2020 – Journal of Oil Palm Research

Vol. 32 (1) March 2020, p. 139-144

POTASSIUM NUTRITION IN THE OIL PALM: A MOLECULAR PERSPECTIVE

MOHD NAQIUDDIN*; NYUK LING MA** and MEILINA ONG-ABDULLAH*
DOI: https://doi.org/10.21894/jopr.2019.0029 | Published Online: 4 November 2019
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Vol. 32 (1) March 2020, p. 145-151

ASSESSMENT OF SOCIAL RETURN ON INVESTMENT FROM THE UTILISATION OF OIL PALM’S RESIDUES

WISAKHA PHOOCHINDA*
DOI: https://doi.org/10.21894/jopr.2020.0001 | Published Online: 13 Januari 2020
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Vol. 32 (1) March 2020, p. 152-158

SCREENING OF ORGANOGELATORS FOR STRUCTURING PALM SUPEROLEIN

SAW, M H*; LIM, W H*; YEOH, C B*; BADLISHAH SHAM BAHARIN** and TAN, C P**
DOI: https://doi.org/10.21894/jopr.2020.0002 | Published Online: 17 January 2020
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Vol. 32 (1) March 2020, p. 103-116

ARE CHARACTERISTICS OF SOFT PALM STEARINS SIMILAR TO SOFT PALM MID FRACTIONS?

SIVARUBY KANAGARATNAM*; NOOR LIDA HABI MAT DIAN*; RAFIDAH ABD HAMID*; NUR HAQIM ISMAIL*; WAN ROSNANI AWG ISA*; NORAZURA AILA MOHD HASSIM*; ZALIHA OMAR* and MISKANDAR MAT SAHRI*
DOI: https://doi.org/10.21894/jopr.2020.0004 | Published Online: 17 January 2020
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Vol. 32 (1) March 2020, p. 90-102

COMPARATIVE ASSESSMENT OF THERMAL RESISTANCE OF PALM STEARIN AND HIGH OLEIC BLENDED OIL WHEN SUBJECTED TO FRYING PRACTICE IN FAST FOOD RESTAURANTS

MINGMING HU*; KAILIN PAN**; YUETING NIU**; SHIQING CHEN**; JUN HAO YOONG‡; AZMIL HAIZAM AHMAD TARMIZI‡ and GUOWEN ZHANG*
DOI: https://doi.org/10.21894/jopr.2020.0006 | Published Online: 10 February 2020
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Vol. 32 (1) March 2020, p. 117-123

PRODUCTION OF PALM-BASED GLYCOL ESTER VIA AUTOCATALYTIC ESTERIFICATION

NOOR AZEERAH ABAS*; ROZITA YUSOFF**; HALIZA ABDUL AZIZ* and ZAINAB IDRIS*
DOI: https://doi.org/10.21894/jopr.2020.0007 | Published Online: 17 February 2020
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Vol. 32 (1) March 2020, p. 83-89

ALTERATION IN COLOUR AND FUNGAL RESISTANCE OF THERMALLY TREATED OIL PALM TRUNK AND RUBBERWOOD PARTICLEBOARD USING PALM OIL

LEE, S H*; ZAIDON, A**; RASDIANAH, D**; LUM, W C‡ and AISYAH, H A*
DOI: https://doi.org/10.21894/jopr.2020.0009 | Published Online: 21 February 2020
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Vol. 32 (1) March 2020, p. 16-23

GAS EXCHANGE CHARACTERISTICS AND CHLOROPHYLL PIGMENT OF OIL PALM SEEDLINGS UNDER INFLUENCE OF BIOINOCULANTS

SUNEETHA, V*; RAMACHANDRUDU, K** and SURESH, K**
DOI: https://doi.org/10.21894/jopr.2020.0013 | Published Online: 2 March 2020
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Vol. 32 (1) March 2020, p. 75-82

CHARACTERISATION OF PHYSICO-CHEMICAL AND ANTIOXIDANT PROPERTIES OF OIL PALM TRUNK SAPS AS AFFECTED BY THE STORAGE TIME IN COMPARISON TO NIPA SAP

SYAZANA SULAIMAN*; SHIMA JAFARZADEH* and FAZILAH ARIFFIN*
DOI: https://doi.org/10.21894/jopr.2020.0014 | Published Online: 2 March 2020
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Vol. 32 (1) March 2020, p. 64-74

