• Title/Summary/Keyword: flower diameter

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Breeding of Cut Rose 'Loving Heart' with Good Flower Shape and Dark Pink Petal Color (화형이 우수한 진분홍색 절화장미 'Loving Heart' 육성)

  • Han, Youn Yol;Ko, Jin Yong;Kwon, Min Kyung
    • 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.

STUDIES ON THE GENETIC ANALYSIS AMONG BURLEY, FLUE-CURED AND SUN-CURED TYPE TOBACCO 1. HETEROSIS, CORRELATION AND COMBINING ABILITY OF $F_1$ HYBRID (버어리종, 황색종, 양건종, 담배의 유전분석에 관한 연구 I. $F_1$의 잡종강세, 상관 및 조합능력)

  • 한철수
    • Journal of the Korean Society of Tobacco Science
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    • v.7 no.2
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    • pp.99-109
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    • 1985
  • The present studies were carried out to obtain some basic informations of the breeding of tobacco varieties. Genetically divergent 8 varieties, 3 flue-cured, 2 burley and 3 sun-cured tobaccos, were used in half diallel cross. In order to analyze the heterosis, combining abilities, modes of inheritance and correlations for some agronomic and chemical characters, 8 parents and 28 $F_1$ were tested. The results obtained were summarized as follows: The percentages of heterosis for stem diameter, internode length and total sugar content in $F_1$ hybrid were 3.6%, 3.1% and 10.6%, whereas these for days to flower, total alkaloids and leaves per plant were -6.3%, -6.9% and -5.0%, respectively. Yield had significant positive genotypic correlations with plant height, days to flower and leaf length, but negative with internode length and total sugar content. It also had significant prositive phenotypic correlations with plant height, days to flower, leaves per plant, leaf length, leaf width and leaf shape index (Leaf length/leaf width). General (GCA) and specific combining abilities (SCA) for all characters of $F_1$ hybrid were significant. The effects of GCA were positive on yield, plant height, stem diameter, leaves per plant and days to flower of Burley 21. And those were positive on yield, leaf shape index and plant height, but negative on leaves per plant and total nitrogen of Hicks. The effects of SCA for yield and leaves per plant were greater than those of others on the combinations of Coker 139 and Burley type, respectively.

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A New Yellow and Semi-double Gerbera Cultivar 'Sunny Lemon' with Early Flowering and High Yielding (조기개화성 및 다수성 황색 반겹꽃 거베라 신품종 'Sunny Lemon')

  • Park, Sang Kun;Lim, Jin Hee;Choi, Seong Youl;Shin, Hak Ki;Lee, Jung Soo
    • Korean Journal of Breeding Science
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    • v.42 no.6
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    • pp.703-706
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    • 2010
  • A new gerbera cultivar 'Sunny Lemon' was released by the National Institute of Horticultural and Herbal Science (NIHHS) in 2009. A cross was made between 'Pavlov' and 'Patrick' with pink and semi-double in 2006. After investigation of the characteristics for four years (from 2006 to 2009), it was selected for the use of cut flower. 'Sunny Lemon' is a vigorous cultivar with yellow flower color (RHS Y9C), brown center and semi-double. The average flower diameter is 11.0 cm. And inner ray floret and disc diameter are 7.63 cm and 2.59 cm, respectively. Days to first blooming are 84.5, approximately 2 weeks earlier than the standard cultivar. It produces a large yield with continuous supply of cut flowers and has adequate peduncle height. We believe that 'Sunny Lemon' has a great potential for expanding cultivated area of domestic gerbera cultivars and increasing farmers' income.

Breeding a New Gerbera Cultivar 'Ringgo' with Orange and Semi-Double for Cut-Flower Production (오렌지색 반겹꽃 절화용 거베라의 신품종 'Ringgo' 육성)

  • Park, S.K.;Ko, K.N.
    • Journal of Practical Agriculture & Fisheries Research
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    • v.20 no.2
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    • pp.99-104
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    • 2018
  • A new gerbera cultivar 'Ringgo' was bred by the 'Seohaenongsan' in 2013. 'Ma' with yellow and 'Caravan' with salmon orange, which have semi-double flower, were artificially crossed in 2010. After investigation of the characteristics for four years (from 2010 to 2013), it was selected specially for the use of cut flower. The 'Ringgo' had brilliant orange color (RHS O24A) with dark brown center. The flower was semi-double and 11.1 cm in diameter. And inner ray floret and disc diameter are 6.6 cm and 2.8 cm, respectively. It is a vigorous cultivar having a long and thick peduncle of which length and upper width were 54.7 cm and 4.6 mm, respectively. The vase life of 'Harmony' was 10.1 days, which was 1.2 days longer than the standard cultivar 'Dune'. And its average yield was 55.3 stems per plant, which were 6.6 stems more than the control.

Effects of Removing Time of Flower Buds on Root Yield and Paeoniflorin Content in Paeonia lactiflora Pallas (작약(芍藥) 화뇌제거시기에 따른 근수량(根收量)과 Paeoniflorin함량(含量) 변화(變化))

  • Kim, Ki-Jae;Park, Chun-Hong;You, Oh-Jong;Shin, Jong-Hee;Park, So-Deuk;Choi, Boo-Sull;Yeo, Soo-Kab
    • Korean Journal of Medicinal Crop Science
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    • v.6 no.3
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    • pp.193-197
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    • 1998
  • This experiment was carried out to determine the proper time for flower bud removing to improve growth, yield and paeoniflorin content of root in peony(Paeonia lactiflora Pallas). The flower buds removement caused short stem length by $7{\sim}9cm$ compared with control, but number of stem and stem diameter were similar to that of control. The number of root, fresh root weight and paeoniflorin content in peony increased when their flower buds were removed at earlier stages. The root dry weight was highest of 1.647kg/10a, and increased by 27% compared with control when their flower buds were removed at early stage (bud diameter was less than 10mm). The root dry weight increased by 13% and 10%, respectively. when their flower buds were removed prior to flowering and at flowering stage. Paeoniflorin content in leaf was higher than that in stem, and was higher at early stage. Leaf and stem showed higher paeonif1orin content when their flower buds were removed.

