Author: mpob_admin

(100 Articles)

RESEARCH ARTICLE
Vol. 37 (3) September 2025, p. 476-491

A COMPREHENSIVE ASSESSMENT OF COMPOSITION AND NUTRIENT CONTENT IN VARIOUS COMMERCIAL FERTILISERS USED IN INDONESIAN OIL PALM PLANTATIONS

SUKARMAN1,2; LILIK SUTIARSO1*; ANDRI PRIMA NUGROHO1; ARDAN WIRATMOKO1; TAKASHI OKAYASU3; SUWARDI1,4; SEPTA PRIMANANDA5; AHMAD HASANUDDIN4 and HERRY WIRIANATA5
DOI: https://doi.org/10.21894/jopr.2024.0043  |   Published Online: 5 September 2024
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RESEARCH ARTICLE
Vol. 37 (3) September 2025, p. 492-505

DELIGNIFICATION METHODS FOR EMPTY FRUIT BUNCH CO-SUBSTRATE IN POME ANAEROBIC DIGESTION: AN EXPERIMENTAL COMPARATIVE ANALYSIS

MUHAMMAD ALPLEX FIRSTONDA KATON2,4; FRENDY RIAN SAPUTRO1; BAMBANG MUHARTO1; ZULAICHA DWI HASTUTI1; ADE SYAFRINALDY1; ALDRIN SANOVA2; MUHAMMAD ILHAM AKBAR2; AGUS KISMANTO1; RINALDI MEDALI RACHMAN2; NURUL AIYSHAH MAZLAN3; AHMAD MUHSIN ITHNIN3 and DHANI AVIANTO SUGENG1*
DOI: https://doi.org/10.21894/jopr.2024.0016  |   Published Online: 14 February 2024
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RESEARCH ARTICLE
Vol. 37 (3) September 2025, p. 506-518

EVALUATING THE EFFECT OF LOW AND HIGH TEMPERATURE MODE OF SUBCRITICAL WATER PRE-TREATED EMPTY FRUIT BUNCHES ON CO-DIGESTION PERFORMANCE AND KINETIC STUDY FOR METHANE PRODUCTION

ADILA FAZLIYANA AILI HAMZAH1; MUHAMMAD HAZWAN HAMZAH1,2*; KHAIRUDIN NURULHUDA1,2; HASFALINA CHE MAN1,2; MUHAMMAD HEIKAL ISMAIL3 and PAU LOKE SHOW4,5,6,7
DOI: https://doi.org/10.21894/jopr.2024.0030  |   Published Online: 8 May 2024
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RESEARCH ARTICLE
Vol. 37 (2) June 2025, p. 274-287

ASSESSING THE PRODUCTIVITY, ECONOMIC AND SUSTAINABILITY IMPACTS OF SHELL DNA TESTING IN INDONESIAN OIL PALM SMALLHOLDINGS IN MUSI BANYUASIN AND PELALAWAN REGENCIES

ISMAIL MASKROMO1; JEANETTE KUMAUNANG1; KRISTIANTO NUGROHO1; A MUIS HASIBUAN2; RERENSTRADIKA TIZAR TERRYANA3; SYAFARUDDIN4; ENGELBERT MANAROINSONG4; MUHAMMAD A BUDIMAN5; ABDUL R PURBA5; NATHAN D LAKEY6; JARED M ORDWAY6 and PUJI LESTARI1*
DOI: https://doi.org/10.21894/jopr.2024.0024  |   Published Online: 22 March 2024
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RESEARCH ARTICLE
Vol. 37 (1) March 2025, p. 53-63

APPLICATION OF SEAWEED EXTRACTS IN OIL PALM (Elaeis guineensis) SEEDLINGS SUBJECTED TO WATER DEFICIT: PHYSIOLOGICAL, BIOCHEMICAL AND ENZYMATIC RESPONSES

MUHAMMAD DANIAL MOKHTARUDDIN1; NUR AIFAA ABD RAZAK1; AISAMUDDIN ARDI ZAINAL ABIDIN1; NOR IZZATI HUSNA NOORHISHAM2; NUR ASNA FAIQAH JOHARI1 and ZETTY NORHANA BALIA YUSOF1,2,3*
DOI: https://doi.org/10.21894/jopr.2023.0066  |   Published Online: 27 December 2023
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RESEARCH ARTICLE
Vol. 37 (2) June 2025, p. 324-337