SCALE-UP STUDY ON THE SUPERCRITICAL CARBON DIOXIDE STERILISATION OF OIL PALM FRESH FRUIT BUNCH

TENGKU NORSALWANI, T L*; MD SOHRAB HOSSAIN*; ABDUL KHALIL, H P S*; FATEHAH M OMAR**; AZHAR M EASAA*; ASMAH M SOFIAN* and MOHD OMAR, A K*
DOI: https://doi.org/10.21894/jopr.2020.0015 | Published Online: 3 March 2020
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Vol. 32 (1) March 2020, p. 34-49

MODELLING HOURLY AIR TEMPERATURE, RELATIVE HUMIDITY AND SOLAR IRRADIANCE OVER SEVERAL MAJOR OIL PALM GROWING AREAS IN MALAYSIA

CHEAH SEE SIANG*; CHRISTOPHER TEH BOON SUNG**; MOHD RAZI ISMAIL‡ and MOHD RAFII YUSOP‡
DOI: https://doi.org/10.21894/jopr.2020.0010 | Published Online: 5 March 2020
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Vol. 32 (1) March 2020, p. 57-63

DENSITY AND DIVERSITY OF NOCTURNAL BIRDS IN OIL PALM SMALLHOLDINGS IN PENINSULAR MALAYSIA

MUHAMMAD SYAFIQ YAHYA*; CHONG LEONG PUAN**; SHARIFAH NUR ATIKAH* and BADRUL AZHAR*
DOI: https://doi.org/10.21894/jopr.2020.0011 | Published Online: 5 March 2020
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Vol. 32 (1) March 2020, p. 124-138

CORROSION INHIBITION, ADSORPTION BEHAVIOUR AND THERMODYNAMIC PROPERTIES OF N-CINNAMALIDENE PALMITOHYDRAZIDE ON MILD STEEL IN HYDROCHLORIC ACID SOLUTION

NOOR KHAIRIN MOHD*; SHOOT-KIAN YEONG*; NOR AZOWA IBRAHIM**; SITI MARIAM MOHD NOR**; CHUNG-HUNG CHAN*; SOOK-WAH TANG*; WEN-HUEI LIM* and ZAINAB IDRIS*
DOI: https://doi.org/10.21894/jopr.2020.0012 | Published Online: 5 March 2020
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Vol. 32 (1) March 2020, p. 24-33

PRINCIPAL COMPONENT AND CLUSTER ANALYSES ON TANZANIA OIL PALM Elaeis guineensis JACQ. GERMPLASM

SUZANA, M*; ZULKIFLI, Y*; MARHALIL, M*; RAJANAIDU, N* and MEILINA ONG-ABDULLAH*
DOI: https://doi.org/10.21894/jopr.2020.0016 | Published Online: 13 March 2020
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Vol. 32 (1) March 2020, p. 50-56

VARIATIONS IN FATTY ACID PROFILES, OIL AND MOISTURE CONTENT DURING FRUIT RIPENING IN OIL PALM CROSSES GROWN IN INDIA UNDER SUB-TROPICAL ENVIRONMENT

SURESH, K* and SANJIB KUMAR BEHERA**
DOI: https://doi.org/10.21894/jopr.2020.0017 | Published Online: 16 March 2020
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Vol. 32 (1) March 2020, p. 1-15

DECOLOURISATION OF PALM OIL MILL EFFLUENT (POME) TREATMENT TECHNOLOGIES: A REVIEW

SYAHIN, M S*; W A WAN AB KARIM GHANI* and LOH, S K**
DOI: https://doi.org/10.21894/jopr.2020.0008 | Published Online: 23 March 2020
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Vol. 32 (3) September 2020, p. 406-419

TRANSCRIPTOME ANALYSIS ACROSS VARIOUS MESOCARP DEVELOPMENTAL STAGES OF MPOB-ANGOLA Dura

PRISCILLA ELIZABETH MORRIS*; PEK-LAN CHAN*; LESLIE OOI CHENG-LI*; PEI-WEN ONG*; KATIALISA KAMARUDDIN*; MARHALIL MARJUNI*; MOHD DIN AMIRUDDIN*; KUANG-LIM CHAN*; ROZANA ROSLI*; LESLIE LOW ENG-TI*; RAJINDER SINGH*; NOOR AZMI SHAHARUDDIN**; DENIS J MURPHY‡ ; MOHAMAD ARIF ABD MANAF* and SITI NOR AKMAR ABDULLAH‡‡
DOI: https://doi.org/10.21894/jopr.2020.0034 | Published Online: 30 June 2020
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Vol. 32 (3) September 2020, p. 464-470

INDICATION OF OIL PALM (Elaeis guineensis Jacq.) RESISTANCE TO Curvularia LEAF SPOT DISEASE BY PR-PROTEINS PRODUCING ABILITY

