JARQ:Japan Agricultural Research Quarterly
About JARQ
The Japan Agricultural Research Quarterly (JARQ) is a publication of the Japan International Research Center for Agricultural Sciences (JIRCAS), which provides readers overseas with the latest information on key achievements and developments in agricultural research in Japan, with the expectation that this information would contribute to the agricultural development of countries in tropical and subtropical regions.
The JARQ has updated its editorial policy to meet the demands of the times. The current editorial policy, revised on March 12, 2025, aims to "disseminate findings and trends in research related to Japan's agriculture, forestry, and fisheries, as well as international collaborative research involving Japanese researchers, to a broad audience both domestically and internationally through original articles and reviews." To this end, JARQ publishes original articles and research reviews, which are expected to contribute to agricultural development in developing regions.
The JARQ editorial policy revised on July 23, 1999 featured a different classification of papers. At that time, all submissions were classified as "research articles" and not limited to original articles, allowing authors to present "the aims, methods, results, and broader impact of a series of research, including previously published work."
Following the 1999 policy, the JARQ editorial office accepted research articles that included previously published content. However, the current editorial policy (revised on March 12, 2025) defines original articles as "papers that summarize the results of research conducted by the author, with no precedent in content or other aspects." Therefore, under the 2025 policy, previously published papers are no longer accepted.
All Issue
Efficacy of Poultry By-product Meal as an Effective Alternative to Fish Meal in Aquaculture Feed for Milkfish Chanos chanos
Tsuyoshi SUGITA, Amafe Belleza GAVILE, Joemel Gentelizo SUMBING, JARQ:Japan Agricultural Research Quarterly. 54(3) , 277-284 (2020-07-01)
jarq54-3_277-284.pdf669.73 KB
Development and Standardization of Analytical Methods for Increasing Varieties of Genetically Modified Crops
Junichi MANO, Reona TAKABATAKE, Kazumi KITTA, JARQ:Japan Agricultural Research Quarterly. 54(2) , 113-119 (2020-04-01)
jarq54-2_113-119.pdf858.99 KB
Post-Harvest Techniques for Practical Use Regarding a Steady Year-Round Supply of Garlic Bulbs
Atsushi ITO, Eiko NIWATA, Chihomi KON, Mitsuru HACHIYA, JARQ:Japan Agricultural Research Quarterly. 54(2) , 121-127 (2020-04-01)
jarq54-2_121-127.pdf486.24 KB
Emergence of Glyphosate- and Glufosinate-resistant Italian Ryegrass (Lolium multiflorum) Populations in Japanese Pear Orchards in Japan and their Responses to Several Foliar-applied Herbicides
Minoru ICHIHARA, Tohru TOMINAGA, Masayuki YAMASHITA, Hitoshi SAWADA , JARQ:Japan Agricultural Research Quarterly. 54(2) , 129-135 (2020-04-01)
jarq54-2_129-135.pdf417.05 KB
Emergence of Glyphosate- and Glufosinate-resistant Italian Ryegrass (Lolium multiflorum) Populations in Japanese Pear Orchards in Japan and their Responses to Several Foliar-applied Herbicides
Takahiro HARA, Ryoma TAKESHIMA, Katsuhiro MATSUI, JARQ:Japan Agricultural Research Quarterly. 54(2) , 137-143 (2020-04-01)
jarq54-2_137-143.pdf263.42 KB
Effect of Increased Silicon Content of Paddy Rice on Sheath Blight Development through Carbonized Rice Husk Application
Peter Lyod P. SABES, Mathias Mawo LON, Mchuno Alfred PETER, Jumpei MARUYAMA, Shinichi KOYAMA, Tetsu WATANABE, Shinzo KOIZUMI, JARQ:Japan Agricultural Research Quarterly. 54(2) , 145-151 (2020-04-01)