AN INVESTIGATION OF 30% PALM BIODIESEL BLEND FUEL (B30) UNDER INDONESIAN OPERATING CONDITIONS

IHWAN HARYONO1; R C NUGROHO1; M T SURYANTORO1; HARI SUMARTONO2; SITI YUBAIDAH1; NACEP SURYANA1; BUDI ROCHMANTO1; DEDY INDRIATMONO1; R T SOEWONO1; MUHAMMAD MA’RUF1; K F ADHI SUKRA2; HENRY NOLANDY1; MOKHTAR3; HERU PRIYANTO2; AGUS WAHIDIN1; ADE KURNIAWAN1; VEBRIYANTI HAYOTO2; SUHERMAN MUKTI1; LUKMAN SALAHUDDIN2; P DIAH RIZKY LESTARI4; HARI SETIAPRAJA1* and IMAN K REKSOWARDOJO5,6
DOI: https://doi.org/10.21894/jopr.2024.0013  |   Published Online: 8 February 2024
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RESEARCH ARTICLE
Vol. 37 (2) June 2025, p. 347-358

FORMULATION OF FORTIFIED MEDIA CONSISTING OF OIL PALM EMPTY FRUIT BUNCH BIOCOMPOST AND OIL PALM KERNEL SHELL BIOCHAR FOR THE ENHANCEMENT OF BIOACTIVE COMPOUNDS IN Centella asiatica (L.) URBAN

IZZA NADIRA ABU BAKAR1, MOHAMAD FAIZAL IBRAHIM1,2*, MANSOR HAKIMAN2, MOHD AZWAN JENOL1, NAHRUL HAYAWIN ZAINAL3, SURAINI ABD-AZIZ1, SEHANAT PRASONGSUK4
DOI: https://doi.org/10.21894/jopr.2023.0039  |   Published Online: 25 August 2023
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RESEARCH ARTICLE
Vol. 36 (4) December 2024, p. p. 586-597

BIOLOGY AND BEHAVIOUR OF Elaeidobius kamerunicus FAUST, 1898 (COLEOPTERA: CURCULIONIDAE) IN TWO OIL PALM CULTIVARS IN COLOMBIA

CARLOS ANDRÉS SENDOYA-CORRALES1*; NORMAN FABIAN URREGO-MORALES2; JESÚS DAVID CASTAÑO-MARTINEZ3; ALEX ENRIQUE BUSTILLO4 and ANUAR MORALES RODRÍGUEZ4
DOI: https://doi.org/10.21894/jopr.2023.0048  |   Published Online: 25 September 2023
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RESEARCH ARTICLE
Vol. 36 (3) September 2024, p. 393-408

BIOLOGY AND POPULATION DYNAMICS OF ADULT Sagalassa valida WALKER, 1856 (Lepidoptera: Brachodidae), THE OIL PALM ROOT BORER IN COLOMBIA

CARLOS ANDRÉS SENDOYA-CORRALES1; JOSÉ LUIS PASTRANA-SANCHEZ2*; JESÚS ARVEY MATABANCHOY SOLARTE3; ÁLEX ENRIQUE BUSTILLO PARDEY2; MIRIAM ROSERO GUERRERO2 and ANUAR MORALES RODRÍGUEZ2
DOI: https://doi.org/10.21894/jopr.2023.0034  |   Published Online: 8 August 2023
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RESEARCH ARTICLE
Vol. 36 (3) September 2024, p. 432-444

IDENTIFICATION OF THE OIL PALM BAGWORM, Mahasena corbetti TAMS (LEPIDOPTERA: PSYCHIDAE) VIA MOLECULAR TECHNIQUES AND ITS BIOCONTROL ASSAY USING Bacillus thuringiensis

MOHD SHAWAL THAKIB MAIDIN1,2*; AMALIA MOHD HASHIM2,3; NOORHAZWANI KAMARUDIN1; SITI NURULHIDAYAH AHMAD1; MOHAMED MAZMIRA MOHD. MASRI1; RAHA ABDUL RAHIM2,4 AND SYARI JAMIAN5
DOI: https://doi.org/10.21894/jopr.2023.0036  |   Published Online: 8 August 2023
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RESEARCH ARTICLE
Vol. 36 (3) September 2024, p. 445-455

