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

Development and Utilization of Narrow-Ditch Type Pasture Renovator
YAMANA Nobuki, KAMEI Masahiro, HIRATA Akira, HAYASHI Kazunobu, TAKEUCHI Yoshikuni, HIROKANE Nobuo, JARQ:Japan Agricultural Research Quarterly. 37(1) , 15-19 (2003-01-01)
37-01-03.pdf383.65 KB

Comparison of Meristic Variations and Bone Abnormalities between Wild and Laboratory-Reared Red Sea Bream
MATSUOKA Masanobu, JARQ:Japan Agricultural Research Quarterly. 37(1) , 21-30 (2003-01-01)
37-01-04.pdf977.04 KB

Phenotypes and Genotypes Related to Tea Gray Blight Disease Resistance in the Genetic Resources of Tea in Japan
TAKEDA Yoshiyuki, JARQ:Japan Agricultural Research Quarterly. 37(1) , 31-35 (2003-01-01)
37-01-05.pdf342.24 KB

Development of a Comprehensive Series of Technologies for Lowland Cropping Systems in Northeast Thailand
KABAKI Nobuyuki, TAMURA Haruo, FUJIMORI Shinsaku, MORITA Hirohiko, URAIPONG Bowpit, ARROMRATANA Uthai, NAGARA Tawachai Na, JARQ:Japan Agricultural Research Quarterly. 37(1) , 37-44 (2003-01-01)
37-01-06.pdf651.71 KB

Nitrogen Fixation and Utilization for Green Manure of Common Wild Legume Narrowleaf Vetch (Vicia angustifolia L.)
CHO Young-Son, MINETA Takuya, HIDAKA Kazumasa, JARQ:Japan Agricultural Research Quarterly. 37(1) , 45-51 (2003-01-01)
37-01-07.pdf313.47 KB

Molecular Characterization of a Lactococcal Plasmid Reducing the Growth Rate of Host Cells
KOBAYASHI Miho, NOMURA Masaru, FUJITA Yasuhito, OHMOMO Sadahiro, OKAMOTO Takashi, JARQ:Japan Agricultural Research Quarterly. 37(1) , 53-57 (2003-01-01)
37-01-08.pdf177.28 KB

Prevalence of Pathogenic Escherichia coli in a Swine Breeding Environment in Can Tho Province, Vietnam
KOBAYASHI Hideki, KHAI Ly Thi Lien, PHAN Tran Thi, YAMASAKI Seishi, TANIGUCHI Toshiaki, JARQ:Japan Agricultural Research Quarterly. 37(1) , 59-63 (2003-01-01)
37-01-09.pdf202.61 KB

Development of Kenaf Harvesting Technology Using a Modified Sugarcane Harvester
KOBAYASHI Yuichi, OTSUKA Kanji, TANIWAKI Ken, SUGIMOTO Mitsuho, KOBAYASHI Kyo, JARQ:Japan Agricultural Research Quarterly. 37(1) , 65-69 (2003-01-01)
37-01-10.pdf352.33 KB

Seed and Pollen Parents Affect the Weight of F1 Seeds and the Number of Days until Emergence in Tea
TANAKA Junichi, KURIHARA Daisuke, YAMAGUCHI Satoshi, JARQ:Japan Agricultural Research Quarterly. 36(4) , 189-193 (2002-10-01)
36-04-01.pdf243.35 KB

Estimation of Nutrient Elution and Removal on Sediment Surface of Clayey Canal Based on Hydraulic Model Experiments
SHIRATANI Eisaku, SHIOFUKU Teruo, KUBOTA Tomijiro, YOSHINAGA Ikuo, HASEBE Hitoshi, JARQ:Japan Agricultural Research Quarterly. 36(4) , 195-200 (2002-10-01)
36-04-02.pdf371.53 KB

Development of a New Fishway for Various Fish Species and Cost Reduction
TSUNESUMI Naoto, JARQ:Japan Agricultural Research Quarterly. 36(4) , 201-209 (2002-10-01)
36-04-03.pdf641.42 KB

Perspectives for Fish Protection in Japanese Paddy Field Irrigation Systems
HATA Kenji, JARQ:Japan Agricultural Research Quarterly. 36(4) , 211-218 (2002-10-01)
36-04-04.pdf1002 KB

Field Experiment on the Migration of Fishes to a Paddy Field with a Small Fishway
HATA Kenji, JARQ:Japan Agricultural Research Quarterly. 36(4) , 219-225 (2002-10-01)
36-04-05.pdf1.17 MB

Silage-Making and Recent Trend of Dairy Farming in Thailand
OHMOMO Sadahiro, NITISINPRASART Sunee, HIRANPRADIT Supanit, JARQ:Japan Agricultural Research Quarterly. 36(4) , 227-234 (2002-10-01)
36-04-06.pdf118.3 KB

Seedling Appearance, Survival and Flowering of Trifolium pratense in a Cutting Meadow
SAKANOUE Seiichi, JARQ:Japan Agricultural Research Quarterly. 36(4) , 235-241 (2002-10-01)
36-04-07.pdf150.5 KB

