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
Improving the Livelihood of Livestock and Farmers and Public Health in Developing Countries through the Provision of Solutions for the Various Risks They Face
Kohei MAKITA, Munenobu IKEGAMI, Tomoya MATSUMOTO, JARQ:Japan Agricultural Research Quarterly. 55(Special Issue) , 533-541 (2021-12-01)
jarq55-5_533-541.pdf344.62 KB
Climate Change and Social Forestry: An Overview of CIFOR Research on Enhancing Resilience in Boreal and Tropical Forest Landscape
Daisuke NAITO, Moira MOELIONO, Vladimir CHAKOV, Victoria KUPTSOVA, Kusin KITSO, Walter LINTANGAH, Ricky MARTIN, Nina YULIANTI, JARQ:Japan Agricultural Research Quarterly. 55(Special Issue) , 543-552 (2021-12-01)
jarq55-5_543-552.pdf345.55 KB
Fish in Sustainable Food Systems of the 21st Century: Role of WorldFish Research on Food and Nutrition Security, Gender Equity, and Natural Resource Conservation
Yumiko KURA, Nozomi KAWARAZUKA, JARQ:Japan Agricultural Research Quarterly. 55(Special Issue) , 553-558 (2021-12-01)
jarq55-5_553-558.pdf376.97 KB
Agroforestry System Research: Identification of Land Use Change Drivers and Scaling Up of Trees on Farms for Transforming Livelihoods and Landscapes
Miyuki IIYAMA, Cathy WATSON, Motoe MIYAMOTO, JARQ:Japan Agricultural Research Quarterly. 55(Special Issue) , 559-564 (2021-12-01)
jarq55-5_559-564.pdf306.08 KB
Reference Genome Sequencing and Advances in Genomic Resources in Common Wheat–Chromosome 6B Project in Japan
Fuminori KOBAYASHI, Tsuyoshi TANAKA, Hiroyuki KANAMORI, Jianzhong WU, Hirokazu HANDA, JARQ:Japan Agricultural Research Quarterly. 55(4) , 285-294 (2021-10-01)
jarq55-4_285-294.pdf734.57 KB
Technology Development for Stable Agricultural Production under Adverse Environments and Changing Climate Conditions
Kazuo NAKASHIMA, Takeshi URAO, Donghe XU, Shotaro ANDO, Masayasu KATO, JARQ:Japan Agricultural Research Quarterly. 55(4) , 295-305 (2021-10-01)
jarq55-4_295-305.pdf1016.41 KB
A Trial for the Identification of Brown Planthopper (Nilaparvata lugens Stål) Resistance Alleles in Two Rice Lines, Norin-PL3 and Norin-PL4, Using Next-generation Sequencing and Simple Graphical Genotyping Methods
Yukina NAKATSUJI, Shuichi FUKUOKA, Yuichi KATAYOSE, Tatsumi MIZUBAYASHI, Hideki SEZUTSU, Tetsuya KOBAYASHI, Yoshinori HATAKEYAMA, Yasumori TAMURA, JARQ:Japan Agricultural Research Quarterly. 55(4) , 307-322 (2021-10-01)
jarq55-4_307-322.pdf6.14 MB
Diurnal Dynamics of Nectar Secretion in Cucurbita maxima Duch: Implications for Effective Pollen Transfer by Japanese Wild Pollinators
Shoko NAKAMURA, Hisatomo TAKI, Yasuo KONNO, JARQ:Japan Agricultural Research Quarterly. 55(4) , 323-331 (2021-10-01)
jarq55-4_323-331.pdf935.54 KB
General Utilities for Genotyping Study (GUGS): A Comprehensive Application in Genotype and Sequence Data Manipulation
Tokurou SHIMIZU, JARQ:Japan Agricultural Research Quarterly. 55(4) , 333-339 (2021-10-01)
jarq55-4_333-339.pdf1.47 MB
Distribution of Pink-pigmented Facultative Methylotrophs Isolated from the Leaves of Potato Grown in Different Regions of Japan
Nobutaka SOMEYA, Masaharu KUBOTA, Yusuke UNNO, Tomohiro MOROHOSHI, JARQ:Japan Agricultural Research Quarterly. 55(4) , 341-345 (2021-10-01)
