Somatic Embryogenic Potential Determined by the Morphological Polarity of the Explant in Tissue Cultures of Freesia refracta Organ-specific and Time-course Expression of ACC Synthase Gene FhACS1 in Freesia Flowers Main Anthocyanin Profiles in Petals of Freesia hybrida Endogenous Hormone Contents of Cut Freesia Flowers during Vase Holding Volatile Compounds in the Flowers of Freesia Parental Species and Hybrids Studies on Physiological Characteristics of Cut Freesia Flowers During Vase Holding Studies on Physiological Characteristics of Cut Freesia Flowers During Vase Holding Organ-specific and Time-course Expression of ACC Synthase Gene FhACS1 in Freesia Flowers The Component and Stability of Anthocyanidins in Petals of Freesia refracta Cultivars A New Cultivar of Freesia × hybrida‘Shangnong Hongtaige’ A New Cultivar of Freesia × hybrida‘Shangnong Hongtaige’ ISSR Analysis of Genetic Diversity in Freesia refracta Germplasm Optimization for ISSR-PCR System of Freesia refracta Klatt Through Orthogonal Design