Relationship Between Tree Height-Diameter at Breast Height (DBH) and Crown Diameter-DBH of Fruit Trees in Bogor Botanical Gardens

¹ Research Center for Plant Conservation, Botanic Gardens, and Forestry, National Research and Innovation Agency (BRIN), Jl. Ir. H. Juanda No 13 Bogor, West Java, Indonesia
² Bachelor Degree Program, Agrotechnology Department, Faculty of Agricultural, Universitas Padjadjaran, Jalan Raya BandungSumedang km 21, Sumedang, West Java, Indonesia

^* Corresponding author: indriani.ekasari@brin.go.id;
rifaangga20001@mail.unpad.ac.id

Abstract

Ex-situ conservation of Bogor Botanical Gardens (BBG) represents a collection of predominantly Indonesian species and constitutes an exceptional tropical garden. The gardens’ living collections, which include fruit trees, were mostly native to the forest and uncultivated, preserving their original characteristics. The study’s aim was to examine the relationship between tree height and breast height diameter and breast height diameter and canopy diameter of fruit trees at BBG. Three individuals from each of the fifteen selected fruit species were measured for their diameter breast height (DBH), crown diameter, and tree height. The highest mean of all parameters was for Durio zibethinus, while the lowest mean of all parameters was for Garcinia mangostana. Mostly fruit tree species have a positive and strong correlation. The highest and the lowest relationship between tree height and DBH was for C. burmanii (R²=99.88%) and for C. nucifera (R²=1.21%). The highest and the lowest relationship between crown diameter and DBH was for C. burmanii with linear regression (R²=99.94%) and for A. catechu with logarithmic regression (R²=24.06%). There was a positive relationship between DBH and tree height and between crown diameter and DBH for the growth prediction of fifteen fruit trees in BBG.