A SURVEY OF THE INTRODUCTION OF ZINGIBERACEOUS PLANTS
姜科植物的引种

Zingiberaceous plants including 135 species, 3 varieties and 3 forms in 23 genera have been introduced from home and abroad to the South China Botanical Garden at Guangzhou for more than two decades. Of all the plants introduced, 103 species with 2 varieties and 2 forms in 18 genera can grow well. Siliquamomum tonkinense Baill. and Etlingera yunnanensis (T. L. Wu et Senjen) R. M. Smith, which are of rare and endangered species, are in ex situ conservation in the Garden. Of all the introduced species, the survival rate is 74.5%, and the percentages of species which can flower and fruit are 56.3% and 33.8%, respectively. From the 8 important genera, the survival rate is 100% in species of Costus and Curcuma, but species of Cautleya and Roscoea fail to survive. The survival rate in both Alpinia and Kaemferia species is 83.3%, and survival rates in species of Hedychium and Zingiber are 57.1% and 85.7%, respectively. The factors, such as climatic, soil, geographical and biological factors, which affect the introduced plants are elucidated.