The genus Hedychium is increasingly popular as ornamentals because of its attractive foliage, diverse and showy flowers and sweet fragrance. In recent years, the usage of Hedychium has been developed. At the same time, it is encountering some problems, for example, diseases, short vase life of cut flowers and they grow too tall, easily reaching two meters. Conventional breeding remains a difficult endeavor because of high sterility. The application of biotechnological techniques, such as genetic engineering, in vitro mutation breeding and protoplast fusion, may overcome these limitations and achieve the purpose of improving germplasm. A number of biotechnological tools have been developed, including plant tissue culture, somatic embryogenesis and in vitro mutation breeding, which could help breeders with developing new Hedychium cultivars to meet the demands for the Hedychium production and markets. Recent developments in biotechnological research on Hedychium and the future of Hedychium biotechnology are outlined.
Journal of Guangdong Education Institute