A new Phalaenopsis cultivar SM 3337 was bred by Sangmiwon, Korea. The new cultivar SM 3337, with a pink color and striped characteristics, was derived by artificial crossing between Phal. Minho Princess (the female parent) and Phal. Minho Stripes (the male parent). From 2006 to 2007, 300 individuals were cultivated over 2 years. Among them, an elite individual, number ‘05-33-37’, with excellent growth and flowering characteristics was finally selected through an intensive selection process. The stability and uniformity of the cultivar were confirmed through the first and second characteristics tests in 2008 and 2009, and it was named ‘SM 3337’. SM 3337 produces bright clean pink (RHS#69C) flowers with incurved shape and striped characteristics, with a flower length and width of 9.8 cm and 10.8 cm, respectively. SM 3337 is regarded as a lightly striped flower type and is suitable for the new flowerpot market. The leaves of SM 3337 are arranged horizontally and are 22.2 cm in length and 10.7 cm in width. This cultivar also possesses no genetic variation, fast in vitro propagation, and easy growing due to vigorous growth habit. SM 3337 was registered to Korea Seed & Variety Service (KSVS) in September 30, 2013 and the plant breeder’s right (PBR) is currently controlled by Sangmiwon Orchid Company, Korea (Registration No. 4640).

This study was conducted to breed interspecific hybrids by crossing between Asiatic hybrids for the purpose of cut flower or pot plant. According to results of reciprocal crossing between L. davidii and ‘Conception’, flower color of F1 appears nearer to that of each male parent but they seemed to be influenced by L. davidii which has side-facing flower position. The characteristic traits of F1 hybrids obtained from the cross between ‘Tresor’ and ‘Black Out’ is related to female parent ‘Tresor’. Whereas in a cross between ‘Navidad’ and ‘Hironde’, a progeny 122611-4 has the petal spot characteristic similar to the female Asiatic hybrid ‘Navidad’ and male parent ‘Gironde’ influence on the petal color. F1 hybrid cross ‘Gironde × Red Sensation’ showed parental flower color expression contribution. In addition ‘Gironde’ as parent contributed extensively in imparting flower color in the resulting hybrids. In the above statements, F1 progenies were more than 40cm in height and the plant height of their parents was over 70cm. Therefore, it is considered that their F1 progenies are not short if parents have a long plant height. In ‘Kotnali × Tiny Bee’ progenies, 112061-1 progeny expressed orange flower color similar to female while 112061-2 showed yellow flower color same as male. Plant height was 27.7cm and 22.4cm close to 35.0cm of male parent ‘Tiny Bee’. F1 hybrid of ‘Matrix × Holebibi’ expressed three flower color all of parents. It was dwarf and distinguishable as compared to parental phenotype. Therefore, it is concluded that for potted lily flower development carrying dwarf plant height and intermediate morphological traits Asiatic hybrids plays an important role such as ‘Tiny Bee’ and ‘Matrix’.