The first cross was in 2003 and 'Happy Day' was finally selected in 2008 after investigating characteristics for three years from 2006 to 2008. 'Happy Day', a pink standard cultivar grows vigorously and has powder mildew resistance. The major characteristics of this cultivar are $160stems\;m^{-2}$ per year in yield, 79.2 cm in length of cut flower, 9.9 cm in flower diameter, 28.8 in mean petal number, and 11.8 days in vase life. This cultivar can be propagated by both cutting and grafting. The consumers' preference of this cultivar is relatively higher than that of control cultivar, 'Nobleless'.

• FLOWER RESEARCH JOURNAL
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• v.17 no.4
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• pp.332-335
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• 2009

A new cultivar of Rosa hybrida 'Loving Heart' was developed by crossing Gyeongkyo R-6 and 'Noblesse' at Gumi Floricultural Experiment Station in 2002. Characteristics trials were conducted three times from 2004 to 2007. This cultivar showed dark pink flower color (RHS, Red-purple group 66-B) and standard type with good flower shape. The flower diameter is 10.3cm and the number of petals per flower is 55. Vase life of 'Loving Heart' could be as long as 12.3days. The yield of 'Loving Heart' was $127stems/m^2/year$. 'Loving Heart' has good quality of cut flower and strong vigor in plant growth. This cultivar has straight stems and is easy to culture because of a few prickles on the top of stem. This cultivar is appropriate for both soil and solution(hydroponics) cultures.