JITTRA KITTIMORAKUL*; THEERA EKSOMTRAMAGE*; ANURAG SUNPAPAO** and THANUNCHANOK CHAIRIN**
DOI: https://doi.org/10.21894/jopr.2020.0033 | Published Online: 30 June 2020
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Vol. 32 (3) September 2020, p. 497-508

ANALYSIS OF MULTISPECTRAL IMAGERY FROM UNMANNED AERIAL VEHICLE (UAV) USING OBJECT-BASED IMAGE ANALYSIS FOR DETECTION OF Ganoderma DISEASE IN OIL PALM

IZZUDDIN, M A*; HAMZAH, A**; NISFARIZA, M N‡ and IDRIS, A S*
DOI: https://doi.org/10.21894/jopr.2020.0035 | Published Online: 30 June 2020
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Vol. 32 (3) September 2020, p. 420-426

DEVELOPMENT OF NEW OIL PALM CULTIVARS IN MALAYSIA

KUSHAIRI, A* and MOHD DIN AMIRUDDIN*
DOI: https://doi.org/10.21894/jopr.2020.0037 | Published Online: 30 June 2020
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Vol. 32 (3) September 2020, p. 518-525

OXIDATIVE STABILITY AND PHYSICOCHEMICAL PROPERTIES OF PALM OLEIN

SOEK SIN TEH*; SIAU HUI MAH** and RAZNIM ARNI ABD RAZAK*
DOI: https://doi.org/10.21894/jopr.2020.0038 | Published Online: 16 July 2020
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Vol. 32 (3) September 2020, p. 365-376

SUSTAINABILITY OF PALM OIL AND ITS ACCEPTANCE IN THE EU – Review Article

OOSTERVEER, P *
DOI: https://doi.org/10.21894/jopr.2020.0039 | Published Online: 28 July 2020
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Vol. 32 (3) September 2020, p. 480-487

ASSESSMENT ON VORACITY AND PREDATION BY PREDATOR, Sycanus dichotomus STAL. (Hemiptera: Reduviidae) TO OIL PALM BAGWORM, Pteroma pendula

SITI NURULHIDAYAH AHMAD*; MOHAMED MAZMIRA MOHD MASRI* and NORMAN KAMARUDIN*
DOI: https://doi.org/10.21894/jopr.2020.0040 | Published Online: 28 July 2020
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Vol. 32 (3) September 2020, p. 509-517

ECONOMIC FEASIBILITY OF CLONAL OIL PALM PLANTING MATERIAL

NUR NADIA KAMIL*; MEILINA ONG-ABDULLAH*; AHMAD TARMIZI HASHIM*; ZAMZURI ISHAK*; BALU NAMBIAPPAN* and AZMAN ISMAIL*
DOI: https://doi.org/10.21894/jopr.2020.0042 | Published Online: 29 July 2020
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Vol. 32 (3) September 2020, p. 377-393

OIL PALM ETHYLENE RECEPTOR GENE FAMILY: IDENTIFICATION, CHARACTERISATION AND EXPRESSION ANALYSIS

NURNIWALIS ABDUL WAHAB*; CHAN KUANG LIM*; ZUBAIDAH RAMLI*; ROZANA ROSLI*; FADILA AHMAD MALIKI*; MOHAMAD ARIF ABD MANAF*; JEREMY ROBERTS** and FESTO MASSAWE‡
DOI: https://doi.org/10.21894/jopr.2020.0043 | Published Online: 29 July 2020
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Vol. 32 (3) September 2020, p. 537-546

BACTERIAL DIVERSITY IN LOGGED OVER FOREST OF MINERAL SOIL BEFORE DEVELOPMENT OF OIL PALM PLANTATION IN BELAGA, SARAWAK

SHAMSILAWANI AHAMED BAKERI* and MOHD SHAWAL THAKIB MAIDIN*
DOI: https://doi.org/10.21894/jopr.2020.0044 | Published Online: 12 August 2020
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Vol. 32 (3) September 2020, p. 488-496

OCCURRENCE, DISTRIBUTION AND FARMERS’ KNOWLEDGE ON THE MANAGEMENT OF Fusarium WILT OF OIL PALM AMONG SMALLHOLDERS IN KALANGALA, UGANDA

OTUBA M AMUGOLI*; GABRIEL DDAMULIRA*; ALEX ASIIMWE*; KIMULI JOSEPH*; GERALD DDUMBA*; EDRINE MUTYABA* and IDD RAMATHANI*
DOI: https://doi.org/10.21894/jopr.2020.0045 | Published Online: 12 August 2020
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Vol. 32 (3) September 2020, p. 526-536

