Archives

  • Indonesian Journal of Oil Palm Research
    Vol. 28 No. 1 (2020)

    Indonesian Journal of Oil Palm Research Volume 28 Number 1 Year 2020 is published by presenting articles, Distribution of vascular bundles and physical properties analysis of variety DxP oil palm trunk based on various zones and trunk heights, Validation of zeatin analysis method using ultra high performance liquid chromatography (UHPLC) technique on oil palm (Elaeis guineensis Jacq.) In vitro culture study, The effect of exposure time of plant growth regulator to abnormality rate of oil palm clones, Characteristics of CO2 emission on peatland under oil palm trees, and Application of cow manure to improve soil chemical characteristics and promote vegetative growth of oil palm (Elaeis guineensis Jacq.) seedling on sub soil media.

  • Jurnal Penelitian Kelapa Sawit; JPKS; IOPRI Indonesian Journal of Oil Palm Research
    Vol. 27 No. 3 (2019)

    Indonesian Journal of Oil Palm Research Volume 27 Number 3 Year 2019 is published by presenting articles: The Effectiveness of Fluroksipir MHE 480 g/l Herbicides as Controlling Chromolaena odorata (L.) Weeds On Mature Oil Palm; Evaluation for Compact Character of Third Cycle Progeny Test in IOPRI’s Oil Palm Breeding Program; Analysis of the Influencing Factors of  the Indonesian Palm Kernel Oil Trade Performance in Main Importer Countries; Insect Biodiversity in Oil Palm Ecosystem which Exposed Long-Term Insecticides Application; and Simulation and Analysis of Water Management System in Tidal Swamp Land: The Initial Study of Oil Palm Plantation in South Kalimantan.

  • Indonesian Journal of Oil Palm Research
    Vol. 27 No. 2 (2019)

    Indonesian Journal of Oil Palm Research Volume 27 Number 2 Year 2019 is published by presenting articles: The growth of oil palm with oil palm midrib organic fertilizer and humic acid; Application of palm kernel oil based Cocoa Butter Substitute (CBS) in formulation of insant coffee, chocolate and mix drinks; Characteristics of flower and fruit development of 35 Angola accessions of Indonesian Oil Palm Research Institute’s collection at Adolina Estate of PT Perkebunan Nusantara IV; Economic value of oil palm sap as potentially financing for oil palm smallholders; and Soil fertility and photosythesis rate of oil palm showing white stripe symptoms in peat land in Labuhan Batu.

  • Indonesian Journal of Oil Palm Research
    Vol. 27 No. 1 (2019)

    Indonesian Journal of Oil Palm Research Volume 27 Number 1 Year 2019 is published by presenting articles: Analysis of indonesia's market position in Refined Palm Oil (RPO) market in importer countries; The insecticide effect to the activity and emergence of Elaeidobius kamerunicus Faust (Coleoptera: Curculionidae) on oil palm (Elaeis guineensis Jacq.) male inflorescence; Genetic distance of 47 accessions of oil palm (Elaeis guineensis Jacq.) germplasm from cameroon based on morphological character; Impact of potassium and drought stress on nutrient uptake and production of palm oil (Elaeis gueenensis Jacq.) seedling biomass; and Phenological observation on eight oil palm (Elaeis guineensis Jacq.) varieties using thermal unit concept.

  • Indonesian Journal of Oil Palm Research
    Vol. 26 No. 3 (2018)

    Indonesian Journal of Oil Palm Research Volume 26 Number 3 Year 2018 is published by presenting articles:  Water dynamics and flowering phase that determines oil palm productivity; Potential several weeds as cover crop in mature oil palm plantation; Effect of flubendiamida against nettle caterpillar Setothosea asigna van Eecke, bagworm Metisa plana Walker, bunch moth Tirathaba rufivena Walker of oil palm and it's impact to the activity of pollinator weevil Elaeidobius kamerunicus Faust.; Financial and economic analysis of intercropping (maize and soybean) with immature oil palm ; and The aplication of high constant-temperature oven method and intact seed utilization on determining seed moisture content of oil palm (Elaeis guineensis L. Jacq.)

  • Indonesian Journal of Oil Palm Research
    Vol. 26 No. 2 (2018)

    Indonesian Journal of Oil Palm Research Volume 26 Number 2 Year 2018 is published by presenting articles: Utilization of candlenut shell charcoal (Aleurites moluccana (L.) Willd.) as adsorben on refinery of Crude Palm Oil (CPO); Application of an Artificial Neural Network (ANN) model for predicting oil palm Fresh Fruit Bunch (FFB) yield based on rainfall and the previous level of yield; Utilization of endophytic bacteria to improve the oil palm (Elaeis guineensis Jacq.) seedlings growth; Nutrients use efficiency of several types of fertilizers on the oil palm seedling; and Fatty acid and carotene composition in Elaeis oleifera, interspecific hybrid, and the first pseudo-backcross in North Sumatra, Indonesia.

