Expanded Uses and Trend of Domestic and International Research of Rose of Sharon(Hibiscus syriacus L.) as Korean National Flower since the Protection of New Plant Variety

Abstract

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 Journal of the Korean Institute of Landscape Architecture 195Irene Scott,`Antong Two,`CARPA`,DVPazurrì,Gandini Santiago,`Gandini van Aart,ÌLVO347,ÌLVOPS`,JWNWOOD 4,Ǹotwood3,RWOODS5`,SHIMCR1,SHIMRR38,SHIMRV24, andTHEISSHSSTL.SHIMCR1`andSHIMRV24`acquired both domesti c pl ant protecti on rights and overseas pl ant patents.The 14 cultivars that received both US plant patents and European protection rights wereÀmeri ca Irene Scott,Bricutts`, DVPAZURRI,Gandi ni Santi ago,Gandini van Aart,`JWNWOOD4,MINDOUB1,MINDOUR1,`MINDOUV5,`NOTWOOD3, RWOODS5,RWOODS6,Summer Hol iday, andSummer Ni ght. The cul ti vars that obtai ned US patents consi sted of 18 cul ti vars (52. 9%) with double flowers, 4 cultivars (11.8%) with semi -double flowers, and 12 cultivars (35. 3%) with si ngle flowers. The cultivars that obtained European new variety protection ri ghts, consisted of 11 cultivars (34. 3%) wi th double flowers, 12 cultivars (21. 9%) wi th semi-double flowers, and 14 cultivars (43. 8%) with si ngle fl owers. In the future, new cul ti vars of H. syriacus need to be devel oped i n order to expand domesti c di stri buti on and export abroad. In addi ti on, when devel opi ng new cul ti vars, i t i s requi red to develop cul ti vars wi th shorter bran...

Genetic Insights into the Extremely Dwarf Hibiscus syriacus var. micranthus: Complete Chloroplast Genome Analysis and Development of a Novel dCAPS Marker

“…In recent years, there has been an increasing interest in the breeding of dwarf types of HS suitable for indoor cultivation in Korea. A variety of methods has been used to develop these cultivars, such as the induction of mutations by irradiation (e.g., ‘Dasom’, ‘Ggoma’, ‘Kids Purple’, and ‘Kids White’), intraspecific crossing with dwarf materials (e.g., ‘Saehanseo’ and ‘Red Bohanjae’), and graft-induced phenotypic variation (e.g., ‘Andong’) [ 6 , 7 , 8 , 9 , 10 , 11 , 12 ].…”