PRODUCTION AND PROPERTIES OF SOLID BIOCHAR FROM OIL PALM TRUNK WASTE USING SUB-CRITICAL WATER TECHNOLOGY

NOOR AZURA MUDA*; HIROYUKI YOSHIDA*; HAZWANI ISHAK*; MOHD HALIM SHAH ISMAIL* and SHAMSUL IZHAR*
DOI: https://doi.org/10.21894/jopr.2020.0046 | Published Online: 18 August 2020
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Vol. 32 (3) September 2020, p. 453-463

REVERSE TRANSCRIPTION LOOP-MEDIATED ISOTHERMAL AMPLIFICATION (RT-LAMP) FOR DETECTION OF COCONUT CADANG-CADANG VIROID (CCCVd) VARIANTS IN OIL PALM

AHMAD ZAIRUN MADIHAH*; MOHAMED MAIZATUL-SURIZA* and ABU SEMAN IDRIS*
DOI: https://doi.org/10.21894/jopr.2020.0049 | Published Online: 27 August 2020
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Vol. 32 (3) September 2020, p. 427-438

QUANTIFYING SPATIAL VARIABILITY OF SOIL AND LEAF NITROGEN, PHOSPHOROUS AND POTASSIUM OF BASAL STEM ROT INFECTED OIL PALMS USING GEOSPATIAL INFORMATION SYSTEM

NUR SHUHADA TAJUDIN*; MOHAMED HANAFI MUSA**; IDRIS ABU SEMAN‡ and CHE NURUL AINI CHE AMRI*
DOI: https://doi.org/10.21894/jopr.2020.0047 | Published Online: 27 August 2020
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Vol. 32 (3) September 2020, p. 439-452

DETRIMENTAL EFFECTS OF COMMONLY USED INSECTICIDES IN OIL PALM TO POLLINATING WEEVIL, Elaeidobius kamerunicus FAUST. (Coleoptera: Curculionidae)

NOOR FAREHAN ISMAIL*; IDRIS ABD GHANI** and NURUL WAHIDA OTHMAN*
DOI: https://doi.org/10.21894/jopr.2020.0048 | Published Online: 27 August 2020
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Vol. 32 (3) September 2020, p. 394-405

MPOB OIL PALM (Elaeis guineensis Jacq.) GERMPLASMS LINKED TO COMPACT TRAIT FOR HIGH DENSITY PLANTING

NORZIHA, A*; FADILA, A M*; MARHALIL, M*; ZULKIFLI, Y*; MOHD DIN, A*; RAJANAIDU, N*; ONG-ABDULLAH, M* and KUSHAIRI, A*
DOI: https://doi.org/10.21894/jopr.2020.0050 | Published Online: 28 August 2020
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Vol. 32 (3) September 2020, p. 471-479

THE EFFECT OF PLANT VOLATILES ON PLANT PREFERENCE BY THE PREDATORY INSECT, Sycanus dichotomus STAL. (Hemiptera: Reduviidae) IN OIL PALM PLANTATION

SYARI JAMIAN*; NUR AZURA ADAM*; HAFIDZI MOHD NOOR*; DZARIFAH ZULPERI*; NORHAYU ASIB*; RITA MUHAMAD*; ANIS SYAHIRAH MOKHTAR*; MOHD AS’WAD ABDUL WAHAB*; BADRUL AZHAR**; MOGERET SIDI* and AZMAN MAAMOR‡
DOI: https://doi.org/10.21894/jopr.2020.0053 | Published Online: 3 September 2020
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RESEARCH ARTICLE
Vol. 32 (2) June 2020, p. 326-340

PERFORMANCE ANALYSIS OF DIVIDING WALL COLUMN MODEL FOR FRACTIONATION OF OLEOCHEMICAL FATTY ACID

MOHAMAD RIZZA OTHMAN* and GADE PANDU RANGAIAH**
DOI: https://doi.org/10.21894/jopr.2020.0031 | Published Online: 16 June 2020
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REVIEW ARTICLE
Vol. 32 (2) June 2020, p. 159-190

OIL PALM ECONOMIC PERFORMANCE IN MALAYSIA AND R&D PROGRESS IN 2019

GHULAM KADIR AHMAD PARVEEZ*; ELINA HISHAMUDDIN*; SOH KHEANG LOH*; MEILINA ONG-ABDULLAH*; KAMALRUDIN MOHAMED SALLEH*; MOHD NOOR IZUDDIN ZANAL BIDIN*; SHAMALA SUNDRAM*; ZAFARIZAL ALDRIN AZIZUL HASAN* and ZAINAB IDRIS*
DOI: https://doi.org/10.21894/jopr.2020.0032 | Published Online: 17 June 2020
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RESEARCH ARTICLE
Vol. 32 (2) June 2020, p. 211-218

