A new Phalaenopsis cultivar Hwasu 3551 was bred by Kyungpook National University, Korea, which produces young plants through tissue culture techniques. The new cultivar Hwasu 3551, showing the phenotype of pink colored large stripe type characteristics, was derived from crossing between Phalaenopsis Minho Princess and Minho Stripes. An elite individual number '03-35-51' later coined as 'Hwasu 3551' was selected among about 300 individual progenies for more than 2 years intensive selection process covering vegetative and flowering distinctiveness. In year 2006-2007, the 1st and 2nd characteristic analysis were carried out through performance and uniformity test. The Hwasu 3551 shows that flower color is bright clean pink (RHS#RP69D) and flower shape is formal type with size of 7.4 and 8.8cm in flower length and width, respectively. Hwasu 3551 is regarded as raceme flower type suitable large flower pot market. The leaf of Hwasu 3551 is rowing horizontally and about 22.3cm in length and 9.4cm in width, respectively. This cultivar also possesses no genetic variation, fast invitro propagation and easy growing due to vigorous growth habit. This Hwasu 3551 is registered (Reg.#:2917) to Korea Seed & Variety Service (KSVS) in 1st December, 2009 and PBR (plant breeder's right) is currently controlled by Sangmiwon Orchid Company, Korea.

• 임기병(경북대학교 농업과학기술연구소,) | Ki-Byung Lim (Institute of Agricultural Science and Technology, Kyungpook National University, Daegu, Korea)
• 김홍열(경북대학교 농업과학기술연구소,) | Hong Yul Kim (Institute of Agricultural Science and Technology, Kyungpook National University, Daegu, Korea)
• 박노은(상미원,) | No Eun Park (Sangmiwon Orchid, 166-10 Songamri, Teangun, Chungnam 357-903, Korea)
• 손병구(부산대학교 원예생명과학과,) | Beung Gu Son (Department of Horticultural Bioscience, Pusan National University, Miryang 627-706, Korea)
• 안형근(농림축산식품부 과학기술정책과) | Hyung-gun Ahn (Science & Technology Policy Division, Ministry of Agriculture, Food and Rural Affairs, Sejong-si 30110, Korea) Corresponding author