2. Material and Methods
We conducted two experiments in Hong Kong over 2020 to 2021, each subjected to different treatment methods (seed coating and surface soil). The procedure is described in detail in the sections below, where we define the study site in Section 2.1, identify the species collection method in Section 2.2, describe the experimental designs of seed coating treatment and surface soil treatment, respectively in Section 2.3, and describe the data analysis methods to evaluate the effectiveness of treatment measures and species characteristics on seed germination success in Section 2.4.