PINE PLUS TREE SELECTION (PINUS MERKUSII JUNGH. & DE VRIESE) WITH SCORING SYSTEM BY COMPARING AVERAGE TREE (SSCAT) METHOD IN PROPELAT AREAL, OBSERVATORIUM BOSSCHA, LEMBANG, WEST BANDUNG REGENCY.

• Main Author: Irfan Indriyan , Muhammad
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/29262
• Institution: Institut Teknologi Bandung

Bosscha observatory ground is inhabited by pinus trees (Pinus merkusii. Jungh & De <br /> <br /> Vriese) age 35 years and above. Pinus tree is one of sap producer that has various uses for <br /> <br /> example gondorukem and terpentin. Rich sap-producing tree is obviously sought after by <br /> <br /> consuments. Production rate of pine resin is influenced by genetic factors and its growing <br /> <br /> habitat. This study aims to select high yielder pinus plus tree candidate as seed source. <br /> <br /> Research is conducted in Propelat area owned by Bosscha Observatory, Lembang, West <br /> <br /> Bandung Regency in May to August 2017. The tree evaluation method is using Scoring <br /> <br /> System by Comparing Average Tree (SSCAT) which is comparing plus tree candidate <br /> <br /> (CPP) by its seven morphological characters including total height, trunk diameter, resin <br /> <br /> production rate, stem straightness, stem cylindricity, health, fruiting capability, and <br /> <br /> branching. This research concluded 70 CPP whose location is unevenly distributed. Those <br /> <br /> 70 CPP has a range of sap production between 1.18 to 14.32 gram/month. Tree diameter <br /> <br /> ranged from 35.36 to 65.61 cm and tree height from 16 to 27 meters. After evaluating <br /> <br /> average value of diameter, total height, and sap productivity then 33 plus trees (PP) are <br /> <br /> selected. In selected plus trees then obtained sap productivity number from 9.12 to 14.31 <br /> <br /> gram/month then trees diameter from 45.86 to 65.61 cm, and total height from 22 to 27 <br /> <br /> meter.