Selection and Propagation Methods for Ploiarium Alternifolium, An Indigenous Tree Species For Slope Control: Case Study Of Sultan Azlan Shah Campus, Sultan Idris Education University, Malaysia

The area of green corridors encompassing the Sultan Azlan Campus (KSAS), Sultan Idris Education University (UPSI) is about 151km2, approximately 19% of the total campus area. The green corridor is best described as a secondary forest composed of various indigenous tree species with potential erosion control and slope stabilization. This study aims to identify suitable species for erosion control at slope areas. One of the most promising species is Ploiarium alternifolium, which has been selected for this study and was propagated for use in erosion control. Three propagation techniques were applied, i.e., grafting, branch cutting and in-situ harvesting. The results show that grafting and in-situ harvesting were more efficient than branch cutting. Therefore, the use Ploiarium alternifolium in erosion control is a promising method and can be complimented by mechanical engineering methods.