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.

JARQ Submission and Editorial Policy / All Issues

All Issue

Conservation Technology Model Fit for Farmlands in a Micro-watershed on the Ethiopian Highlands

Kazuhisa KODA, Gebreyohannes GIRMAY, Tesfay BERIHU, JARQ:Japan Agricultural Research Quarterly. 57(4) , 269-279 (2023-10-01)

jarq57-4_269-279.pdf1.53 MB

Effect of RNAi-mediated Suppression of PGRP-LC Gene Expression on Mortality Rates in Brown Planthoppers (Nilaparvata lugens) Infected with Live Bacteria

Aki SAGISAKA, Ritsuko MURAKAMI, Kenji WATANABE, Hiromitsu TANAKA, JARQ:Japan Agricultural Research Quarterly. 57(4) , 281-287 (2023-10-01)

jarq57-4_281-287.pdf988.4 KB

Effects of Forage Corn Silage Preparation on Early-instar Larval Survivability and Egg Hatchability of Fall Armyworms (Spodoptera frugiperda)

Masayuki HAYASHI, Sachiyo SANADA-MORIMURA, Naoki KATO, Ikuo HATTORI, JARQ:Japan Agricultural Research Quarterly. 57(4) , 289-298 (2023-10-01)

jarq57-4_289-298.pdf827.45 KB

Spatial Sensitivity and Calibration of 10HS Soil Moisture Sensors in Converted Paddy Fields for Practical Use

Chika ZUKEMURA, Teruhito MIYAMOTO, Hiroshi OSARI, JARQ:Japan Agricultural Research Quarterly. 57(4) , 299-310 (2023-10-01)

jarq57-4_299-310.pdf1.98 MB

Assessing Prevalence and Antibiotic Resistance of Escherichia coli and Other Enterobacteriaceae Isolated from Cambodian Fermented Fish and Vegetables

Rithy CHRUN, Hasika MITH, Siveng MENG, Sreypov LONG, Pichpunleu BORN, Yasuhiro INATSU, JARQ:Japan Agricultural Research Quarterly. 57(4) , 311-320 (2023-10-01)

jarq57-4_311-320.pdf897.06 KB

The Role of Single Oral Dose of Excess Vitamin A and/or Vitamin E in Improving Ovarian Function Three Days Post-parturition in Primiparous Dairy Cows

Mari AOKI, JARQ:Japan Agricultural Research Quarterly. 57(4) , 321-328 (2023-10-01)

jarq57-4_321-328.pdf940.9 KB

Taper Equations for Evaluating Private Plantation Teak (Tectona grandis) in Thailand

Iwao NODA, Woraphun HIMMAPAN, Naoyuki FURUYA, Gaku HITSUMA, JARQ:Japan Agricultural Research Quarterly. 57(4) , 329-343 (2023-10-01)

jarq57-4_329-343.pdf5.93 MB

Relationship between Gill Raker Number and Early Growth of Pacific Bluefin Tuna Thunnus orientalis

Hiroshige TANAKA, Yosuke TANAKA, JARQ:Japan Agricultural Research Quarterly. 57(4) , 345-352 (2023-10-01)

jarq57-4_345-352.pdf928.36 KB

Hydrangea Diseases in Japan

Susumu NAGASHIMA, Motoaki TOJO, JARQ:Japan Agricultural Research Quarterly. 57(3) , 183-194 (2023-07-03)

jarq57-3_183-194.pdf1.67 MB

Citrus Viroids and Minor Citrus Viruses in Japan

Toru IWANAMI, JARQ:Japan Agricultural Research Quarterly. 57(3) , 195-204 (2023-07-03)

jarq57-3_195-204.pdf783.5 KB

Whole-genome Sequence Analysis to Confirm the Absence of Transgene in a Rice Line Made by Gene Targeting

Junichi MANO, Keita TSUKAHARA, Kazuto TAKASAKI, Satoshi FUTO, Ayako NISHIZAWA-YOKOI, Seiichi TOKI, Reona TAKABATAKE, Kazumi KITTA, JARQ:Japan Agricultural Research Quarterly. 57(3) , 205-215 (2023-07-03)

jarq57-3_205-215.pdf1.72 MB

Analysis of Scent Emission in Cut Flowers of Tulipa gesneriana L. ‘Niigata 13 go,’ Known as Koshiharuka

Kyutaro KISHIMOTO, Yusuke WATANABE, JARQ:Japan Agricultural Research Quarterly. 57(3) , 217-224 (2023-07-03)

jarq57-3_217-224.pdf6.45 MB

Effects of Vitamin C Supplementation to Bovine Peripheral Blood Mononuclear Cells on Antioxidant and Inflammatory Biomarker Status and Cell Viability with or without Lipopolysaccharide Stimulation

Konosuke OTOMARU, Takuro MIYAHARA, Hiroto SAITA, Moe IJIRI, Natsuko TSURUDOME, Yosuke MAEDA, JARQ:Japan Agricultural Research Quarterly. 57(3) , 225-230 (2023-07-03)

jarq57-3_225-230.pdf917.31 KB

Genetic Dissection of Litter-size Quantitative Trait Loci Located on Murine Chromosome 7

Jun-ichi SUTO, JARQ:Japan Agricultural Research Quarterly. 57(3) , 231-239 (2023-07-03)

jarq57-3_231-239.pdf1.67 MB

Reproductive Cycle of the Edible Oyster Crassostrea belcheri in the Myeik Coastal Area of Southern Myanmar