jarq55-4_341-345.pdf934.05 KB
Investigation of Total Polyphenol Content, Antioxidant Activity, and Carbohydrate-hydrolyzing Enzyme Inhibition of Yacon Leaves among Four Domestic Cultivars and a Peru Line for over Four Years
Yuto UEDA, Yasushi MATSUDA, Tatsuro MURATA, Yoshikazu HOSHI, Kiyotaka KABATA, Masateru ONO, Hideki KINOSHITA, Keiji IGOSHI, Shin YASUDA, JARQ:Japan Agricultural Research Quarterly. 55(4) , 347-358 (2021-10-01)
jarq55-4_347-358.pdf766.91 KB
Comparison of Carotenoid Accumulation and Abscisic Acid Content in Fruit-color Altered Mutant and Original Types in Citrus
Naoko NAKAJIMA, Yoshinori IKOMA, Hikaru MATSUMOTO, Masaya KATO, Takeshi KUNIGA, JARQ:Japan Agricultural Research Quarterly. 55(4) , 359-366 (2021-10-01)
jarq55-4_359-366.pdf1.43 MB
Effects of Biochar on the Growth of Vachellia etbaica and Faidherbia albida Planted in Tigray, Northern Ethiopia
Masazumi KAYAMA, Buruh ABEBE, Emiru BIRHANE, JARQ:Japan Agricultural Research Quarterly. 55(4) , 367-378 (2021-10-01)
jarq55-4_367-378.pdf1.02 MB
Effects of Topography, Soil Organic Matter, and Chemical Properties on the Growth of Teak (Tectona Grandis) Plantations in Northeast Thailand
Iwao NODA, Woraphun HIMMAPAN, Tosporn VACHARANGKURA, Somsak SUKCHAN, Wilawan WICHIENNOPPARAT, Naoyuki FURUYA, JARQ:Japan Agricultural Research Quarterly. 55(4) , 379-390 (2021-10-01)
jarq55-4_379-390.pdf1.06 MB
Optimization Process of Plant Growth Environment for Improving Content Compounds Using Physiological and Genetic Information in a Closed-type Plant Factory
Yuki YONEDA, JARQ:Japan Agricultural Research Quarterly. 55(3) , 201-208 (2021-07-01)
jarq55-3_201-208.pdf1.12 MB
Factors Explaining Differences in Yield Response to High Nitrogen Fertilization among Rice Varieties under Tropical Highland Conditions in Central Kenya
Hiroaki SAMEJIMA, Keisuke KATSURA, Mayumi KIKUTA, Symon Mugo NJINJU, John Munji KIMANI, Akira YAMAUCHI, Daigo MAKIHARA, JARQ:Japan Agricultural Research Quarterly. 55(3) , 209-216 (2021-07-01)
jarq55-3_209-216.pdf800.44 KB
Climatic Factors Related to Low Rice (Oryza sativa L.) Yield in the Wet Season under Double Cropping in the Mekong Delta, Vietnam
Motohiko KONDO, Yoshiko IIZUMI, Takeshi WATANABE, Luu Hong MAN, Nguyen Kim THU, Vu Ngọc Minh TAM, Ho Nguyen Hoang PHUC, Nguyen Thi Ngọc HAN, Duong Hoang SON, Nguyen Huu CHIEM, JARQ:Japan Agricultural Research Quarterly. 55(3) , 217-224 (2021-07-01)
jarq55-3_217-224.pdf639.43 KB
Chemical and Microbiological Evaluation of Vermicompost Made from School Food Waste in Japan
Shumpei HASHIMOTO, Mai FURUYA, Xiaodong YOU, Genki WANIBUCHI, Hayato TOKUMOTO, Motoaki TOJO, Kumpei SHIRAGAKI, JARQ:Japan Agricultural Research Quarterly. 55(3) , 225-232 (2021-07-01)
jarq55-3_225-232.pdf1011.53 KB
Nitrogen Mineralization from Flowering- and Maturity-stage Green Manures under Flooded Conditions after Different Upland Periods
Kyi Mon Mon KO, Yasumaru HIRAI, Takeo YAMAKAWA, Eiji INOUE, Takashi OKAYASU, Muneshi MITSUOKA, JARQ:Japan Agricultural Research Quarterly. 55(3) , 233-244 (2021-07-01)
jarq55-3_233-244.pdf1.27 MB
Designing a Polyurethane-based Husker Roll for Long-grain Rice Using a Finite Element Model
