• Korean Journal of Plant Resources
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• v.25 no.4
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• pp.504-506
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• 2012

Hosta 'Yellow Tiara' was induced using methyle methane sulfonate (MMS) to obtain mutagens. Among the induced leaf-variegated hosta plants, some with yellow-green leaves were selected. They were cultivated via vegetative propagation. Assessment of the botanical characteristics was conducted for three years since 2004. The major characteristic of these cultivars is that they maintain their yellow-green leaves uniformly all year round. These cultivars are useful as materials for pot plants or as ground cover.

• Journal of Plant Biotechnology
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• v.41 no.3
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• pp.140-145
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• 2014

This study were carried out for selection of proper transformation variety and development of efficient regeneration and transformation methods. The number of shoot in commercial varieties of gourd plant were 0 ~ 7.3. and fusarium wilt resistant pure lines were 2.0 ~ 6.5 per dish containing on MS medium supplemented with 3 mg/L BA. The shoot regeneration frequency of fusarium wilt resistant pure lines were wide variation on the deviation. The expression of GFP was high 67% and 100% at the co-cultivation with Agrobacterium. The effective shoot regeneration plant hormone were combination BA and 2,4-D. The number and elongation condition of shoot was good after 4 weeks change with MS medium supplemented with 1 mg/L BA. Effective callus production plant hormone were combination of 3 mg/L BA and 0.1 mg/L 2.4-D.

• Proceedings of the Plant Resources Society of Korea Conference
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• 2019.04a
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• pp.88-88
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• 2019

현삼과(Scrophulariaceae)의 둥근산꼬리풀(Veronica rotunda Nakai)은 흰색의 꽃이 총상화서로 피며, 관상용으로 쓰인다. 또한, 접선골도라 하여, 전초를 약용하고 활혈, 지혈, 청폐열, 화간위에 효능이 있는 자생식물이다. 본 연구는 둥근산꼬리풀의 포트 재배방법 확립을 위하여 2018년 5월 15일에 파종하여 생산된 유묘를 7월 16일에 정식하여 10월 15일까지 약 14주 동안 수행하였다. 식재용기 실험은 비닐포트[3치($7{\times}7cm$), 4치($9{\times}8.5cm$)]와 플라스틱 화분[8호($7{\times}7cm$), 10호($9{\times}9cm$), 12호($10.5{\times}10.5cm$)]를 이용하였고, 토양 종류[중화 피트모스:펄라이트(3:1, 4:1), 마사토:중화 피트모스(2:1, 3:1)], 묘의 소질[파종 립수(1, 2, 4, 6립), 파종 용기(162, 200, 288구 트레이)] 등의 연구를 진행하였다. 대조구는 플라스틱 화분 10호에 원예상토를 충진하고 200구 트레이에 4립씩 파종하여 생산된 1셀을 정식하였다. 연구의 결과, 식재용기에 따른 둥근산꼬리풀의 생육은 플라스틱 12호 화분에서 가장 양호하였으며, 토양의 양이 많을수록 전반적인 생육이 증가하였다. 토양 종류별로는 원예상토에서 재배한 처리구에서 양호한 생육을 보였다. 중화 피트모스와 펄라이트 3:1 혼용토의 경우, 원예상토와 전반적인 생육에 큰 차이가 없어 이용가치가 있을 것으로 판단된다. 한편, 피트모스의 비율이 높은 4:1 혼용토에서는 비교적 생육이 억제되었으며, 잎이 황화되었다. 마사토와 중화 피트모스의 혼용토는 원예상토에 비해 왜화되는 결과를 보였으며, 측지수, 마디수, 엽수에는 큰 영향을 주지 않았다. 그러나 개화율을 감소시키는 결과를 보였다. 셀당 파종한 종자의 양을 달리하여 생산된 유묘를 정식하여 재배한 결과, 전반적인 생육은 1립 파종구에서 양호하였다. 한편, 파종량이 많을수록 초장, 절간장이 감소하며, 포트당 마디수, 측지수 및 개화율이 증가하여, 본 연구의 목표인 관상적 이용에 적합한 것으로 판단된다. 파종용기별 생산된 유묘이식 결과, 초기생육이 왕성할수록 후기생육도 우수하였다. 162구 생산묘 정식구는 다른 처리구보다 전반적으로 생육이 왕성하였으며, 다음으로 200구 순이었다. 파종용기에 따른 묘의 크기는 정식 후의 개화율에 유의적인 차이가 없었다. 따라서, 둥근산꼬리풀의 재배는 플라스틱 화분 12호에 원예상토를 충진하여 162구 트레이에 셀당 6립 파종하여 생산된 유묘를 정식하는 것이 분화용 재배에 효과적인 것으로 생각된다. 한편, 재배에 이용되는 토양의 종류에 따른 비율 및 개화촉진 등의 추가적인 연구가 필요하다.

