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

Determination of Tea Components by Enzymatic Flow Injection Analysis
Hideki HORIE, JARQ:Japan Agricultural Research Quarterly. 34(3) , 191-194 (2000-07-01)
34-3-191-194.pdf680.15 KB

An Immunohistochemical and Ultrastructural Study of Thymic Lymphoma in a Steer
Yoshikazu YAMAZAKI, Yoshiharu ISHIKAWA, Tomoyuki SHIBAHARA, Koichi KADOTA, Seishi ISHINO, JARQ:Japan Agricultural Research Quarterly. 34(3) , 195-198 (2000-07-01)
34-3-195-198.pdf802.51 KB

Immunohistochemical and Ultrastructural Studies of Hemangiopericytomas in Tow Calves
Takashi TAKAHASHI, Yukie TETSUKA, Yoshiro MITARAI, Masumi SATO, Mizue HIKITA, Tomoyuki SHIBAHARA, Koichi KADOTA, JARQ:Japan Agricultural Research Quarterly. 34(3) , 199-202 (2000-07-01)
34-3-199-202.pdf725.19 KB

Potential Risk of Transmission and Spread of Foot-and-Mouth Disease in Kagoshima Prefecture, Japan
Takashi OGAWA, Kenshi MATSUDA, JARQ:Japan Agricultural Research Quarterly. 34(3) , 203-208 (2000-07-01)
34-3-203-208.pdf813.91 KB

Evaluation of Alternative Farming Systems by Multicriteria Analysis
Kiyotada HAYASHI, JARQ:Japan Agricultural Research Quarterly. 34(3) , 209-213 (2000-07-01)
34-3-209-213.pdf845.17 KB

Analysis of Relationship between Root Length Density and Water Uptake by Roots of Five Crops Using Minirhizotron in the Semi-Arid Tropics
Katsuyuki KATAYAMA, Osamu ITO, Joseph Jackson ADU-GYAMFI, Theertham Pradymna RAO, JARQ:Japan Agricultural Research Quarterly. 34(2) , 81-86 (2000-04-01)
34-2-081-086.pdf931.45 KB

Estimation of Balance of Nitrogen, Phosphorus and Potassium in Relation to Chemical Fertilizer Application in Japanese Orchard Fields
Kiyoshi HIRAOKA, Yoshiaki UMEMIYA, JARQ:Japan Agricultural Research Quarterly. 34(2) , 87-92 (2000-04-01)
34-2-087-092.pdf1.02 MB

Variation in Southern Blight Fungus in Japan Detected by ITS-RFLP Analysis
Ikuko OKABE, Chiharu NORIKAWA, Naoyuki MATSUMOTO, JARQ:Japan Agricultural Research Quarterly. 34(2) , 93-97 (2000-04-01)
34-2-093-097.pdf822.94 KB

Robotization of Agricultural Vehicles (Part 1) : ― Component Technologies and Navigation Systems ―
Osamu YUKUMOTO, Yosuke MATSUO, Noboru NOGUCHI, JARQ:Japan Agricultural Research Quarterly. 34(2) , 99-105 (2000-04-01)
34-2-099-105.pdf1.11 MB

Robotization of Agricultural Vehicles (Part 2) : ― Description of the Tilling Robot ―
Osamu YUKUMOTO, Yosuke MATSUO, Noboru NOGUCHI, JARQ:Japan Agricultural Research Quarterly. 34(2) , 107-114 (2000-04-01)
34-2-107-114.pdf1.22 MB

Cultural Control Systems of Naturalized Weeds in Forage Crop Fields
Seturo SATO, Koji TATENO, Ryoji KOBAYASHI, Kuniaki SAKAMOTO, JARQ:Japan Agricultural Research Quarterly. 34(2) , 115-124 (2000-04-01)
34-2-115-124.pdf1.46 MB

Safe Ammonia Treatment System of Cereal Straws for Ruminant Feeding
Tomiharu MANDA, Masaru MURAI, Akio YAMAZAKI, JARQ:Japan Agricultural Research Quarterly. 34(2) , 125-130 (2000-04-01)
34-2-125-130.pdf1.09 MB

Isolation of Bacteria Producing Bluish-Purple Pigment and Use for Dyeing
Akira SHIRATA, Takanori TSUKAMOTO, Hiroe YASUI, Tamako HATA, Shoji HAYASAKA, Atsushi KOJIMA, Hiroshi KATO, JARQ:Japan Agricultural Research Quarterly. 34(2) , 131-140 (2000-04-01)
34-2-131-140.pdf1.63 MB

Modulation of TNFα and Nitric Oxide Production by Macrophages and Uterine Protein Expression in Mice Chronically Treated with Sex Steroids
Meraku TEFERA, Eiichi MOMOTANI, JARQ:Japan Agricultural Research Quarterly. 34(2) , 141-146 (2000-04-01)
34-2-141-146.pdf1.12 MB

Profiles of Species Composition and Aboveground Biomass in a Mangrove Forest, Matang, Peninsular Malaysia
Hiroyuki TANOUCHI, Shozo NAKAMURA, Yukihito OCHIAI, AZMAN Hassan, JARQ:Japan Agricultural Research Quarterly. 34(2) , 147-151 (2000-04-01)
34-2-147-151.pdf932.75 KB