  • Indonesian Journal of Oil Palm Research
    Vol. 26 No. 1 (2018)

    Indonesian Journal of Oil Palm Research Volume 26 Number 1 Year 2018 is published by presenting articles, Increasing of red palm oil preferences with addition of vegetable oil or flavour and its stability in repeated frying, The growth of oil palm seedling with different plant media and watering Interval, Vegetative and bunch components of first pseudo-backcross of Elaeis Oleifera Brazil and Suriname origin in North Sumatra, Indonesia, Weed management with mixed herbicides (ammonium gluficinate 150 g/ l and methyl metsulfuron 5 g / l) on oil palm TBM, Leaching of N, P, K, and mg from application of briquette compound fertilizer, granular compound fertilizer, and single fertilizer.

  • Indonesian Journal of Oil Palm Research
    Vol. 25 No. 3 (2017)

    Indonesian Journal of Oil Palm Research Volume 25 Number 3 Year 2017 is published by presenting articles, Modelling of monthly oil palm yield pattern based on depth of rainfall and rainy days, Drought and haze effects on oil palm ecophysiology and productivity in South Sumatra, Impacts of water table and soil ameliorant on soil moisture, CO2 emission, and oil palm yield on peat soil, Application of oil palm empty fruit bunch fibers in strength improvement as a fiber reinforced concrete, Smallholders' and cooperatives' readiness analysis in oil palm smallhoders' plantation replanting program (Case Study of Farmers in Ophir, West Pasaman Regency, West Sumatra Province).

  • Indonesian Journal of Oil Palm Research
    Vol. 25 No. 2 (2017)

    Indonesian Journal of Oil Palm Research Volume 25 Number 2 Year 2017 is published by presenting articles, Characterization of oil during fruit ripening of oil palm (Elaeis guineensis Jacq) variety DxP Simalungun, Assesment of water table model on oil palm area in a hilly land, Analysis of macronutriens contents in soil with Near Infra Red (NIR) spectroscopy, Optimization of technical analysis in the palm oil marketing strategy: daily pricing model for 30 days transaction, Export competitiveness of Indonesia's palm oil.

  • Indonesian Journal of Oil Palm Research
    Vol. 25 No. 1 (2017)

    Indonesian Journal of Oil Palm Research Volume 25 Number 1 Year 2017 is published by presenting articles Genetic variability in fatty acid and beta carotene content of 24 accessions Cameroon germplasm of IOPRI collection, Genetic map construction of IOPRI's oil palm (Elaeis guineensis Jacq.) mapping population derived from SP540T by using Restriction site Associated DNA (RAD) markers, Legitimacy of Progenies using SSR Markers as Controlling System and Earlier Selection in the Oil Palm Nursery (Elaeis guineensis Jacq.), Production of oil palm sex inflorescense and its response on the treatment of plant exogenous hormone treatment under drought condition, The effectiveness of fungicides against fungal isolates carried by oil palm seeds.

  • Indonesian Journal of Oil Palm Research
    Vol. 24 No. 3 (2016)

    Indonesian Journal of Oil Palm Research Volume 24 No. 3 of 2016 is published by presenting articles Genetic traceability of oil palm progenies (Elaeis guineensis Jacq.) using simple sequence repeat (SSR), The role of NAA, GA3, activated charcoal, and sucrose on zygotic embryos culture of Hybrid OG open pollinated clone (Elaeis guineensis Jacq. X Elaeis Oleifera), Characterization of gene β Ketoacyl-ACP Synthase II (KAS II) on Elaeis guineensis, Elaeis oleifera, and interspecific hybrid, Worldview-2 imagery vegetation index calculation for oil palm yield estimation, and Retention of carotene and retinyl palmitate in palm cooking oil and the products fried in the oil.

  • Indonesian Journal of Oil Palm Research
    Vol. 24 No. 2 (2016)
    Indonesian Journal of Oil Palm Research Volume 24 Number 2 Year 2016 is published by presenting articles Suspected symptoms of deep-seated depression and homozygosity levels of self-pollinated palm oil population generation 4 SP540T and 5th generation Dura Deli, (Elaeis guineensis Jacq.) of eight varieties of PPKS, Optimization of DNA extraction protocol Elaeidobius kamerunicus, Relation of rainfall patterns and oil palm plant performance on Sumatra Island and Kalimantan during El Niño 2015, Development of utilization of avocado seed extract (Persea americana Mill .) to decrease the content of free fatty acids (ALB) in crude palm oil.
  • Indonesian Journal of Oil Palm Research
    Vol. 24 No. 1 (2016)

    Indonesian Journal of Oil Palm Research Volume 24 Number 1 Year 2016 is published by presenting articles Fatty acid compositions and IOD oil numbers from nine varieties of commercial palm oil DxP in PPKS, genetic diversity of E. oleifera population and population E. guineensis x E. oleifera in germplasm collection PPKS, Distribution of oil palm plantation and soil physical properties on planting hole size and different palm empty fruit bunch application, Improved properties and prevention of peat soil hydrophobicity in oil palm plantations through application of slag, Progression of Elaeidobius kamerunicus faust post-introduction and increased fruit set of set of oil palm in Seram Island, Maluku, Indonesia.