Pertumbuhan dan Biomassa Semai Bakau Minyak (Rhizophora apiculata) pada Berbagai Konsentrasi Salinitas

Abstract

CANDRO YOSUA MANIK. Growth and biomass of bakau minyak seedling (Rhizophora apiculata) under various salinity concentrations, academic supervised by MOHAMMAD BASYUNI and LOLLIE AGUSTINA P. PUTRI. The aim of this study to determine the growth and biomass R. apiculata seedlings at varied concentrations of salinity. This study was conducted at glasshouse, Department of Forestry, Faculty of Agriculture, University of Sumatera Utara, from Agustus 2011 to January 2012. This experiment using five treatments, namely 0%, 0.5%, 1.5%, 2% and 3% salinity, with quintuplicate analysis. The results showed that the growth of R. apiculata seedlings under varied salinity concentrations effected significantly comparing to the control (0%) on seedling height, seedling diameter, number of leaves, leaf area, root dry weight, stem dry weight, dry weight of the canopy. Seedling growth of R. apiculata in the highest growth at 1.5% salinity is 10,5 cm, diameter at 1.5% salinity is 5.0 cm, number of leaves on the salinity of 0.5% is 6, the leaf area on the salinity of 0.5% is 157,8.