Breeding of Rose 'Gippeumi' with Orange-Red Flower through Gamma Irradiation

감마선 조사에 의한 주황색 장미 '기쁘미' 육성

Koh, Gab-Cheon;Ahn, Kyu-Bin
고갑천;안규빈

  • Published : 20081200

Abstract

A new rose (Rosa hybrida Hort.) ‘Gippeumi’ was developed by a mutation breeding through gamma irradiation. The rooted cuttings of a rose ‘Kardinal’ were irradiated with 70 Gy of gamma-rays from 60Co source in 2002. The irradiated plants were planted at field in 2002, and tested for the appearance of petal color mutants from 2002 to 2003. A branch with an orange-red (Red group, 43A~43B) flower was induced from a ‘Kardinal’ plant with the red (Red group, 44A, 45B) flower in 2003. To induce a stable mutant, the plant with a solid mutant branch was transplanted and tested in greenhouse from 2004 to 2005. The stable mutant was propagated by cutting at 2006, and cultured from 2006 to 2008. It was named ‘Gippeumi’ in 2008 because its bright orange-red is different from the red of ‘Kardinal’. ‘Gippeumi’ shows a standard flower with beautiful shape. It has 11.7 ㎝ wide flowers, 38 petals per flower, more or less strong fragrance, and vase life of about 7.5 days. It has 65.7 ㎝ long stem and 10.0 ㎝ long peduncle close to its original cultivar, Kardinal.

장미 ‘카디날’에 감마선을 조사하여 돌연변이 신품종 ‘기쁘미’를 육성하였다. 2002년에 70Gy 선량의 감마선을 처리한 ‘카디날’ 삽목묘를 포장에서 심고 재배하며 돌연변이 개체의 발생을 조사하였다. 2003년 주황색의 가지 돌연변이를 발견하여 이를 온실에서 옮겨 심고 2004년부터 2005년까지 재배하면서 이 변이가 완전변이체로 고정된 것을 확인하였다. 이 계통은 2006년 삽목으로 증식하여 2006~2008년 재배하고 특성을 조사한 결과, 우수한 것으로 나타나 이를 ‘기쁘미’로 명명하였다. 원품종인 ‘카디날’의 화색이 적색(Red group, 44A, 45B)인데 비해 ‘기쁘미’는 밝고 화사한 파스텔색 계통의 주황색(Red group, 43A~43B)을 나타내었다. 화폭은 11.7㎝이며, 꽃잎 수는 38.0장이고 향기는 다소 강한편이며 절화수명은 7.5일 내외를 나타내었다. 절화장과 화수장이 각각 65.7㎝, 10.0㎝로 ‘카디날’과 유사하게 나타났다.

Keywords

References

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