Growth and survival rate of Rhizophora apiculata propagules replanting by using riley encasement method (REM) at Kampung Pengkalan Gelap, Setiu, Terengganu

Abstract

This study is about replanting of Rhizophora apicu/ata propagules by using two different planting methods which are conventional method and Riley Encasement Method (REM). Conventional method is a method which propagule is directly planted into the soil without any encasement while REM is a method of propagules planted within encasement to help the propagule to survive. The objectives of this project are to study and compare the survival and initial growth rate (plumule height and average number of leaves) of R.apiculata propagules based on the two methods. Based on the result, there is significant difference between both methods in initial growth of plumule height and average number of leaves. There are also weaker correlations between the plumule height and average number of leaves with physical parameter. Besides that, there are also high survival rate of propagules in REM compared to conventional method. In conclusion, by using REM in propagules replanting will help in survival of the propagules besides increased the growth rate compared to using conventional method. It is also suggested that, there should be longer period on study the planting method of propagules in conventional and REM in order to observe the growth rate. Besides that, further study should be done in other species of mangroves to be applied in REM. This will then help in reforestation of mangroves.