Adaptability analysis of Australian plants cultivated in Xishuangbanna of Yunnan Province.
Based on the analyses of fruit maturation and survival rate, the adaptability of plants introduced from Australia was investigated in Xishuangbanna Tropical Botanical Garden (XTBG) in Yunnan Province, China. The results showed that the adaptability of introduced plants is poor in general, and the total survival rate and fruit maturation rate of 557 introduced plants are 5.0 and 3.6%, respectively. The floristic region, climatic zone, plant taxon, introduction way and introduction time all have some influences on the adaptability of introduced plants, in which the similarity of climatic zones and the affinity relationship of floristic regions of the origin place and the cultivation area are the major factors. And the adaptability of indirectly introduced plants is better than that of directly introduced plants. Therefore, the plants introduced from regions with similar climate and related floristic region can survive more easily.