INVESTIGATING THE POTENTIAL IMPACT OF LITTLE FIRE ANT (LFA), Wasmania auropunctata (Roger) (Hymenoptera: Formicidae) ON THE OIL PALM POLLINATING WEEVIL, Elaedobius kamerunicus FAUST. (Coleoptera: Curculionidae) AND FIELD WORKER PRODUCTIVITY TIME

ERO, M M*; DIKREY, R*; BATARI, T* and BONNEAU, L J G*
DOI: https://doi.org/10.21894/jopr.2020.0028 | Published Online: 9 June 2020
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RESEARCH ARTICLE
Vol. 32 (2) June 2020, p. 341-354

LIFE CYCLE ASSESSMENT FOR PALM OIL REFINING AND FRACTIONATION

CHEE LIANG YUNG*,**; VIJAYA SUBRAMANIAM* and SUMIANI YUSOFF‡
DOI: https://doi.org/10.21894/jopr.2020.0029 | Published Online: 11 June 2020
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RESEARCH ARTICLE
Vol. 32 (2) June 2020, p. 286-293

PILOT SCALE INTEGRATED ANAEROBIC-AEROBIC TREATMENT OF PALM OIL MILL EFFLUENT

MUZZAMMIL, N* and LOH, S K*
DOI: https://doi.org/10.21894/jopr.2020.0030 | Published Online: 11 June 2020
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RESEARCH ARTICLE
Vol. 32 (2) June 2020, p. 245-257

NUTRIENT RECOVERY FROM ANAEROBIC PALM OIL MILL EFFLUENT WITH THERMALLY REGENERATED SPENT BLEACHING EARTH USING RESPONSE SURFACE METHODOLOGY

FOO, N S*; LOH, S K**; ISMAIL, K‡ and BACHMANN, R T*
DOI: https://doi.org/10.21894/jopr.2020.0025 | Published Online: 1 June 2020
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SHORT COMMUNICATION
Vol. 32 (2) June 2020, p. 355-364

EFFICACY OF BAITS FOR RED PALM WEEVIL (RPW), Rhynchophorus ferrugineus OLIVIER UNDER CONSTANT LABORATORY CONDITION

MOHAMAD HARIS-HUSSAIN*; NORMAN KAMARUDIN** and WAHIZATUL AFZAN AZMIǂ
DOI: https://doi.org/10.21894/jopr.2020.0026 | Published Online: 4 June 2020
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RESEARCH ARTICLE
Vol. 32 (2) June 2020, p. 228-236

PRELIMINARY FIELD AND COSTS EVALUATION OF A NEW MECHANISED SYSTEM FOR HOLING SOIL IN LARGE POLYBAG IN OIL PALM NURSERY

NOR AZI ASMINDA JOHARI*; DARIUS EL PEBRIAN**; SELVAKKUMAR K N VAIAPPURI** and NAQIUDDIN A HAYUM**
DOI: https://doi.org/10.21894/jopr.2020.0027 | Published Online: 5 June 2020
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RESEARCH ARTICLE
Vol. 32 (2) June 2020, p. 294-302

CONTINUOUS AND CIRCULATED BATCH PROCESSES FOR ESTERIFICATION OF FREE FATTY ACIDS BY NOVOZYM 435 IN EXPANDED BED REACTOR: A CASE STUDY OF PALM FATTY ACID DISTILLATE

SAWITTREE MULALEE*; BOONANUN SUMRANWONG* and MUENDUEN PHISALAPHONG*
DOI: https://doi.org/10.21894/jopr.2020.0022 | Published Online: 15 May 2020
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RESEARCH ARTICLE
Vol. 32 (2) June 2020, p. 271-285

PHYSICO-CHEMICAL AND CONDUCTIVITY STUDIES OF MICROCRYSTALLINE CELLULOSE (MCC) EXTRACTED FROM OIL PALM FRONDS AS A SUSCEPTIBLE FILLER IN PLA-LiTFSI POLYMER ELECTROLYTE

M HAZWAN HUSSIN*; IBRAHIM BELLO**; TUAN SHERWYN HAMIDON*; MOHAMAD ABU BAKAR*; AHMAD AZMIN MOHAMAD‡ and M K MOHAMAD HAAFIZ‡‡
DOI: https://doi.org/10.21894/jopr.2020.0023 | Published Online: 18 May 2020
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RESEARCH ARTICLE
Vol. 32 (2) June 2020, p. 237-244