EFFECT OF GRAPHITE MICROPARTICLES AS ADDITIVE IN AN INDIRECT DIESEL ENGINE FUELLED WITH PURE PALM OIL

RICO ADITIA PRAHMANA1,2*; PRIHADI SETYO DARMANTO3; IMAN KARTOLAKSONO REKSOWARDOJO3,10; TEUKU MEURAH INDRA RIAYATSYAH2,4; ACHMAD GUS FAHMI5; FIRMAN BAGJA JUANGSA3; TIRTO PRAKOSO6; ABDI HANRA SEBAYANG7,11; MUHAMMAD SYAUKANI2; ZIDO YUWAZAMA8 and WIAGIL TUNKU NASTITI WIDOYOKO9
DOI: https://doi.org/10.21894/jopr.2023.0030  |   Published Online: 18 July 2023
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REVIEW ARTICLE
Vol. 35 (2) June 2023, p. 193-216

OIL PALM ECONOMIC PERFORMANCE IN MALAYSIA AND R&D PROGRESS IN 2022

GHULAM KADIR AHMAD PARVEEZ1 *; OMAR ABD RASID1 ; MOHD NAJIB AHMAD1 ; HUMAIRA MAT TAIB1 ; MOHD AZWAN MOHD BAKRI1 ; SITTI RAHMA ABDUL HAFID1 ; TUAN NOOR MAZNEE TUAN ISMAIL1 ; SOH KHEANG LOH1 ; MEILINA ONG ABDULLAH1 ; KALSOM ZAKARIA1 and ZAINAB IDRIS1
DOI: https://doi.org/10.21894/jopr.2023.0028  |   Published Online: 28 June 2023
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RESEARCH ARTICLE
Vol. 36 (2) June 2024, p. 254-266

NUTRITIONAL COMPOSITION OF ANTHESISING MALE INFLORESCENCE OF OIL PALM Elaeis guineensis ESSENTIAL FOR DEVELOPMENT OF Elaeidobius kamerunicus Faust: FIRST REPORT

MUHAMAD HAZIQ HADIF ZULKEFLI1; SYARI JAMIAN1,2*; SITI IZERA ISMAIL1,2; NUR AZURA ADAM1; JOHARI JALINAS3 and MOHAMED MAZMIRA MOHD MASRI4
DOI: https://doi.org/10.21894/jopr.2023.0027  |   Published Online: 22 June 2023
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RESEARCH ARTICLE
Vol. 36 (2) June 2024, p. 276-287

POME TREATMENT USING AB-101 MICROBIAL CONSORTIUM: PERFORMANCE AND PROPOSED MECHANISM

UMMI KALSUM HASANAH MOHD NADZIM1; NUR HANIS HAYATI HAIROM1,2*; MUHAMMAD ADIB ABIDI1; ADEL ALI SAEED ABDUH ALGHEETI3; DILAELEYANA ABU BAKAR SIDIK4; RAIS HANIZAM MADON1; SOFIAH HAMZAH5,6; ALYZA AZZURA A. RAHMAN AZMI5,6 and ABDUL WAHAB MOHAMMAD7
DOI: https://doi.org/10.21894/jopr.2023.0029  |   Published Online: 18 July 2023
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RESEARCH ARTICLE
Vol. 36 (3) September 2024, p. 524-533

N-ALKANE PROFILES OF LARD AND VEGETABLE OILS, AND THEIR CHEMOMETRICS DIFFERENTIATION

NUR AIN SYAQIRAH SAPIAN1,2; MUHAMAD AIDILFITRI MOHAMAD ROSLAN1,2,3; AMALIA MOHD HASHIM1,4; YANTY NOORZIANNA ABDUL MANAF5; MOHD NASIR MOHD DESA1; MURNI HALIM2; MUHAMAD SHIRWAN ABDULLAH SANI6; MOHD TERMIZI YUSOF4; MOHD SABRI PAK DEK7 and HELMI WASOH1,2*
DOI: https://doi.org/10.21894/jopr.2023.0038  |   Published Online: 22 August 2023
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RESEARCH ARTICLE
Vol. 36 (2) June 2024, p. 322-334

