Horticultural Science & Technology (원예과학기술지)

Korean Society of Horticultural Science (한국원예학회)
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A Standard Rose Cultivar 'Love Letter' with Thornless Stems and Red Colored Petals for Cut Flowers

무가시성 적색 절화장미 '러브레터' 육성

  • Lee, Young Soon (Horticulture Industrial Research Division, Gyeonggi-do Agricultural Research & Extension Services) ;
  • Jung, Yun Kyung (Horticulture Industrial Research Division, Gyeonggi-do Agricultural Research & Extension Services) ;
  • Park, Mi Ok (Horticulture Industrial Research Division, Gyeonggi-do Agricultural Research & Extension Services) ;
  • Lim, Jae Wook (Horticulture Industrial Research Division, Gyeonggi-do Agricultural Research & Extension Services)
  • 이영순 (경기도농업기술원 원예산업연구과) ;
  • 정윤경 (경기도농업기술원 원예산업연구과) ;
  • 박미옥 (경기도농업기술원 원예산업연구과) ;
  • 임재욱 (경기도농업기술원 원예산업연구과)
  • Received : 2013.07.17
  • Accepted : 2013.11.19
  • Published : 2014.04.30
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Abstract

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.

장미 신품종 'Love Letter'는 경기도농업기술원에서 2011년에 종자친 'Red Giant'와 화분친 'Ensemble' 간의 교배를 통하여 얻게 된 교잡 후대로부터 선발되었다. 2007년에 교배실생 개체를 양성하였고, 2008년부터 2011년까지 3회 특성검정한 결과 절화특성의 우수성이 인정됨으로써 최종 선발하여 'Love Letter'로 명명하였다. 화형은 스탠다드이며, 화색은 적색(RHS Red Group 46A)이다. 화폭은 9.3cm이고 꽃잎수는 32.4매이며, 개화소요일수는 43일이다. 줄기에 가시가 없으며 절화 길이는 70.5cm이고 절화중은 40.0g이다. 연간 절화수량은 152본/$m^2$이며 절화수명은 12일이다.

Keywords

References

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