Horticultural Science and Technology ISSN:1226-8763(Print) 2465-8588(Online) 원예과학기술지

Recently, as the premium market for large flowers has expanded more than that of medium-sized flowers, domestically produced medium-sized roses are disadvantageous in competition with imported large ones grown in major production countries such as Kenya and Ecuador. Therefore, we developed a cultivar suitable for the domestic environment that has large yields. A red standard rose cultivar ‘White Beauty’ was bred from the cross between the white standard cultivar ‘Marilyn Monroe’ and the pink standard cultivar ‘Peach Coat’ with large flowers and excellent stem length at the National Institute of Horticulture & Herbal Science. An individual was obtained from an artificial cross in 2014, and ‘White Beauty’ was finally selected and named in 2016 after investigating the characteristics from 2014 to 2016. ‘White Beauty’ is a standard flower with white color (RHS Color Chart White Group 3C) that grows vigorously, produces a big flower and has high productivity. The number of petals was 65.4, which was much bigger than that of ‘Green Star’ (41.4), and flower width (8.9 cm) was larger than ‘Green Star’ (8.3 cm). The annual amount of cut flowers per square meter was 112 stems, which was 17 more than ‘Green Star’. Vase life was 7.8 days shorter than ‘Green Star’, but consumers preferred ‘White Beauty’ over the control cultivar ‘Green Star’.