Agrobacterium-Mediated Transformation in Liliaceous Ornamental Plants
SUZUKI Sakae, NAKANO Masaru, JARQ:Japan Agricultural Research Quarterly. 36(3) , 119-127 (2002-07-01)
36-03-01.pdf724.2 KB

Preparation of Microprotoplasts for Partial Genome Transfer via Microprotoplast Fusion in Liliaceous Ornamental Plants
SAITO Hiroyuki, NAKANO Masaru, JARQ:Japan Agricultural Research Quarterly. 36(3) , 129-135 (2002-07-01)
36-03-02.pdf1.08 MB

Treading Resistance and Breeding of Guineagrass Suitable for Rollbale
MATSUOKA Hidemichi, SANADA Yasuharu, SATO Hiroyasu, KOBASHI Ken, JARQ:Japan Agricultural Research Quarterly. 36(3) , 137-142 (2002-07-01)
36-03-03.pdf1.46 MB

Genetic Analysis of Tea Gray Blight Resistance in Tea Plants
TAKEDA Yoshiyuki, JARQ:Japan Agricultural Research Quarterly. 36(3) , 143-150 (2002-07-01)
36-03-04.pdf279.62 KB

Water Pollution of Irrigation Ponds in Kagawa Prefecture and Possible Alleviation by Increasing the Amount of Water
UCHIDA Haruo, INOUE Hisayoshi, HOSOKAWA Masatoshi, JARQ:Japan Agricultural Research Quarterly. 36(3) , 151-156 (2002-07-01)
36-03-05.pdf215.53 KB

Soil Loss Estimation on a Local Scale for Soil Conservation Planning
SHIONO Takahiro, KAMIMURA Ken-ichiro, OKUSHIMA Shuji, FUKUMOTO Masato, JARQ:Japan Agricultural Research Quarterly. 36(3) , 157-161 (2002-07-01)
36-03-06.pdf1.35 MB

Robotic Harvesting System for Eggplants
HAYASHI Shigehiko, GANNO Katsunobu, ISHII Yukitsugu, TANAKA Itsuo, JARQ:Japan Agricultural Research Quarterly. 36(3) , 163-168 (2002-07-01)
36-03-07.pdf1.74 MB

Characterization of Bacillus subtilis Strains Isolated from Fermented Soybean Foods in Southeast Asia: Comparison with B. subtilis (natto) Starter Strains
INATSU Yasuhiro, KIMURA Keitarou, ITOH Yoshifumi, JARQ:Japan Agricultural Research Quarterly. 36(3) , 169-175 (2002-07-01)
36-03-08.pdf201.17 KB

New Method of Producing Diploid Seedless Watermelon Fruit
SUGIYAMA Keita, MORISHITA Masami, JARQ:Japan Agricultural Research Quarterly. 36(3) , 177-182 (2002-07-01)
36-03-09.pdf689.8 KB

Effect of Tree Canopy on the Growth of Zoysia japonica Steud. under a Deciduous Forest with Different Tree Densities
OTANI Ichirou, YAMAMOTO Naoyuki, ENTSU Shigeki, JARQ:Japan Agricultural Research Quarterly. 36(3) , 183-187 (2002-07-01)
36-03-10.pdf52.06 KB

Silage and Microbial Performance, Old Story but New Problems
OHMOMO Sadahiro, TANAKA Osamu, KITAMOTO Hiroko K., CAI Yimin, JARQ:Japan Agricultural Research Quarterly. 36(2) , 59-71 (2002-04-01)
36-02-01.pdf344.01 KB

Comparison of the Three-Temperature Model and Conventional Models for Estimating Transpiration
QIU Guo Yu, MIYAMOTO Koichi, SASE Sadanori, GAO Yong, SHI Peijun, YANO Tomohisa, JARQ:Japan Agricultural Research Quarterly. 36(2) , 73-82 (2002-04-01)
36-02-02.pdf437.98 KB

Sequence Analysis and GTP-Binding Ability of the Minor Core Protein P5 of Rice Gall Dwarf Virus
ICHIMI Kenzaburo, KIKUCHI Akira, MORIYASU Yusuke, ZHONG Boxiong, HAGIWARA Kyoji, KAMIUNTEN Hiroshi, OMURA Toshihiro, JARQ:Japan Agricultural Research Quarterly. 36(2) , 83-87 (2002-04-01)
36-02-03.pdf190.05 KB

Ecological Characteristics and Biological Control of Mulberry Anthracnose
YOSHIDA Shigenobu, SHIRATA Akira, HIRADATE Syuntaro, JARQ:Japan Agricultural Research Quarterly. 36(2) , 89-95 (2002-04-01)
36-02-04.pdf296.23 KB

Specific Amplification of Microsporidian DNA Fragments Using Multiprimer PCR
HATAKEYAMA Yoshinori, HAYASAKA Shoji, JARQ:Japan Agricultural Research Quarterly. 36(2) , 97-102 (2002-04-01)
36-02-05.pdf167 KB