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All Journal Jurnal Agrista Jurnal Ilmu-Ilmu Pertanian Indonesia PERTANIAN TROPIK
Muhdi
Universitas Sumatera Utara
Agriculture, Biological Sciences & Forestry

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Desain Primer Spesifik untuk Gen yang Berperan pada Biosintesis Beta Karoten Kelapa Sawit Lollie A.P. Putri; Muhdi Muhdi; Meiriani Meiriani; Diana S
Jurnal Agrista Vol 11, No 2 (2007): Volume 11 Nomor 2 Agustus 2007
Publisher : Fakultas Pertanian, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (749.379 KB)

Abstract

Design in Specific Primer for Gen Controlling Beta Carotene Biosynthesis of Oil Palm ABSTRACT. The research towards increasing palm oil quality has received a great priority in compliance with high attentions for consumers to health and economic value of vegetable oil. The objective of experiment is to obtain specific primer and generate partial fragment gene having a role of increment in beta carotene biosynthesis of oil palm. Application of biomolecular technique in plant genetic engineering is believed to be able to accelerate the genetic gain. An effort to manipulate of carotene composition is basically modification in its biosynthetic enzymatic pathway. The approach primer designing PRIMER3 software was able to generate couple of primer Beta-F and Beta-R and produce fragment  of lycopene β-cyclase (578 bp). Success in construction of complete functional gene will be a base of creating oil palm varieties with improved palm oil quality in future.
DAMPAK PEMANENAN KAYU BERDAMPAK RENDAH TERHADAP KERUSAKAN TEGAKAN TINGGAL DI HUTAN ALAM (Studi Kasus di Areal HPH PT. Suka Jaya Makmur, Kalimantan Barat) Muhdi Muhdi; Diana Sofia Hanafiah
Jurnal Ilmu-Ilmu Pertanian Indonesia Vol 9, No 1 (2007)
Publisher : Program Studi Ilmu Tanah Fakultas Pertanian UNIB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/jipi.9.1.32-39

Abstract

The objective of the study was to know the degree of residual stand damages caused by conventional timber harvesting and reduced impact logging in natural forest. The study showed that degree of residual stand damages based on tree population in conventional timber harvesting and reduced impact logging was 33.15% and 19.53% respectively. Based on the size injury of every individual tree, the degree of the trees  damages caused by timber harvesting in conventional timber harvesting and reduced impact logging  is as follow : trees heavy injury was 64.66% and 57.20%, trees medium injury was 20.30% and 24.00% and trees light injury was 15.03% and 18.80% respectively. These research results indicate that conventional timber harvesting in the tropical natural forest caused heavier damage on residual stand when compared with a reduced impact logging.
ANALISIS FINANSIAL PEMANENAN KAYU TEKNIK REDUCED IMPACT LOGGING MELALUI SKEMA REDD+, KALIMANTAN UTARA Muhdi; Juang Rata Matangaran
Jurnal Pertanian Tropik Vol. 2 No. 1 (2015): JURNAL PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (212.295 KB) | DOI: 10.32734/jpt.v2i1.2872

Abstract

The research was done at a natural tropical forest of PT Inhutani II, East Kalimantan. The objectivesof the research were to study the carbon (C) stock in the natural tropical forest after conventional andreduced impact logging (RIL) and to get the effectivity of RIL based on carbon stock, financial andenvironmental aspects. The effect of conventional and RIL on the environment and carbon stock in theplots was studied using the data of three plots with each size 100 m x 100 m. The plots are placedbased on purposive sampling at landing, main skid trail, and branch skid trails, respectively. Cstocks are counted by allometric equations and C economics by the economic acceptance of REDD.Economic value of RIL was IDR 1,604,518,900,- ha-1. Based on financial analysis showed that RILwas feasible and profitable at a rate of interest 16 %.
Co-Authors Andreas Hutasoit Dedy S Silaban Diana S Diana Sofia Hanafiah Eva Sartini Bayu Guswinda N Sitanggang Iwan RISNASARI Juang R Matangaran Juang Rata Matangaran Lollie A.P. Putri Meiriani Meiriani