A STUDY ON THE CHEMICAL COMPONENTS OF LEAF ESSENTIAL OILS FROM CINNAMOMUM PLATYPHYLLUM COLLECTED IN DIFFERENT SEASONS THE APPLICATION OF SEQUENCE CLUSTER ANALYSIS ON DIVISION OF THE GROWTH STAGE OF SEEDLING HEIGHT FOR CINNAMOMUM PLATYPHYLLUM A STUDY ON THE CHEMICAL COMPONENTS OF THE LEAF ESSENTIAL OIL FROM CINNAMOMUM PLATYPHYLLUM THE HEIGHT GROWTH OF CINNAMOMUM PLATYPHYLLUM SEEDLINGS AND ITS CORRELATIONS WITH ENVIRONMENTAL FACTORS