Khin-May-Chit-Maung, Masaya TOYOKAWA, Hajime SAITO, Tatsuya YURIMOTO, JARQ:Japan Agricultural Research Quarterly. 57(3) , 241-249 (2023-07-03)

jarq57-3_241-249.pdf4.7 MB

Development, Characterization, and Distribution of New, High-yielding, and Highly Palatable Japanese Rice Cultivars “Tsukiakari” and “Niji-no-kirameki”

Tsutomu ISHIMARU, Ichiro NAGAOKA, Daryong KIM, JARQ:Japan Agricultural Research Quarterly. 57(2) , 89-97 (2023-04-01)

jarq57-2_89-97.pdf720.29 KB

Major Citrus Viruses in Japan

Toru IWANAMI, JARQ:Japan Agricultural Research Quarterly. 57(2) , 99-110 (2023-04-01)

jarq57-2_99-110.pdf370.88 KB

Genomic and Molecular Epidemiological Analyses and Antimicrobial Susceptibility of Bovine Mycoplasmas in Japan

Eiji HATA, JARQ:Japan Agricultural Research Quarterly. 57(2) , 111-122 (2023-04-01)

jarq57-2_111-122.pdf1.35 MB

An Efficient Rearing Method for the Fall Armyworm, Spodoptera frugiperda, under Crowded Conditions

Mika MURATA, Hiroyuki IIDA, Gaku AKIDUKI, Takayuki MITSUNAGA, JARQ:Japan Agricultural Research Quarterly. 57(2) , 123-130 (2023-04-01)

jarq57-2_123-130.pdf330.1 KB

In-situ Simple Rapid Calibration Method for the EC-5 Moisture Sensor

Hidetoshi MOCHIZUKI, Iwao SAKAGUCHI, JARQ:Japan Agricultural Research Quarterly. 57(2) , 131-137 (2023-04-01)

jarq57-2_131-137.pdf272.37 KB

Characterization of Leaf Transcriptome in a Tropical Tree Species, Shorea curtisii, over a Flowering Season

Ahmad Husaini SUHAIMI, Masaki J. KOBAYASHI, Akiko SATAKE, Soon Leong LEE, Norwati MUHAMMAD, Tatsuya OTANI, Toshiaki KONDO, Naoki TANI, Suat Hui YEOH, JARQ:Japan Agricultural Research Quarterly. 57(2) , 139-144 (2023-04-01)

jarq57-2_139-144.pdf247.31 KB

Summer Habitat and Fishing Ground of Ommastrephes bartramii Related with the North Pacific Subarctic Frontal Zone Using Long-term Field Research Data

Yoshiki KATO, Toshiaki SHITAMITSU, Makoto OKAZAKI, Hideyuki YAMASHITA, JARQ:Japan Agricultural Research Quarterly. 57(2) , 145-152 (2023-04-01)

jarq57-2_145-152.pdf944.36 KB

Estimation of Preferred Habitats and Total Catch Amount of the Round Scad Decapterus maruadsi and Five Other Scad Species in the East China Sea and Sea of Japan

Haruhiko HINO, Hiroyuki KUROTA, Soyoka MUKO, Seiji OHSHIMO, JARQ:Japan Agricultural Research Quarterly. 57(2) , 153-163 (2023-04-01)

jarq57-2_153-163.pdf1.99 MB

Application of the Adjusted Sharpness Index and Estimated Condition Factor to Compare Growth Conditions of the Blood Cockle, Tegillarca granosa, in Penang, Perak, and Selangor, in Malaysia

Hajime SAITO, Toru SHIMODA, Faizul MOHD KASSIM, JARQ:Japan Agricultural Research Quarterly. 57(2) , 165-174 (2023-04-01)

jarq57-2_165-174.pdf411.41 KB

Age, Growth and Reproductive Cycle of the Jack Mackerel Trachurus japonicus in the Southwestern Sea of Japan

Mari YODA, Syuuichi TANAKA, Motomitsu TAKAHASHI, JARQ:Japan Agricultural Research Quarterly. 57(2) , 175-182 (2023-04-01)

jarq57-2_175-182.pdf695.55 KB

Research and Control Techniques for Volunteer Rice

Youichi OHDAIRA, JARQ:Japan Agricultural Research Quarterly. 57(1) , 1-7 (2023-01-06)

jarq57-1_1-7.pdf2.01 MB

Development of Temporary and Seasonal Agricultural Labor Forces in Japan

Wakaba MAGAKI, JARQ:Japan Agricultural Research Quarterly. 57(1) , 9-12 (2023-01-06)

jarq57-1_9-12.pdf617.44 KB

Evaluation of the Relationship Between Growth Parameters for Spring-sown Onion Cultivation in Tohoku, Japan

Chisato YAMAGUCHI, Takehiko YAMAMOTO, Daisuke YAMAUCHI, Takato MURO, JARQ:Japan Agricultural Research Quarterly. 57(1) , 13-20 (2023-01-06)

jarq57-1_13-20.pdf1.14 MB

Diversity of Traits Related to Panicle Architecture and Grain Size in Cambodian Rice Germplasm and Newly Developed Mini-core Collection

Hiroki SAITO, Chhourn ORN, Vathany THUN, Makara OUK, Asami TOMITA, Kazuhiro SASAKI, Mitsuhiro OBARA, Nobuya KOBAYASHI, Yoshimichi FUKUTA, JARQ:Japan Agricultural Research Quarterly. 57(1) , 21-35 (2023-01-06)

jarq57-1_21-35.pdf1.43 MB