Tadashi YOSHIHASHI, Yuki ABE, Nariaki IWASAKI, Hiroyuki SAKANAKA, Masatoshi FUJINAKA, Ryuichi KIDO, JARQ:Japan Agricultural Research Quarterly. 55(3) , 245-251 (2021-07-01)
jarq55-3_245-251.pdf877.57 KB
Basic Quality Management for Improving the Business Stability of Small Food Enterprises in Southeast Asia: The Case of a Fermented Rice Noodle Company in Thailand Preventing Noodle Liquefaction
Eiichi KUSANO, Junichiro MARUI, Tadashi YOSHIHASHI, JARQ:Japan Agricultural Research Quarterly. 55(3) , 253-264 (2021-07-01)
jarq55-3_253-264.pdf782.49 KB
Effect of Saccharomyces cerevisiae Fermentation Product on Ruminal Fermentation, Blood Metabolites, and Milk Production in Dairy Cows
Naoto AOKI, Zhang YANLI, Syuhei KANDA, Yuzo KUROKAWA, Halima SULTANA, Hisao ITABASHI, JARQ:Japan Agricultural Research Quarterly. 55(3) , 265-271 (2021-07-01)
jarq55-3_265-271.pdf569 KB
Effect of Leaves on the Regulation of Internode Elongation in a Tropical Evergreen Tree, Shorea leprosula
Masaki J. KOBAYASHI, Kevin Kit Siong NG, Soon Leong LEE, Norwati MUHAMMAD, Naoki TANI, JARQ:Japan Agricultural Research Quarterly. 55(3) , 273-283 (2021-07-01)
jarq55-3_273-283.pdf1.56 MB
Dry Direct-seeding Rice Cultivation Method Incorporating a Water-leakage Prevention Process Using a Vibratory Roller
Keiko NAKANO, Koichiro FUKAMI, Hideki OHDAN, JARQ:Japan Agricultural Research Quarterly. 55(2) , 107-116 (2021-04-01)
jarq55-2_107-116.pdf3.09 MB
Development of Cooling Techniques for Small-scale Protected Horticulture in Mountainous Areas in Japan
Ryosuke YAMANAKA, Hiroki KAWASHIMA, JARQ:Japan Agricultural Research Quarterly. 55(2) , 117-125 (2021-04-01)
jarq55-2_117-125.pdf6.95 MB
Relationship between Resistance to Rice necrosis mosaic virus and the Expression Levels of Rice RNA-dependent RNA polymerase 6 (OsRDR6) in Various Rice Cultivars
Sopan G. WAGH, Abhijit A. DASPUTE, Shamim Md. AKHTER, Sachin A. BHOR, Kappei KOBAYASHI, Takashi YAENO, Masamichi NISHIGUCHI, JARQ:Japan Agricultural Research Quarterly. 55(2) , 127-135 (2021-04-01)
jarq55-2_127-135.pdf1.05 MB
Analysis of Salinity Behavior in Hakata Bay after Heavy Rainfall Using a Three-dimensional σ-Coordinate Model
Akihiro FUKUDA, Toshinori TABATA, Kazuaki HIRAMATSU, Masayoshi HARADA, JARQ:Japan Agricultural Research Quarterly. 55(2) , 137-146 (2021-04-01)
jarq55-2_137-146.pdf1.37 MB
Flood Hazard Assessment of Residential Areas Outside the Protected Area of the Red River Dike System in Hanoi, Vietnam
Sai Hong ANH, Toshinori TABATA, Kazuaki HIRAMATSU, Masayoshi HARADA, JARQ:Japan Agricultural Research Quarterly. 55(2) , 147-160 (2021-04-01)
jarq55-2_147-160.pdf4.69 MB
Impact of Public Agricultural Investments on Global Indica and Japonica Rice Markets under Climate Change
Tatsuji KOIZUMI, Gen FURUHASHI, JARQ:Japan Agricultural Research Quarterly. 55(2) , 161-175 (2021-04-01)
jarq55-2_161-175.pdf276.42 KB
Long-term Hydrological Observations in a Lowland Dry Evergreen Forest Catchment Area of the Lower Mekong River, Cambodia
Naoki KABEYA, Akira SHIMIZU, Takanori SHIMIZU, Shin’ichi IIDA, Koji TAMAI, Asako MIYAMOTO, Sophal CHANN, Makoto ARAKI, Yasuhiro OHNUKI, JARQ:Japan Agricultural Research Quarterly. 55(2) , 177-190 (2021-04-01)
jarq55-2_177-190.pdf2.47 MB