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

Analysis of the Interaction between Surface Water and Groundwater Using Radon-222
Hiromasa HAMADA, JARQ:Japan Agricultural Research Quarterly. 33(4) , 261-265 (1999-10-01)
33-4-261-265.pdf725.54 KB

Effects of Medium Conditions on Adventitious Bud Formation in Immature Mulberry Leaves
Hiroaki YAMANOUCHI, Akio KOYAMA, Hiroaki MACHII, JARQ:Japan Agricultural Research Quarterly. 33(4) , 267-274 (1999-10-01)
33-4-267-274.pdf1.18 MB

Development of an Automatic Steering System for Compact Tractor Used in Mulberry Fields
Toru KOBAYASHI, JARQ:Japan Agricultural Research Quarterly. 33(4) , 275-282 (1999-10-01)
33-4-275-282.pdf1.02 MB

Harmful Effect of Dinoflagellate Heterocapsa circularisquama on Shellfish Aquaculture in Japan
Yukihiko MATSUYAMA, JARQ:Japan Agricultural Research Quarterly. 33(4) , 283-293 (1999-10-01)
33-4-283-293.pdf1.85 MB

Microbial Conversion of Macroalgae into a Detrital Hatchery Diet
Motoharu UCHIDA, JARQ:Japan Agricultural Research Quarterly. 33(4) , 295-301 (1999-10-01)
33-4-295-301.pdf1.06 MB

Distribution of Antimutagenic Components in Colored Sweetpotatoes
Makoto YOSHIMOTO, Shigenori OKUNO, Tooru KUMAGAI, Masaru YOSHINAGA, Osamu YAMAKAWA, JARQ:Japan Agricultural Research Quarterly. 33(3) , 143-148 (1999-07-01)
33-3-143-148.pdf1.05 MB

Discrimination of Basidiomycete Species and Strains by Random Amplified Polymorphic DNA (RAPD) Analysis
Yasuhiro ITO, Sonoe O. YANAGI, JARQ:Japan Agricultural Research Quarterly. 33(3) , 149-154 (1999-07-01)
33-3-149-154.pdf1.05 MB

Determination of Optimum Spraying Time for Chemical Control of Mulberry Scale, Pseudaulacaspis pentagona (Targioni)(Hemiptera: Diaspididae) in Tea Fields
Akio TATARA, JARQ:Japan Agricultural Research Quarterly. 33(3) , 155-161 (1999-07-01)
33-3-155-161.pdf1.11 MB

Effects of Various Radiant Sources on Plant Growth (Part 1)
Shinji TAZAWA, JARQ:Japan Agricultural Research Quarterly. 33(3) , 163-176 (1999-07-01)
33-3-163-176.pdf2.03 MB

Effects of Various Radiant Sources on Plant Growth (Part 2)
Shinji TAZAWA, JARQ:Japan Agricultural Research Quarterly. 33(3) , 177-183 (1999-07-01)
33-3-177-183.pdf1015.56 KB

Development of Respiration Models for Modified Atmosphere Packaging of Horticultural Commodities
Yoshio MAKINO, JARQ:Japan Agricultural Research Quarterly. 33(3) , 185-192 (1999-07-01)
33-3-185-192.pdf1.33 MB

Helminths and Helminthiosis of Pigs in the Mekong Delta, Vietnam with Special Reference to Ascariosis and Fasciolopsis buski Infection
Shinobu YOSHIHARA, Nguyen Phuoc HUNG, Nguyen Huu HUNG, Chau Ba LOC, JARQ:Japan Agricultural Research Quarterly. 33(3) , 193-199 (1999-07-01)
33-3-193-199.pdf1.24 MB

Impact of Fruit Tree Incorporation into Farming Systems on Employment and Income in the Hill Region of Nepal
Shigeki YOKOYAMA, Devendra GAUCHAN, JARQ:Japan Agricultural Research Quarterly. 33(3) , 201-206 (1999-07-01)
33-3-201-206.pdf1.06 MB

Impact of Depreciated Currency on Agriculture in Thailand
Minoru TADA, JARQ:Japan Agricultural Research Quarterly. 33(3) , 207-213 (1999-07-01)
33-3-207-213.pdf1.14 MB

Preliminary Report on Stable Isotope Ratio Analysis for Samples from Matang Mangrove Brackish Water Ecosystems
Shigeo HAYASE, Tadafumi ICHIKAWA, Katsuhisa TANAKA, JARQ:Japan Agricultural Research Quarterly. 33(3) , 215-221 (1999-07-01)
33-3-215-221.pdf1.08 MB