jarq54-2_145-151.pdf575.47 KB
Simulation of Soil Water and Heat Transfer under Subsurface Irrigation Considering Spatial Differences in Soil Hydraulic Properties
Kosuke HAMADA, Yoshiyuki SHINOGI, Tomoyuki TANIGUCHI, Hidetoshi MOCHIZUKI, Takeshi TAKEMURA, JARQ:Japan Agricultural Research Quarterly. 54(2) , 153-162 (2020-04-01)
jarq54-2_153-162.pdf678.83 KB
Effect of a Net-covered Windbreak on the Heat Loss from a Heated Greenhouse
Takeshi KUROYANAGI, JARQ:Japan Agricultural Research Quarterly. 54(2) , 163-170 (2020-04-01)
jarq54-2_163-170.pdf904.95 KB
Impact of Contract Farming on Farmers’ Income – A Case of Wuchang Rice in China
Wenhao WU, Guosheng WU, Changbin YIN, Hsiaoping CHIEN, JARQ:Japan Agricultural Research Quarterly. 54(2) , 171-177 (2020-04-01)
jarq54-2_171-177.pdf630.22 KB
Diversity of Prokaryotes in the Rumen of Steers Fed a Diet Supplemented with or without Bromochloromethane, an Anti-Methanogenic Compound
Hiroki MATSUI, Kiyoshi TAJIMA, Hisao ITABASHI, JARQ:Japan Agricultural Research Quarterly. 54(2) , 179-183 (2020-04-01)
jarq54-2_179-183.pdf330.28 KB
Estimation of the Stem Volume of 30-year-old Eucalyptus globulus in the Northern Ethiopian Highlands
Koichi TAKENAKA, Buruh ABEBE, Ryuichi TABUCHI, JARQ:Japan Agricultural Research Quarterly. 54(2) , 185-191 (2020-04-01)
jarq54-2_185-191.pdf416.26 KB
Migratory Pattern of the Spotted Scat (Scatophagus argus) in the Mangrove Estuary of the Matang Mangrove Forest Reserve, Malaysia, Estimated by Stable Isotope Analysis
Shinsuke MORIOKA, Katsuhisa TANAKA, Tatsuya YURIMOTO, Faizul M. KASSIM, Kazumaro OKAMURA, JARQ:Japan Agricultural Research Quarterly. 54(2) , 193-199 (2020-04-01)
jarq54-2_193-199.pdf872.63 KB
Recent Progress in Breeding Low-Temperature-Tolerant Sweetpotato Lines in Japan
Toshikazu KURANOUCHI, Mio NISHINAKA, Akiko TAKADA, Toru KUMAGAI, Makoto NAKATANI, Kenji KATAYAMA, JARQ:Japan Agricultural Research Quarterly. 54(1) , 1-6 (2020-01-17)
jarq54-1_1-6.pdf638.34 KB
Sex and Breed Differences in the Constitutive Gene Expression of Hepatic Drug Metabolizing Enzymes in Meishan and Landrace Pigs: Testosterone-Mediated Differences
Misaki KOJIMA, JARQ:Japan Agricultural Research Quarterly. 54(1) , 7-12 (2020-01-17)
jarq54-1_7-12.pdf762.32 KB
Transcriptome Analysis of Two Strains of Aspergillus oryzae with Different Responses to Light
Satoshi SUZUKI, Ken-ichi KUSUMOTO, JARQ:Japan Agricultural Research Quarterly. 54(1) , 13-20 (2020-01-17)
jarq54-1_13-20.pdf1.27 MB
Does HLB Disease Prefer Citrus Growing in Alkaline Soil?
Haruhiko INOUE, Akiko OKADA, Shigeru UENOSONO, Motofumi SUZUKI, Tomoya MATSUYAMA4, Yoshikuni MASAOKA, JARQ:Japan Agricultural Research Quarterly. 54(1) , 21-29 (2020-01-17)
jarq54-1_21-29.pdf729.8 KB
NPK Removal from Maize Cultivation Fields in Kenethao and Paklai Districts, Xayabury Province, Lao PDR
Naruo MATSUMOTO, Saythong OUDTHACHID, Phanthasin KHANTHAVONG, Amphay SOUVANNALAT, JARQ:Japan Agricultural Research Quarterly. 54(1) , 31-40 (2020-01-17)
jarq54-1_31-40.pdf841.61 KB
pH-dependent Liquefaction of Thai Fermented Rice Noodles (khanom jeen) Associated with Bacterial Amylolytic Enzymes
Junichiro MARUI, Sirinan SHOMPOOSANG, Wanchai PANTHAVEE, JARQ:Japan Agricultural Research Quarterly. 54(1) , 41-45 (2020-01-17)
jarq54-1_41-45.pdf626.28 KB
Estimation of the Stem Volume of 30-year-old Eucalyptus globulus in the Northern Ethiopian Highlands
Yasuhiro INATSU, Arranee CHOTIKO, Chiraporn ANANCHAIPATTANA, JARQ:Japan Agricultural Research Quarterly. 54(1) , 47-51 (2020-01-17)
jarq54-1_47-51.pdf637 KB
Variations of Basic Nutritional Compositions by Seasons and Sizes in Four Freshwater Fishes as Common Food Sources in Lao P.D.R.
