Pengaruh Jangka Waktu Pelukaan dengan Modifikasi Perlakuan Fisik pada Metode Riil terhadap Produktivitas Getah Pinus (Pinus merkusii) (Studi Kasus di Areal PT Inhutani IV Unit Sumatera Utara Aceh, Siborong-borong, Tapanuli Utara)

Abstract

Wilna Fikriyah Hasibuan : The influence between time of tapping with modification physical treatment in riil technique of oleo resin productivity (Pinus merkusii). Supervised by Ridwanti Batu Bara and Muhdi. Pinus merkusii is one of endemic in North Sumatera, especially in the north. Pine has a very impotant role, whereas beside as a pioneer plant, pine also produces resin which if we process it more, it wil has higher economic value. The purpose of this research were for knowing the influence between time of tapping with modification physical treatment in riil technique of oleo resin productivity. In this research, the physical treatment used were by hitting ( without hitting, 10,20, and 30 times hitting). The result of this research showed that 10 times hitting were different than 20 and 30 times hitting, while 20 times hitting and 30 times hitting were not much different. The highest amount of oleo resin productivity were from 10 times hitting (121 gr/tree) which showed that physical treatment of 10 times hitting were better than 20 and 30 times hitting. The times of tapping 3 days at once was very different with the times of tapping 5 and 7 days at once, while the times of tapping 5 and 7 days at once were not much different. The times of tapping 3 days at once has a significant influence and it was the best times of tapping for increasing oleo resin productivity.