THE EFFECT OF NCO/OH EQUIVALENT WEIGHT RATIOS OF POLYURETHANE (PU) BINDER AND PU BINDER CONTENT ON PROPERTIES OF MEDIUM DENSITY FIBERBOARD (MDF)

MOHD NORHISHAM SATTAR1*; TUAN NOOR MAZNEE TUAN ISMAIL1; KOSHEELA DEVI POO PALAM1; NORHAYATI MOHD NOOR1; NURUL AIN HANZAH1; SRIHANUM ADNAN1; YEONG SHOOT KIAN1; ZAFARIZAL ALDRIN AZIZUL HASAN1 and MANSUR AHMAD2
DOI: https://doi.org/10.21894/jopr.2023.0031  |   Published Online: 31 July 2023
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RESEARCH ARTICLE
Vol. 36 (1) March 2024, p. p. 40-50

INITIAL CHARACTERISATION OF Metarhizium anisopliae CPMa1502 FOR THE DEVELOPMENT OF A BIOPESTICIDE AGAINST THE OIL PALM FRUIT SCRAPER Demotispa neivai (Coleoptera: Chrysomelidae)

GINNA QUIROGA-CUBIDES1*; FELIPE BORRERO-ECHEVERRY2; ANA MARÍA JIMÉNEZ1; LUIS GUILLERMO MONTES-BAZURTO3,4; ALEX BUSTILLO PARDEY3; MARTHA I. GÓMEZ1 and PAOLA E. CUARTAS-OTÁLORA1
DOI: https://doi.org/10.21894/jopr.2022.0076  |   Published Online: 9 December 2022
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RESEARCH ARTICLE
Vol. 35 (4) December 2023, p. 582-595

PHENOTYPIC VARIABILITY OF Elaeis oleifera GERMPLASM REVEALED BY PRINCIPAL COMPONENT AND CLUSTER ANALYSES

ZULKIFLI YAAKUB1*; MARHALIL MARJUNI1; SUZANA MUSTAFFA1; WAN NOR SALMIAH TUN MOHD SALIM1; FATIN MOHD NASIR1; NORZIHA ABDULLAH1; MOHD DIN AMIRUDDIN1; RAJANAIDU NOOKIAH2; AHMAD KUSHAIRI DIN3 and MEILINA ONG-ABDULLAH1
DOI: https://doi.org/10.21894/jopr.2022.0054  |   Published Online: 6 September 2022
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SHORT COMMUNICATION
Vol. 36 (2) June 2024, p. 335-348

ASSESSMENT OF SUBTERRANEAN TERMITE, Coptotermes curvignathus (ISOPTERA: RHINOTERMITIDAE) INFESTATION SEVERITY INDEX (TISI) AND WATER TABLE ON A PEAT OIL PALM PLANTATION IN SARAWAK

MOHAMAD ROSMAN SULAIMAN1 *; SAHARUL ABILLAH MOHAMAD1 ; MOHAMAD IZZUDDIN ANUAR2 ; SITI NURULHIDAYAH AHMAD1 and MOHAMED MAZMIRA MOHD MASRI1
DOI: https://doi.org/10.21894/jopr.2023.0044  |   Published Online: 8 September 2023
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RESEARCH ARTICLE
Vol. 36 (1) March 2024, p. p. 82-93

ARTHROPOD FAUNA OF OIL PALM INFLORESCENCE (Elaeis guineensis), WITH NOTES ON THEIR ECOLOGICAL ROLES IN A PLANTATION IN TERENGGANU, MALAYSIA

MOHAMED NOR ZALIPAH1*; TAN HUI TING1; NURUL IZZAH AZUAN1; MOHD SHUHAIMI MUHAMMAD HAFFIDZIE1; FAIQ ZULFAQAR ZAIRY1; MUHAMAD AZRUL SHAIFUL LIZAM1; ASRAF MOHAMAD IDRUS1,2; SHAHRUL ANUAR MOHD SAH3; NUR FARIZA M. SHAIPULAH1 and NORASMAH BASARI1
DOI: https://doi.org/10.21894/jopr.2023.0013  |   Published Online: 15 March 2023
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by mpob_admin