Kaori FUJITA, Philavanh BOUTSAVATH, Xaypunya MAHATHILATH, Masataka SAITO, Bounsong VONGVICHITH, Katsumi HASADA, Shinsuke MORIOKA, JARQ:Japan Agricultural Research Quarterly. 54(1) , 53-61 (2020-01-17)
jarq54-1_53-61.pdf756.33 KB
Global Rice Market Projections Distinguishing Japonica and Indica Rice under Climate Change
Tatsuji KOIZUMI, Gen FURUHASHI, JARQ:Japan Agricultural Research Quarterly. 54(1) , 63-91 (2020-01-17)
jarq54-1_63-91.pdf750.4 KB
Comparison on the Growth Characteristics between Calves of Two Different Japanese Beef Breeds Suckled by Japanese Shorthorn Dams
Manabu YAMAGUCHI, Akira WATANABE, Naoki TAKENOUCHI, Hiroyuki SUZUKI, Masatoshi MATSUZAKI, JARQ:Japan Agricultural Research Quarterly. 54(1) , 93-100 (2020-01-17)
jarq54-1_93-100.pdf567.56 KB
Vegetation Dynamics and Phenological Shifts in Long-term NDVI Time Series in Inner Mongolia, China
Zhe GONG, Kensuke KAWAMURA, Naoto ISHIKAWA, Masakazu GOTO, Wulan TUYA, Dalai ALATENG, Ting YIN, Yutaka ITO, JARQ:Japan Agricultural Research Quarterly. 54(1) , 101-112 (2020-01-17)
Influence of Daily Temperature Range on Seedling Emergence and Establishment and Estimation of Early Sowing Limits in Directly Seeded Rice Under Submerged Conditions in a Cold-Climate Area (Hokuriku Region, Japan)
Masami FURUHATA, Yoshitaka HARA, JARQ:Japan Agricultural Research Quarterly. 53(4) , 229-239 (2019-10-25)
jarq53-4_229-239.pdf880.13 KB
Study of a Possible Method for Transmitting Knowledge on the Cleaning of Combine Harvester Interiors
Mitsuyoshi SHIMAZU, Naonobu UMEDA, Eiji KURIHARA, Masaki UMEMOTO, Junko YAMAMOTO, Hitoshi OGIWARA, Kazuyoshi NONAMI, JARQ:Japan Agricultural Research Quarterly. 53(4) , 241-246 (2019-10-25)
jarq53-4_241-246.pdf486.55 KB
Study of Grain Conveyor Structure to Reduce Cleaning Time of Combine Harvester
Keisuke ARAI, Mitsuyoshi SHIMAZU, Naonobu UMEDA, Eiji KURIHARA, JARQ:Japan Agricultural Research Quarterly. 53(4) , 247-253 (2019-10-25)
jarq53-4_247-253.pdf807.96 KB
Dry Matter Yield Response to Seeding Rate and Row Spacing in Direct-seeded and Double-harvested Forage Rice
Hiroshi NAKANO, Ikuo HATTORI, Satoshi MORITA, JARQ:Japan Agricultural Research Quarterly. 53(4) , 255-264 (2019-10-25)
jarq53-4_255-264.pdf390.73 KB
Spatial Variability and Geostatistical Mapping of Selected Soil Properties in Mt. Wakakusa Grassland of Japan
Khairun N. KAMARUDIN, Mayu TOMITA, Keiko KONDO, Susumu S. ABE, JARQ:Japan Agricultural Research Quarterly. 53(4) , 265-277 (2019-10-25)
jarq53-4_265-277.pdf650.57 KB
Does Soil Fertility Decline under Smallholder Rubber Farming? The Case of a West Sumatran Lowland in Indonesia
Irwin M. UMAMI, Khairun N. KAMARUDIN, HERMANSAH, Susumu S. ABE, JARQ:Japan Agricultural Research Quarterly. 53(4) , 279-287 (2019-10-25)
jarq53-4_279-287.pdf543.02 KB
The Panicle Blast Resistance Mechanism of qPbm11 in the Rice Cultivar Miyazaki-mochi is Independent from that of Pb1.
Haruhiko INOUE, Nagao HAYASHI, JARQ:Japan Agricultural Research Quarterly. 53(4) , 289-293 (2019-10-25)
jarq53-4_289-293.pdf283.75 KB