Diurnal and Seasonal Changes in CO2 Concentration and Flux in an Andisol and Simulation Based on Changes in CO2 Production Rate and Gas Diffusivity
Seiko YOSHIKAWA, Shuichi HASEGAWA, JARQ:Japan Agricultural Research Quarterly. 34(1) , 1-13 (2000-01-01)
34-1-001-013.pdf1.97 MB

Role of Semiochemicals in Prey-Locating Behavior of a Generalist Predatory Stink Bug, Eocanthecona Furcellata (Wolff) (Heteroptera: Pentatomidae)
Tetsuya YASUDA, JARQ:Japan Agricultural Research Quarterly. 34(1) , 15-20 (2000-01-01)
34-1-015-020.pdf1007.3 KB

Development of Fully Automatic Vegetable Transplanter
Konosuke TSUGA, JARQ:Japan Agricultural Research Quarterly. 34(1) , 21-28 (2000-01-01)
34-1-021-028.pdf1.19 MB

Detection of Crop Transpiration and Water Stress by Temperature-Related Approach under Field and Greenhouse Conditions
Guo Yu QIU, Koichi MIYAMOTO, Sadanori SASE, Limi OKUSHIMA, JARQ:Japan Agricultural Research Quarterly. 34(1) , 29-37 (2000-01-01)
34-1-029-037.pdf1.67 MB

Earthquake Damage to Fill Dams in Japan
Shigeru TANI, JARQ:Japan Agricultural Research Quarterly. 34(1) , 39-48 (2000-01-01)
34-1-039-048.pdf1.33 MB

Decrease of Nitrate and Restoration of Mineral Balance in Forage Field Soil and Corn Plant in Dairy Farms
Yoshikuni MASAOKA, Yusuke ARAKAWA, Taizo MASUDA, JARQ:Japan Agricultural Research Quarterly. 34(1) , 49-53 (2000-01-01)
34-1-049-053.pdf872.58 KB

Varietal Differences in Palatability of Orchardgrass (Dactylis glomerata L.) and Breeding for Palatability and Quality
Kazuhiko MIZUNO, Shigeru SHIOYA, Fumihiro FUJIMOTO, Shin-ichi SUGITA, JARQ:Japan Agricultural Research Quarterly. 34(1) , 55-62 (2000-01-01)
34-1-055-062.pdf1.16 MB

Growth of Ensideroxylon zwageri seedlings and Silvicultural Changes in Logged-Over and Burned Forests of Bukit Soeharto, East Kalimantan, Indonesia
Yoshiyuki KIYONO, HASTANIAH, JARQ:Japan Agricultural Research Quarterly. 34(1) , 63-67 (2000-01-01)
34-1-063-067.pdf820.22 KB

Nitrogen Fixation Activity by Periphytic Blue-Green Algae in a Seagrass Bed on the Great Barrier Reef
Hitoshi IIZUMI, Masumi YAMAMURO, JARQ:Japan Agricultural Research Quarterly. 34(1) , 69-73 (2000-01-01)
34-1-069-073.pdf856.8 KB

Age Estimation of Four Oceanic Squids, Ommastrephes bartramii, Dosidicus gigas, Sthenoteuthis oualaniensis, and Illex argentinus (Cephalopoda, Ommastrephidae) Based on Statolith Microstructure
Akihiko YATSU, JARQ:Japan Agricultural Research Quarterly. 34(1) , 75-80 (2000-01-01)
34-1-075-080.pdf1.08 MB

Identification of DNA Polymorphism Induced by X-Ray and UV Irradiation in Plant Cells
Shigeru KURODA, Hiroshi YANO, Yasunori KOGA-BAN, Yutaka TABEI, Fumio TAKAIWA, Toshiaki KAYANO, Hiroshi TANAKA, JARQ:Japan Agricultural Research Quarterly. 33(4) , 223-226 (1999-10-01)
33-4-223-226.pdf768.2 KB

Gamma-Ray-Induced Mutation Breeding in Fruit Trees : Breeding of Mutant Cultivars Resistant to Black Spot Disease in Japanese Pear
Toji YOSHIOKA, Tetsuo MASUDA, Kazuo KOTOBUKI, Tetsuro SANADA, Yuji ITO, JARQ:Japan Agricultural Research Quarterly. 33(4) , 227-234 (1999-10-01)
33-4-227-234.pdf1.26 MB

Technique for Deep Placement of Coated Urea Fertilizer in Soybean Cultivation
Yoshihiko TAKAHASHI, Takuji OHYAMA, JARQ:Japan Agricultural Research Quarterly. 33(4) , 235-242 (1999-10-01)
33-4-235-242.pdf1.19 MB

Resource-Recycling System for Domestic Wastewater Treatment Using Biogeofilter Ditches Planted with Useful Plants
Yasuo OZAKI, JARQ:Japan Agricultural Research Quarterly. 33(4) , 243-249 (1999-10-01)
33-4-243-249.pdf1.07 MB

Determination and Simulation of Soil Moisture Dynamics in Upland Fields in the Cerrados Area (Brazil)
Kazuhiko OHBA, JARQ:Japan Agricultural Research Quarterly. 33(4) , 251-259 (1999-10-01)
33-4-251-259.pdf1.26 MB