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Synthesis, Structural Characterization, and Catalytic Activity of Flower Like ZnO Nanostructures

  • Ramachandran, K.;Kumar, G. Gnana;Kim, Ae Rhan;Yoo, Dong Jin
    • Bulletin of the Korean Chemical Society
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    • v.35 no.4
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    • pp.1091-1097
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    • 2014
  • Tageteserecta flower like zinc oxide nanostructures composed of hexagonal nanorods were synthesized via sonochemical method at room temperature. The synthesized nanomaterials exhibited wurtzite hexagonal phase structure with the single crystalline nature. The diameter of the individual nanorods that constitute the flower shaped zinc oxide structures is in the range of 120-160 nm. The sonication time effectively determined the morphological properties of the prepared materials. The catalytic activity of prepared zinc oxide nanostructures towards N-formylation reactions were evaluated without any surface modification and the nanostructures exhibited good reaction yield with the prompt recyclability behavior.

Synthesis of Zinc Oxide Nano Rods, Sheet and Flower at $80^{\circ}C$ by the Sol-gel Method

  • Wahab, Rizwan;Ansari, S.G.;Kim, Y.S.;Dar, M.A.;Shin, H.S.
    • Proceedings of the Korean Powder Metallurgy Institute Conference
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    • 2006.09a
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    • pp.676-677
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    • 2006
  • Synthesis of zinc oxide nanorods, sheets and flower like structure were done by the sol-gel method using zinc acetate dihydrate and sodium hydroxide at $80^{\circ}C$ with 12 hours refluxing time nanorods, in case of as synthesized powder, with diameter of 20-60nm. Annealing at higher temperature (300 and $500^{\circ}C$,) in air ambient changes the morphology to sheet and flower like structure. The standard peak of zinc oxide was observed in IR at $523cm^{-1}$. The UV-VIS spectroscopy of zinc oxide shows a characteristic peak at 375nm.

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A New Spray Chrysanthemum Cultivar, 'Noble Wine' with Good Color, Single Type and Bi-color Petals for Cut Flower (화색이 우수한 복색 홑꽃 스프레이국화 'Noble Wine' 육성)

  • Hwang, Ju Chean;Chin, Young Don;Chung, Yong Mo;Kim, Su Gyeong;Jeong, Byoung Ryong
    • FLOWER RESEARCH JOURNAL
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    • v.17 no.2
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    • pp.137-140
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    • 2009
  • A new spary chrysanthemum(Dendranthema grandiflorum) cultivar 'Noble Wine' was developed from a cross between 'SL03-01' and 'Artist Pink' by selection of seedlings and lines at the Flower Research Institute, Gyeongnam Agricultural Research and Extention 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 'Noble Wine' was October 26th, and yearround production was possible by day length treatment. Its capitulum was 5.4 cm in diameter, and had 21.6 ray florets and 28.5 head per stem in autumn. Its ray floret was red-purple with green central zone. 'Noble Wine' was about 45 days in spring, and 'Noble Wine' showed the vase life of 21.3 days in autumn. This cultivar was registered for a commercialization in 2007.

Breeding of Cut Rose 'Wooami Salmon' with Good Productivity (다수성 절화장미 'Wooami Salmon' 육성)

  • Han, Youn Yol;Ko, Jin Yong;Kwon, Min Kyung;Seong, Jeon Joong
    • FLOWER RESEARCH JOURNAL
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    • v.16 no.3
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    • pp.218-221
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    • 2008
  • A new cultivar of Rosa hybrida 'Wooami Salmon' was developed by crossing 'Silver 87' and 'Lambada' at Gumi Floricultural Experiment Station in 2001. Characteristics trials were conducted three times from 2003 to 2006. This cultivar showed pale salmon flower color (RHS, Orange group 27-B) and standard type with good flower shape. The flower diameter is 10.8cm and the number of petals per flower is 46. Vase life of 'Wooami Salmon' could be as long as 12.8 days. The yearly mean yields of 'Wooami Salmon' was $129stems/m^2$. 'Wooami Salmon' has good quality of cut flower and strong vigor in plant growth. This cultivar is appropriate for both soil and solution(hydroponics) cultures.

A New Early Flowering, Spray Chrysanthemum Cultivar for Cut Flower, "Green witch" with Pompon Type and Green Petals (조기개화성의 녹색 폼폰형 절화용 스프레이국화 "그린위치" 육성)

  • Hwang, Ju Chean;Chin, Young Don;Kim, Jin Ki;Kim, Su Kyeong
    • Korean Journal of Breeding Science
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    • v.41 no.4
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    • pp.529-533
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    • 2009
  • A new spray chrysanthemum (Dendranthema grandiflorum) cultivar "Green Witch" was developed from a cross between 'S04161' and 'S04109' by selection of seedlings and lines at the Flower Research Institute, Gyeongnam Agricultural Research and Extension Services (ARES) from 2004 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 "Green Witch" was October 19th, and year-round production was possible by day length treatment. Its capitulum was 3.2cm in diameter, and had 15.9 head per stem in autumn. Its ray floret was green central zone. To flower in the short day condition, for "Green Witch" was about 44 days in spring, and "Green Witch" showed the vase life of 25.3 days in autumn. This cultivar was registered for a commercialization in 2008.