• Title/Summary/Keyword: %24Dendranthema%24 %24grandiflourm%24

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Damage and Occurrence of Pratylenchus vulnus and Paratylenchus sp. on Spray Chrysanthemum, Dendranthema grandiflourm Kitamura (스프레이국화재배지의 사과뿌리썩이선충과 침선충의 발생 및 피해)

  • Lee, Jae-Kook;Park, Byeong-Yong;Choi, Dong-Ro;Heo, Jae-Won
    • 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.

A New Spray Chrysanthemum Cultivar, 'Dream Moon' with Pink Color and Single Type (분홍색 홑꽃형 스프레이 국화 '드림문' 육성)

  • Jung, Yun Kyung;Lim, Jae Wook;Lee, Sang Duk;Lee, Young Soon;Yu, Ye Young
    • Korean Journal of Breeding Science
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    • v.42 no.6
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    • pp.606-610
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    • 2010
  • A new cultivars Dendranthema grandiflourm 'Dream Moon' was developed at Gyeonggi-do Agricultural Research and Extension Services (GARES), Korea in 2008. The cultivar 'Dream Moon' was derived from a cross between 'Patra', a spray cultivar with yellow single type, and 'Sei-rosa', a spray cultivar with pink single type in 2005. The cultivar has single type flowers with pink petals. Trial evaluation was conducted from 2006 to 2008 for a shading cultivation in summer and a retarding cultivation in spring. The flowering time of 'Dream Moon' is late October, and year-round flowering is possible by shade or light treatment. The diameter of flower is 56.0 mm. Numbers of flowers per stem and petals per flower are 16.4 and 24.6, respectively. After investing of specific characters from 2006 to 2008, it was finally selected and named 'Dream Moon'. It has resistance to white rust and the vase life is about 20.7days in autumn season.

A New Spray Chrysanthemum Cultivar, 'Dream Water' with Single Type for Cut Flower (홑꽃형 절화용 스프레이 국화 '드림워터' 육성)

  • Jung, Yun-Kyung;Lim, Jae-Wook;Kim, Sung-Kee;Lee, Young-Soon;Yu, Ye-Young
    • Horticultural Science & Technology
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    • v.30 no.2
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    • pp.220-223
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    • 2012
  • A new cultivar $Dendranthema$ $grandiflourm$ 'Dream Water' was developed at Gyeonggi-do Agricultural Research & Extension Services, Korea in 2009. The cultivar 'Dream Water' was initially derived from the cross in 2005 between 'Patra', a spray chrysanthemum cultivar with yellow single type, and 'Ruces', a spray chrysanthemum cultivar with white single type. The cultivar has single type with ivory petals. Trial evaluation was conducted from 2006 to 2009 for selection of this variety, including a shading culture in spring and a retarding culture in summer. The flowering time of 'Dream Water' was October 24th, and year-round flowering is possible by shading or lighting treatment. The diameter of the flower is 56.0 mm. Number of flowers per stem and petals per flower are 11.1 and 26.8, respectively. Its leaf color was green (Green Group 147A) and plant height was 89.7 cm. Days to flowering under the short day treatment is about 54 in spring, and diameter of flower center was 1.4 cm in the summer. The vase life was 16.7 days in autumn and consumer's preference of new spray chrysanthemum is high level than control.

Breeding of a New Spray Chrysanthemum Cultivar, 'Dream Round' with Dark Pink Petals and Thick Stem of Anemone Type for Cut-flower (줄기가 강건하고 진분홍색인 아네모네형 절화용 스프레이 국화 신품종 '드림라운드' 육성)

  • Jung, Yun Kyung;Kim, Sung Kee;Kim, Hee Dong;Lee, Young Soon
    • Horticultural Science & Technology
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    • v.31 no.4
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    • pp.517-521
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    • 2013
  • A new cultivar Dendranthema grandiflourm 'Dream Round' was developed at Gyeonggi-do Agricultural Research & Extension Services (GARES), Korea in 2010. The variety 'Dream Round' was initially derived from a cross in 2006 between 'Hebo' a seed parent, a spray chrysanthemum cultivar with white anemone type, and 'Samos' as a pollen parent, a spray chrysanthemum variety with white anemone type. The cultivar has anemone type with white petals. Trial evaluation was conducted from 2008 to 2010 for the selection of that cultivar, including a shading culture in spring and a retarding culture in summer. The flowering time of 'Dream Round' was October 24th, and year-round flowering was possible by shading or lighting treatment. The diameter of flower of 'Dream Round' was 34.1 mm. Numbers of flowers per stem and petals per flower of 'Dream Round' were 12.8 and 26.1, respectively. Its leaf color was green (Green Group 147A) and plant height was 92.4 cm. Days to flowering of 'Dream Round' under the short day treatment was about 54 in spring, and diameter of flower of 'Dream Round' was 34.2 mm in the summer. The vase life of 'Dream Round' was 21.7 days in autumn.