A PRELIMINARY STUDY OF THE POLLINATION BIOLOGY OF ALPINIA OXYPHYLLA Studies on chemical constituents in fruit of Alpinia oxyphylla Research on Benefits of Three Agroforestry Systems in Jianfengling,Hainan Island Chemical Constituents in Volatile Oil from Fruits of Alpinia oxyphylla Miq. Studies on the Hybrid Breeding of Zingiberaceous Plants (Alpinia oxyphylla × A. henryi)