SURVEILLANCE OF Ganoderma DISEASE IN OIL PALM PLANTED BY PARTICIPANTS OF THE SMALLHOLDERS REPLANTING INCENTIVE SCHEME IN MALAYSIA

MOHD SHUKRI IBRAHIM*; IDRIS ABU SEMAN*; MOHD HEFNI RUSLI*; MOHAMAD ANUAR IZZUDDIN*; NORMAN KAMARUDIN*; KHAIRUMAN HASHIM* and ZULKIFLI ABD MANAF*
DOI: https://doi.org/10.21894/jopr.2020.0024 | Published Online: 21 May 2020
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RESEARCH ARTICLE
Vol. 32 (2) June 2020, p. 201-210

QUANTITATIVE TRAIT LOCI (QTL) LINKED TO COMPACTNESS IN AN INTERSPECIFIC BACKCROSS TWO (BC2) POPULATION OF OIL PALM

ZULKIFLI, Y*; RAJINDER, S*; TING, N C*; MARHALIL, M*; XAVIAR, A**; RAJANAIDU, N*; JANSEN, J‡; MOHD DIN, A*; ONG-ABDULLAH, M*; CHIE, T Y‡‡ and KUSHAIRI, A*
DOI: https://doi.org/10.21894/jopr.2020.0019 | Published Online: 27 April 2020
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RESEARCH ARTICLE
Vol. 32 (2) June 2020, p. 313-325

EFFECTS OF PELLET SUPPLEMENTED WITH DIFFERENT PERCENTAGES OF OIL PALM LIPID SOURCES ON BROILER PERFORMANCE, CARCASS TRAIT AND FEED QUALITY

WAN NOORAIDA, W M* and ABIDAH, M N*
DOI: https://doi.org/10.21894/jopr.2020.0021 | Published Online: 28 April 2020
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RESEARCH ARTICLE
Vol. 32 (2) June 2020, p. 258-270

IDENTIFICATION OF HYDROPHILIC PHENOLIC COMPOUNDS DERIVED FROM PALM OIL PRODUCTS

FADZLINA ABDULLAH* and NUR AAINAA SYAHIRAH RAMLI*
DOI: https://doi.org/10.21894/jopr.2020.0020 | Published Online: 28 April 2020
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RESEARCH ARTICLE
Vol. 32 (2) June 2020, p. 303-312

INFLUENCE OF POLYGLYCEROL ESTER ADDITIVE ON PALM OIL FRACTIONATION IN RELATION TO THE CRYSTAL SIZE DISTRIBUTION

SAW, M H*; ELINA HISHAMUDDIN*; SITI HAZIRAH MOHAMAD FAUZI*; YEOH, C B* and LIM, W H*
DOI: https://doi.org/10.21894/jopr.2020.0003 | Published Online: 17 January 2020
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RESEARCH ARTICLE
Vol. 32 (2) June 2020, p. 191-200

SELECTION OF OIL PALM MALE PARENTS FOR OPTIMAL PLANTING DENSITY ESTIMATED FROM MATURE CROWN SURFACE

BREURE, C J* and M MUSTIQA SIREGAR*
DOI: https://doi.org/10.21894/jopr.2020.0005 | Published Online: 28 January 2020
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RESEARCH ARTICLE
Vol. 32 (2) June 2020, p. 219-227

Bipolaris sorokiniana: A POTENTIAL INDIGENOUS PLANT PATHOGEN TO CONTROL GOOSEGRASS (Eleusine indica) IN OIL PALM PLANTATIONS

MAIZAN ISMAIL*; ABD SHUKOR JURAIMI**; ABU SEMAN IDRIS*; MOHD HEFNI RUSLI*; RAJA ZULKIFLI RAJA OMAR* and MOHD NAQIUDDIN*
DOI: https://doi.org/10.21894/jopr.2020.0018 | Published Online: 21 April 2020
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SHORT COMMUNICATION
Vol. 32 (4) December 2020, p. 696-704

OPTIMISATION OF THE BOMBARDMENT PARAMETERS FOR TRANSFORMATION AND REGENERATION OF STABLE OIL PALM TRANSFORMANTS

A RAHMAN NURFAHISZA*; GHULAM KADIR AHMAD PARVEEZ*; OMAR ABDUL RASID* and MAT YUNUS ABDUL MASANI*
DOI: https://doi.org/10.21894/jopr.2020.0060 | Published Online: 11 September 2020
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RESEARCH ARTICLE
Vol. 32 (4) December 2020, p. 688-695

