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

Occurrence Evaluation of Aflatoxigenic Aspergilli in Thai Corn Using Dichlorvos-ammonia and Whole-agar Extraction Methods

Kanokporn POUNGPONG, Thanapoom MANEEBOON, Wichittra ARAI, Koji AOYAMA, Tomohiro FURUKAWA, Setsuko TODORIKI, Kimiko YABE, Chaiyapoom BUNCHASAK, Masayo KUSHIRO, JARQ:Japan Agricultural Research Quarterly. 58(2) , 83-91 (2024-04-01)

jarq58-2_83-91.pdf6.22 MB

Impact of Fertilizer Price and Subsidy on the Global Wheat Market

Tatsuji KOIZUMI, JARQ:Japan Agricultural Research Quarterly. 58(2) , 93-111 (2024-04-01)

jarq58-2_93-111.pdf1.28 MB

Simple Methods for Producing Tetraploids in Polyembryonic Citrus

Masashi YAMAMOTO, Seiya ARITA, Naoko KOZAI, JARQ:Japan Agricultural Research Quarterly. 58(2) , 113-119 (2024-04-01)

jarq58-2_113-119.pdf1.18 MB

Effects of Paclobutrazol Application and Soil Mulching on Flower Induction and Physiological Conditions in Durian Trees (Durio zibethinus Murr.)

Naoko KOZAI, Hirokazu HIGUCHI, Tatsushi OGATA, Tomohiro KONDO, Shin UGAWA, Yoshimi YONEMOTO, JARQ:Japan Agricultural Research Quarterly. 58(2) , 121-128 (2024-04-01)

jarq58-2_121-128.pdf1.32 MB

Rethinking the Factors Affecting the Arrival Quantity and Price of Sawlogs in Japanese Sawmills: An ARDL Approach

Tetsuya MICHINAKA, Nariaki ONDA, JARQ:Japan Agricultural Research Quarterly. 58(2) , 129-140 (2024-04-01)

jarq58-2_129-140.pdf1.49 MB

Chemical Biology in the Auxin Biosynthesis Pathway via Indole-3-Pyruvic Acid

Kazuo SOENO, Akiko SATO, Yukihisa SHIMADA, JARQ:Japan Agricultural Research Quarterly. 58(1) , 1-11 (2024-01-01)

jarq58-1_1-11.pdf657.86 KB

Phylogenetic Characterization of Salmonella enterica Serovar Typhimurium and its Monophasic Variant Isolated from Food Animals in Japan

Nobuo ARAI, JARQ:Japan Agricultural Research Quarterly. 58(1) , 13-23 (2024-01-01)

jarq58-1_13-23.pdf1000.45 KB

Molecular Basis of the Pathogenicity of the Foot-and-Mouth Disease Virus Isolated in Japan

Tatsuya NISHI, Katsuhiko FUKAI, Kazuki MORIOKA, JARQ:Japan Agricultural Research Quarterly. 58(1) , 25-30 (2024-01-01)

jarq58-1_25-30.pdf234.56 KB

Effects of Different Seeding Patterns on the Yield of Rice Directly Sown in a Well-drained Paddy Field Using Plowing and Compaction

Toshinori MATSUNAMI, Ryuji OTANI, Yasuhiro TACHIBANA, Morinobu MATSUO, Takashi YAMASHITA, JARQ:Japan Agricultural Research Quarterly. 58(1) , 31-37 (2024-01-01)

jarq58-1_31-37.pdf575.29 KB

Derivation of the Reach Time Equation—Based on the Arrhenius Equation, a Theoretical Equation Describing the Time Distribution to Reach a Certain Stage, such as Germination, in a Population

Yoshitaka HARA, JARQ:Japan Agricultural Research Quarterly. 58(1) , 39-48 (2024-01-01)

jarq58-1_39-48.pdf1.52 MB

Determination of the Antiallergic Activity of Lipophilic Components Isolated from the Red Alga Pyropia tenuipedalis

Yoshimasa SUGIURA, Mahiko ABE, Noboru MURASE, JARQ:Japan Agricultural Research Quarterly. 58(1) , 49-55 (2024-01-01)

jarq58-1_49-55.pdf357.52 KB

Seasonal Variations in the Vase Life of Cut Gerbera Flowers Are Involved in the Release of Electrolytes from Flower Stems to Vase Water

Makoto TONOOKA, Yoshiyuki HOMMA, Hideki NUKUI, Kazuo ICHIMURA, JARQ:Japan Agricultural Research Quarterly. 58(1) , 57-64 (2024-01-01)

jarq58-1_57-64.pdf1.53 MB

Evaluation of the Precision of Age Determination and Variability in Growth for Japanese Sardine (Sardinops melanostictus), Tsushima Warm Current Subpopulation

Yuki FUJINAMI, Motomitsu TAKAHASHI, Hiroyuki KUROTA, JARQ:Japan Agricultural Research Quarterly. 58(1) , 65-74 (2024-01-01)

jarq58-1_65-74.pdf835.93 KB

Breeding of Waxy Barley Cultivars in the National Barley Breeding Program of Japan

Takuji TONOOKA, JARQ:Japan Agricultural Research Quarterly. 57(4) , 251-259 (2023-10-01)

jarq57-4_251-259.pdf2.05 MB

Promotion to Farmers of Snow Compaction (Yuki-Fumi) on Winter Wheat to Control Volunteer Potatoes without Depending on Chemical Materials

Seiji SHIMODA, Tomoyoshi HIROTA, Masayuki ONODERA, JARQ:Japan Agricultural Research Quarterly. 57(4) , 261-268 (2023-10-01)

jarq57-4_261-268.pdf1.54 MB

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