A New Spray Quysanthemum Cultivar, 'Orange Memoiy' with Resistant to White Rust, Orange Color and Semi-Double Type for Cut Flower

摘要

A new spray chrysanthemum cultivar, 'Orange Memory' was released by National Horticultural Research Institute (NHRI), Rural Development Administration (RDA), in 2006. The cross was made in 2003 between '02B1-525', a breeding line of NHRI and '02B1-493', a breeding line of NHRI. After evaluation for the characteristics including shading culture in summer and retarding culture in spring and consecutive selection from 2002 to 2005, final selection was made. The natural flowering time of "Orange Memory"is Early November, but year-round flowering is possible by shading and illumination. It has semi-double type flowers with orange color and shows resistant to white rust and vigorous growth. The diameter of flower is 5.3 cm. The number of flowers per stemis 13.5 and number of petals per flower is 59.0. The days to flower under short day treatment is about 64 and its vase life is 20 days in autumn season.