Breeding of Spray Rose Cultivar ‘Pink Shine’ with Pink Color and Longer Vase Life

In 2017 ‘Pink Shine’, a light pink spray rose cultivar,’ was bred by the National Institute of Horticulture & Herbal Science for the purposes of higher yield and longer vase l ife. This cultivar was developed by crossing ‘Fire Flash’, a reddish bicolor spray, with ‘Pink Charm’, a pink-colored spray cultivar resistant to powdery mildew. The crossing was performed in 2012 in anticipation of the pink colored spray and strong growth characteristics. Seeds were sown in January 2013, and planted in 9 cm pots. After the sensory evaluation, 39 seedlings were selected for the first selection group. Considering the flower shape, color, the number of petals, yield, and disease resistance, five lines were selected until 2015. Eventually, the ‘Wonkyo D1-325’ line was selected, and named ‘Pink Shine’ in 2017 through the first, second, and third characteristic tests for the 3 years from 2015 to 2017. An application for plant variety protection was registered on June 21, 2019 (No. 7786). The flower color of ‘Pink Shine’ is light pink (RHS, R36D), and the leaf color is green (RHS, G137A). The number of petals, the width of the flower, and the height of the flower were 67.8 cm, 5.4 cm, and 3.2 cm, respectively, which were all higher than ‘Missha’. The annual yield of the cut flower of ‘Pink Shine’ was 131 stems/m2 per year, and the vase life was superior to ‘Missha’.