• Landscaping Tree
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• s.107
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• pp.23-25
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• 2008

이름의 유래는 다양하다. 아래로 향한 꽃잎 모양이 처녀 미니스커트를 닮아 붙였다고 하며, 아래의 가지런한 잎들이 치마모양을 하고 있어 그런 이름을 붙였다는 사람도 있다. 일본 이름을 잘못 번역한 것이라 보고도 있다. 처녀치마는 초본류 중 얼마 안 되는 상록성 식물로써 백합과에 속하며, 고산의 능선 북사면이나 보통 산의 웬만큼 습기가 있는 골짜기에서 흔히 자생한다. 자생지에서 보면 한 겨울 꽁꽁 언 얼음골 옆에서도 녹색을 유지하며 꿋꿋이 견뎌낸다. 연중 상록인 잎 모양도 예쁘지만 봄에 피는 꽃은 매우 아름답다.

• Proceedings of the Korean Society for Bio-Environment Control Conference
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• 2000.10b
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• pp.51-57
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• 2000

고품질의 경쟁력이 있는 상품을 지속적으로 생산하기 위해서는 각 작물별 적합한 배양토(토양조건) 선정과 과학적인 영양(비배)관리가 절실히 요구된다. 이미 선진국에서는 분화용 또는 재배용 배양토를 기능적으로 전문화하여 산업에 활용하고 있으며, 이 분야에 대해서 가축분뇨 등 폐자원을 이용한 배양토 생산이 실용화되고 있다. 국내에서 공정육묘용 상토와 화분용, 식물재배용 배양토에 사용되는 원료(피트모스, 펄라이트, 암면 등)는 거의 대부분 외국으로부터 수입에 의존하고 있으며, 국내의 대규모 기업형 축사 또는 돈사에서 발생되는 축분은 환경오염의 근원이 되나 충분히 부숙 또는 특수가공처리를 한다면 필요한 배양토 조제에 효율적이고 기능적인 자원으로 활용할 수 있을 것으로 평가되고 있다. (중략)

• Korean Journal of Plant Resources
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• v.34 no.2
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• pp.172-176
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• 2021

The Hosta 'Hwangnarae' was bred at the Korea National Arboretum, which was induced using ethyl-methanesulfonate (EMS) to obtain mutants. Among the leaf variegated Hosta plants, some with yellowish-green color pattern on the edge of the leaves was selected. They were cultivated through vegetative production. Assessment of the botanical characteristics was executed for six years from 2013 to 2018. Major characteristics such as yellowish-green color pattern on the edge of leaves appeared uniformly and was finally selected in 2019. The Hosta 'Hwangnarae' that have been bred in this way can prove to be useful as material for a ground cover plant or pot plant.

• Korean Journal of Plant Tissue Culture
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• v.28 no.4
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• pp.221-225
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• 2001

Some factors of wounding methods, solidifying agents, origin of leaf explants, cone. of acetosyring-one, and MES affecting regeneration and transformation by Agrobacterium tumefaciens were investigated to establish an efficient transformation system of apple. Wounding by cutting the leaves merely showed the tendency of regeneration and transformation with higher efficiency compared with that of wounding by non-traumatic forcep when carrying out co-cultivation for three days after bacterial inoculation. While examining the solidifying agents of medium with the combination of agar (A)＋Gelrit $e^{ }$ (G) in g. $L^{-1}$ , the higher concentration of Gelrit $e^{ }$ increased the efficiency of regeneration. However, there was no difference in the efficiency of transformation from the treatments of 2.5 G, 3.5 A+1.2 G, and 7.0 G. The origin of leaf explants showed no difference statistically in the efficiency of regeneration and transformation, but that from the shoots of proliferation medium showed the tendency with higher efficiency. The concentration of above 0.1 mM acetosyringon had an increase in the efficiency of regeneration and transformation and the concentration of 0.15 mM had the highest efficiency of transformation in the treatment of acetosyringone with different concentration. There was no effect of MES on regeneration and transformation.ion.

• Journal of the Korean Institute of Landscape Architecture
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• v.47 no.5
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• pp.49-65
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• 2019

