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All Journal Peronema Forestry Science Journal Repong Damar: Jurnal Pengabdian Kehutanan dan Lingkungan
Muhdi Muhdi
Fakultas Kehutanan, Universitas Sumatera Utara, , Kampus 2 USU Bekala, Simalingkar A, Pancur Batu, Deli Serdang, Provinsi Sumatera Utara, Indonesia 20353
Agriculture, Biological Sciences & Forestry Environmental Science

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Journal : Peronema Forestry Science Journal

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Increasing Oleoresin (Pinus merkusii) Productivity with Physical Treatment Modification and Time of Tapping in Riil Method Wilna Fikriyah Hasibuan; Ridwanti batubara; Muhdi Muhdi
Peronema Forestry Science Journal Vol 3, No 1 (2014): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (371.592 KB)

Abstract

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 will has higher economic value. The purpose of this research were to knowing the influence between time of tapping with physical treatment modification in riil method of oleoresin 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 and 30 times hitting were not different. The highest amount of oleoresin productivity were from 10 times hitting (1,428 kg/tree/year) 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 different. The times of tapping 3 days at once has a significant influence and it was the best times of tapping for increasing oleoresin productivity.Key words : Pinus merkusii , resin, riil method, times of tapping
(The Application of H2SO4 As Stimulant To Increase The Productivity of Oleoresin (Pinus merkusii Jungh et de Vriese) With Riil Method Ayu Rahayu Effendi Surbakti; Ridwanti Batubara; Muhdi Muhdi
Peronema Forestry Science Journal Vol 3, No 1 (2014): Peronema Forestry Science Journal
Publisher : Program studi Kehutanan USU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (409.061 KB)

Abstract

The Production of oleoresin is affected by the application of stimulant and time of tapping. The purpose of this research were to know the effect of H2SO4 stimulant and the time of tapping to P. merkusii and to know the H2SO4 concentration and the best time of pine tapping that gave the best of tapping. This research were carried at working area of PT. Inhutani IV, Siborong-borong in Mei – June 2013 using factorial randomized block design with two factors, i.e. the concentration of stimulant (0%, 10%, 20% and 30%) and time of tapping (3, 5 and 7 days at once). Parameter measured were production of oleoresin (gram). Result of this research showed that the application of H2SO4 stimulant on the tapping of pine trees increase considerably to oleoresin. The application of H2SO4 resulted in more than 2 – 4 times the yield of oleoresin from tree without stimulant. The concentration of H2SO4 (30%) and the time of tapping in 3 days can gave the best product of oleoresin.Key word : P. merkusii, resin, stimulant, tapping.
Co-Authors Anita Zaitunah Ayu Rahayu Effendi Surbakti Bejo Slamet Iwan RISNASARI Novita Anggraini O K Hasnanda Syahputra Oding Affandi Purwoko, Agus Rahmawaty Rahmawaty Ridwanti Batubara Samsuri, Samsuri Siti Latifah Wilna Fikriyah Hasibuan