Use of lacZ and gusA Reporter Genes to Trace the Infection Process of Nitrogen-Fixing Bacteria
Shoichiro AKAO, Yasuo MINAKAWA, Hiromi TAKI, M.K.KHAN, Ken-Ichi YUHASHI, Yasuji NAKAYAMA, Constancio A. ASIS Jr, Vladimir CHEBOTAR, Ui-Gum KANG, Kiwamu MINAMISAWA, Robert W. RIDGE, JARQ:Japan Agricultural Research Quarterly. 33(2) , 77-84 (1999-04-01)
33-2-077-084.pdf1.4 MB

Use of Soil Animals as Bioindicators of Various Kinds of Soil Management in Northern Japan
Yoshinari ENAMI, Hiroyoshi SHIRAISHI, Yoshio NAKAMURA, JARQ:Japan Agricultural Research Quarterly. 33(2) , 85-89 (1999-04-01)
33-2-085-089.pdf894.7 KB

Evaluation of Soil Fertility Status of Lowland Areas in the Philippines
Kenzo MIURA, Rodrigo B. BADAYOS, JARQ:Japan Agricultural Research Quarterly. 33(2) , 91-96 (1999-04-01)
33-2-091-096.pdf1.07 MB

Operation of a Diesel Engine Using Unrefined Rapeseed Oil as Fuel
Chiyuki TOGASHI, Jun-ichi KAMIDE, JARQ:Japan Agricultural Research Quarterly. 33(2) , 97-103 (1999-04-01)
33-2-097-103.pdf1.13 MB

Estimation of Flowering Date and Temperature Characteristics of Fruit Trees by DTS Method
Sukeyuki ONO, Takamitsu KONNO, JARQ:Japan Agricultural Research Quarterly. 33(2) , 105-108 (1999-04-01)
33-2-105-108.pdf723.07 KB

Mechanism of Off-Flavor Production in Brassica Vegetables under Anaerobic Conditions
Kazuhiro DAN, Masayasu NAGATA, Ichiji YAMASHITA, JARQ:Japan Agricultural Research Quarterly. 33(2) , 109-114 (1999-04-01)
33-2-109-114.pdf1.06 MB

Development of Silk Yarns for Knitted Fabrics
Hiroshi KATO, Tamako HATA, JARQ:Japan Agricultural Research Quarterly. 33(2) , 115-124 (1999-04-01)
33-2-115-124.pdf1.81 MB

Screening of Thermophilic Lactic Acid Bacteria Producing Bacteriocins in the Tropics
Sadahiro OHMOMO, Miho KOBAYASHI, Mizuo YAJIMA, Puangpen SUYANANDANA, Paipan SUDKA, Praphaisri BOMCHAI, JARQ:Japan Agricultural Research Quarterly. 33(2) , 125-131 (1999-04-01)
33-2-125-131.pdf1.15 MB

Cloning and Identification of the Lactococcin A and M Gene Cluster from Lactococcus lactis subsp. Lactis biovar diacetylactis DRC1
Yasuhito FUJITA, Takashi OKAMOTO, JARQ:Japan Agricultural Research Quarterly. 33(2) , 133-137 (1999-04-01)
33-2-133-137.pdf858.5 KB

Pathology of Acute Necrotizing Mastitis Caused by Staphylococcus aureus in a Dairy Cow
Tomoyuki SHIBAHARA, Kikuyasu NAKAMURA, JARQ:Japan Agricultural Research Quarterly. 33(2) , 139-142 (1999-04-01)
33-2-139-142.pdf888.39 KB

Distribution and RFLP Mapping of Complementary Genes Causing Hybrid Breakdown in Asian Cultivated Rice, Oryza sativa L.
Kazutoshi OKUNO, Shuichi FUKUOKA, JARQ:Japan Agricultural Research Quarterly. 33(1) , 1-6 (1999-01-01)
33-1-001-006.pdf1000.34 KB

Groundwater Pollution by Cattle Slurry Stored in Unlined Lagoon
Kenji KANAZAWA, Naomichi MIYAJI, Takashi KUSABA, Kazuaki BAN, Yoshihiko HAYAKAWA, Ryusuke HATANO, JARQ:Japan Agricultural Research Quarterly. 33(1) , 7-13 (1999-01-01)
33-1-007-013.pdf1.01 MB

Direct Acquisition of Organic Nitrogen by Crops
Makoto YAMAGATA, Noriharu AE, JARQ:Japan Agricultural Research Quarterly. 33(1) , 15-21 (1999-01-01)
33-1-015-021.pdf996.5 KB

Papaya Ring Spot, Banana Bunchy Top, and Citrus Greening in the Asia and Pacific Region : Occurrence and Control Strategy
Keizi KIRITANI, Hong-Ji SU, JARQ:Japan Agricultural Research Quarterly. 33(1) , 23-30 (1999-01-01)
33-1-023-030.pdf1.41 MB

Raising and Transplanting Technology for Long Mat with Hydroponically Grown Rice Seedlings
Kohei TASAKA, JARQ:Japan Agricultural Research Quarterly. 33(1) , 31-37 (1999-01-01)
33-1-031-037.pdf1 MB