This study was carried out to investigate the domestic and international development of a new cultivar of the Rose of Sharon (Hibiscus syriacus L.), the Korean national flower, and the protection of the new plant variety. In addition, it will be used as basic data for the expansion of domestic distribution, promoting oversea export, and expanding the range of landscape architectural use. A total of 97 varieties received plant variety protection rights from the Korea Seed & Variety Service from 2004 to 2018. The selection criteria were plants having unique flowers, growth habits, and variegated leaves. Some cultivars with unique features, such as flower size, shape, and red eyes were available for focus planting. Plant varieties with tall and strong growth patterns have been highly valuable for street and focus planting. Cultivars with dwarf stems and compact branches are utilized for pot planting and bonsai. The protected cultivars were mostly single flower varieties, with two semi-double flowers. There were 57 cultivars of pink flowers with red eyes and 21 cultivars of white flowers with red eyes. There were 61 cultivars developed by crossing, 23 cultivars through interspecific hybridization and 7 cultivars developed through radiation treatment and mutation. The Hibiscus cultivars registered to the United States Patent and Trademark Office (USPTO) consisted of seven cultivars each from the United States, the United Kingdom, and the Netherlands, four from South Korea, and three from Belgium. The Hibiscus cultivars registered to the European Community Plant Variety Office (CPVO) consisted of 16 cultivars from France, 9 from the Netherlands, 5 from the UK and 1 from Belgium. The cultivars that received both plant patent and plant breeder rights in the United States and Canada were 'America Irene Scott', 'Antong Two', 'CARPA', 'DVPazurri', 'Gandini Santiago', 'Gandini van Aart', 'ILVO347', 'ILVOPS', 'JWNWOOD 4', 'Notwood3', 'RWOODS5', 'SHIMCR1', 'SHIMRR38', 'SHIMRV24', and 'THEISSHSSTL'. 'SHIMCR1' and 'SHIMRV24' acquired both domestic plant protection rights and overseas plant patents. The 14 cultivars that received both US plant patents and European protection rights were 'America Irene Scott', 'Bricutts', 'DVPAZURRI', 'Gandini Santiago', 'Gandini van Aart', 'JWNWOOD4', 'MINDOUB1', 'MINDOUR1', 'MINDOUV5', 'NOTWOOD3', 'RWOODS5', 'RWOODS6', 'Summer Holiday', and 'Summer Night'. The cultivars that obtained US patents consisted of 18 cultivars (52.9%) with double flowers, 4 cultivars (11.8%) with semi-double flowers, and 12 cultivars (35.3%) with single flowers. The cultivars that obtained European new variety protection rights, consisted of 11 cultivars (34.3%) with double flowers, 12 cultivars (21.9%) with semi-double flowers, and 14 cultivars (43.8%) with single flowers. In the future, new cultivars of H. syriacus need to be developed in order to expand domestic distribution and export abroad. In addition, when developing new cultivars, it is required to develop cultivars with shorter branches for use in flower beds, borders, hedges, and pot planting.

• Korean Journal of Plant Tissue Culture
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• v.22 no.5
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• pp.299-306
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• 1995

The objective of this study is to establish an efficient celll culture system for somatic embryogenesis in Ostericum koreanum and Angelica purpuraefolia. The highest frequency of embryogenic callus on immature seeds of O. konanum and A, purpuraefolia. was obtained when seeds were cultured on MS medium containing 0.1 mg/L 2,4-D and 0.1 mg/L BA. However somatic embryos were formed directly from the edge of cotyledon and hypocotyl of plant which regenerated on medium supplemented with 0.1-3.0 mg/L NAA. Immature seed explane cultured at 25$\pm$2$^{\circ}C$ after 10 days treatment at 5$^{\circ}C$ produced embryogenic callus and somatic embryos, and these differentiated into whole plane. Addition of glutamine and coconut milk to media did not enhance the frequency of somatic embryogenesis in immature seed cultures of A. purpuraefolia. However in immature seed culture of O. koreanum, the frequency of somatic embryogenesis were increased on media supplemented with glutamine and 10% coconut milk. Especially addition of glutamine to the medium substituted effect of NH$_4$N0$_3$ in constast to coconut milk. The highest frequency of conversion somatic embryos into plantlet was 89.1% on MS basal medium Embryogenic calli were grown vigorously when maintained on medium with 0.01 mg/L 2,4-D and 0.01 mg/L BA.

• Korean Journal of Plant Resources
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• v.27 no.5
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• pp.588-592
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• 2014

A new Saxifraga fortunei cultivar 'Whitegreen' was bred by crossing between 'Daewoojoo' with Pale Green (Y-G145-C) colored petals and 'Kwanglim' with light Yellow green (Y-G145A) colored petals. The selection and flower characterization were conducted from 2004 to 2008 in greenhouse of Highland Agriculture Research Center, NICS, RDA. Flowering in 'Whitegreen' Showed from September 20 th for 33 days. The number of petals were 11.4 ea., with a width of 1.4 cm and length of 1.4 cm. The plant height was 20.7 cm, and number of leaves per plant was 48.3 ea., with a width of 3.4 cm and length of 3.0 cm. 'Whitegreen' cultivar can be used as a pot flower. 'Whitegreen' plants grown under 50% shade of sunlight have higher degree of acclimation compared to those under direct sunlight. And soft rot disease would occur usually by over-irrigation. 'Whitegreen' cultivar was registered as a novel variety with No. 3456 in Korea seed and variety service on April 2011.