CODE OF GOOD MILLING PRACTICE IN ENHANCING SUSTAINABLE PALM OIL PRODUCTION

NURUL FATHIAH MOHD SHUKRI*; AINIE KUNTOM*; MOHD FIKRY JAMALUDDIN*; MUHAMMAD NIZAMUDIN MOHAMED* and N RAVI MENON*
DOI: https://doi.org/10.21894/jopr.2020.0055 | Published Online: 10 September 2020
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RESEARCH ARTICLE
Vol. 32 (4) December 2020, p. 674-687

SOIL AND WATER CONSERVATION PRACTICES AMONG THE INDEPENDENT OIL PALM SMALLHOLDERS IN BETONG AND SARATOK, SARAWAK, MALAYSIA

MOHAMAD ARFAN JOHARI*; NAZIRAH CHE JAAFAR*; NUR HANANI MANSOR* and KHAIRUMAN HASHIM*
DOI: https://doi.org/10.21894/jopr.2020.0065 | Published Online: 22 September 2020
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RESEARCH ARTICLE
Vol. 32 (4) December 2020, p. 665-673

ECOTOXICOLOGICAL BEHAVIOUR OF POORLY WATER SOLUBLE FATTY ALCOHOL ETHOXYLATES IN FRESHWATER ENVIRONMENT

SITI AFIDA ISHAK*; NOORAZAH ZOLKARNAIN* and RAZMAH GHAZALI*
DOI: https://doi.org/10.21894/jopr.2020.0051 | Published Online: 28 August 202
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RESEARCH ARTICLE
Vol. 32 (4) December 2020, p. 656-664

PHYSICO-CHEMICAL PROPERTIES AND SENSORY EVALUATION OF FERMENTED AND ACIDIFIED MILK BEVERAGES IN MALAYSIAN MARKET – REFERENCE FOR PALM-BASED ACIDIFIED MILK BEVERAGE

NORAZURA AILA, M H*; NUR HAQIM, I*; SITI HAZIRAH, M F*; NAJWA, S*; CHE ANISHAS, C I* and MAZNAH, Z*
DOI: https://doi.org/10.21894/jopr.2020.0068 | Published Online: 20 September
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RESEARCH ARTICLE
Vol. 32 (4) December 2020, p. 647-655

EFFECTS OF DEEP-FRYING PALM OIL AND EXERCISE ON SPERM AND BIOCHEMICAL PARAMETERS IN MICE

VEDAT SAĞMANLIGIL*; DILEK ARSOY**; SERKAN SAYINER‡ ; AYFER FINDIK‡‡ and NURHAYAT GÜLMEZ‡‡‡
DOI: https://doi.org/10.21894/jopr.2020.0074 | Published Online: 5 October 2020
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RESEARCH ARTICLE
Vol. 32 (4) December 2020, p. 639-646

BROMATOLOGICAL COMPOSITION OF PALM KERNEL MEAL ACCORDING TO ITS ORIGIN AND PRODUCTION PERIODS POTENTIAL USE OF PALM KERNEL MEAL IN ANIMAL FEED

EDISON MAZÓN PAREDES*; MARCELINO HERRERA RODRÍGUEZ**; CARLOS MAZÓN PAREDES*; ANTÓN GARCÍA MARTÍNEZ‡ ; MANUEL DELGADO PERTIÑEZ‡‡ and JOSÉ LUIS GUZMÁN GUERRERO‡‡‡
DOI: https://doi.org/10.21894/jopr.2020.0079 | Published Online: 7 October 2020
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RESEARCH ARTICLE
Vol. 32 (4) December 2020, p. 630-638

GAMMA-TOCOTRIENOL DOES NOT COMPETE WITH MITOXANTRONE TO BE EFFLUXED FROM ABCG2 OVEREXPRESSING CELLS

KARL VERN TAN*; SANDY HWEI SAN LOH**; DEBORAH BRIGGS‡ ; IAN KERR‡ and SUE-MIAN THEN*
DOI: https://doi.org/10.21894/jopr.2020.0063 | Published Online: 14 September 2020
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RESEARCH ARTICLE
Vol. 32 (4) December 2020, p. 621-629

INFLUENCE OF SULPHURIC ACID CONCENTRATION ON THE PHYSICO-CHEMICAL PROPERTIES OF MICROFIBRILLATED CELLULOSE FROM OIL PALM EMPTY FRUIT BUNCH FIBRE

FATIHA ISMAIL*; NUR ELIYANTI ALI OTHMAN*; NOORSHAMSIANA ABDUL WAHAB* and ASTIMAR ABDUL AZIZ*
DOI: https://doi.org/10.21894/jopr.2020.0057 | Published Online: 11 September 2020
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RESEARCH ARTICLE
Vol. 32 (4) December 2020, p. 610-620

