The Manglid (Manglietia glauca Bl) Growth Variations at Age of 42 Months in Candiroto Temanggung Central Java

Abstract

Manglid (Manglietia glauca Bl) is an indigenous tree species in the Indonesian forest whose existence began to be difficult to find. Wood is the part of the plant that can be used. The development of this plant which is the local genetic resources need to be done with the breeding program. In connection with this, the determination of the plant growth is necessary in order to obtain information of manglid ability in producing wood. The purpose of this research was to determine the growth variation of the manglid plants that planted at the Candiroto with an altitude between 457-464 meters above sea level, Candiroto District, Temanggung Regency, Central Java at the age of 42 months. The research method used was a Randomized Complete Block Design with the seedlings propagated from 100 parent trees, separated into 10 blocks, each block consisted of 4 tree plots, and the planting distance was 4 m x 3 m. The characteristics of plant measured were the height of the plant, stem diameter, and life percentage of manglid. The measurement results were analyzed for the variation and tested by employing a Duncan Multiple Range Test. The results showed that the height of plants was ranged between 106-1083 cm with an average of 577 cm. The stem diameter was ranged between 1,3-28,7cm with an average of 9,4 cm. The life percentage of plants was ranged between 17,5-80,0% with an average of 51,3%. The analysis results showed that the parent tree has significant effects on the total height and the stem diameter of plants. There were some variations of height characteristic from 100 parent trees, there were 23 groups, while for the stem diameter characteristic, there were 11 groups.