Number of Trunk Estimation in Sago Palm Plantation

Abstract

Sago palm is the highest carbohydrate producer. The carbohydrate is taken from its trunk, so how many carbohydrate can be harvested depend on its trunk condition. The objective of this investigation was want to know the proper method for estimating the number of trunk in sago plantation. This investigation was carried out from February until .July 2009 at sago plantation belonging to PT. National Timber and Forest Product in Meranti Distric, Riau, Indonesia. Four methods were used to estimate number of sago palm trunk. The methods were diagonal system (north-west corner, middle, south-east corner), diagonal system (north-east corner, middle. south-west corner), randomize six rows and six plots in a block. The result indicated that all methods were not significantly different to estimate the number of trunk of sago palm and 1,2 % of total area was enough to estimate sago palm trunk at sago palm plantation, especially in Meranti Distric.