EXTRACTION AND CHARACTERISATION OF CELLULOSE FROM THE RESIDUE OF OIL PALM EMPTY FRUIT BUNCH-XYLAN EXTRACTION

NOORSHAMSIANA, A W*; NOR FAIZAH, J*; KAMARUDIN, H*; NUR ELIYANTI, A O*; FATIHA, I* and ASTIMAR, A A*
DOI: https://doi.org/10.21894/jopr.2020.0052 | Published Online: 2 September 2020
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RESEARCH ARTICLE
Vol. 32 (4) December 2020, p. 599-609

DETECTION OF QUINOLINE USING AMMONIA PLASMA-FUNCTIONALISED MULTI-WALLED CARBON NANOTUBES AND APPLICATION TO REAL SAMPLES

ZULAIHA ABDUL RAHIM*; NOR AZAH YUSOF**; AZIZUL ISHA‡ ; MUHAMMAD ANIQ SHAZNI MOHAMMAD HANIFF‡‡; FARUQ MOHAMMAD‡‡‡; MOHD ISMAHADI SYONO‡‡ and NURULHAIDAH DAUD‡‡
DOI: https://doi.org/10.21894/jopr.2020.0087 | Published Online: 8 October 2020
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RESEARCH ARTICLE
Vol. 32 (4) December 2020, p. 590-598

STRUCTURAL TRANSFORMATION OF OIL PALM MESOCARP FIBRE (OPMF) IN WATER AT SUBCRITICAL STATE

SANGGITHAPRIYA MAHANDRAN*; NORDIN SABLI*; MOHD HALIM SHAH ISMAIL*; HIROYUKI YOSHIDA* and SHAMSUL IZHAR*
DOI: https://doi.org/10.21894/jopr.2020.0054 | Published Online: 7 September 2020
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REVIEW ARTICLE
Vol. 32 (4) December 2020, p. 547-558

POTENTIAL OF FEEDING CRUDE PALM OIL AND CO-PRODUCTS OF PALM OIL MILLING ON LAYING HENS’ PERFORMANCE AND EGG QUALITY: A REVIEW

MOOKIAH SAMINATHAN*; WAN NOORAIDA WAN MOHAMED*; ‘ABIDAH MD NOH*; NUR ATIKAH IBRAHIM*; MUHAMMAD AMIRUL FUAT*; NOOR LIDA HABI MAT DIAN* and SURIYA KUMARI RAMIAH**
DOI: https://doi.org/10.21894/jopr.2020.0059 | Published Online: 11 September 2020
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RESEARCH ARTICLE
Vol. 32 (4) December 2020, p. 582-588

THE STATUS OF Oryctes rhinoceros Nudivirus (OrNV) INFECTION IN Oryctes rhinoceros (Coleoptera: Scarabaeidae) IN INDONESIA

SAT RAHAYUWATI*; YAYI MUNARA KUSUMAH*; SUDHARTO PRAWIROSUKARTO**; DADANG* and TEGUH SANTOSO*
DOI: https://doi.org/10.21894/jopr.2020.0041 | Published Online: 28 July 2020
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RESEARCH ARTICLE
Vol. 32 (4) December 2020, p. 569-581

POTENTIAL OIL PALM GENETIC MATERIALS DERIVED FROM INTROGRESSION OF GERMPLASM (MPOB-Nigeria, MPOB-Zaire and MPOB-Cameroon accessions) TO ADVANCED (AVROS) BREEDING POPULATION

NOR AZWANI, A B*; FADILA, A M*; MOHD DIN, A*; RAJANAIDU, N*; NORZIHA, A*; SUZANA, M*; MARHALIL, M*; ZULKIFLI, Y* and KUSHAIRI, A*
DOI: https://doi.org/10.21894/jopr.2020.0072 | Published Online: 25 September 2020
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RESEARCH ARTICLE
Vol. 32 (4) December 2020, p. 559-568

TRANSCRIPTOMICS OF MICRODISSECTED STAMINODES AND EARLY DEVELOPING CARPELS FROM FEMALE INFLORESCENCES OF Elaeis guineensis

SIEW-ENG OOI*; NORASHIKIN SARPAN*; NORAZLIN ABDUL AZIZ**; AZIMI NURAZIYAN*; ABU BAKAR NOR-AZWANI* and MEILINA ONG-ABDULLAH*
DOI: https://doi.org/10.21894/jopr.2020.0036 | Published Online: 30 June 2020
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