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

Plant Viroid Diseases Occurring in Japan
TSUYOSHI TAKAHASHI, JARQ:Japan Agricultural Research Quarterly. 21(3) , 184-191 (1987-12-01)
21-3-184-191.pdf1.71 MB

Off-flavor Components of Green Tea during Preservation
HIROSHI HORITA, JARQ:Japan Agricultural Research Quarterly. 21(3) , 192-197 (1987-12-01)
21-3-192-197.pdf1.03 MB

Faunal Composition and Seasonal Distribution of Tabanid Flies (Diptera, Tabanidae) at Plain and Mountain Pastures in Northern Tochigi, Japan
YASUHIRO ITO, TAKESHI MATSUMURA, JARQ:Japan Agricultural Research Quarterly. 21(3) , 198-204 (1987-12-01)
21-3-198-204.pdf1.14 MB

Preservation of Genetic Resources of Mulberry by Means of Tissue Culture
SUEO ENOMOTO, JARQ:Japan Agricultural Research Quarterly. 21(3) , 205-210 (1987-12-01)
21-3-205-210.pdf1.02 MB

Relationship between the Amount of Silk and Nucleic Acids in the Silk Gland of Bombyx Mori
KEIJI KURATA, JARQ:Japan Agricultural Research Quarterly. 21(3) , 211-217 (1987-12-01)
21-3-211-217.pdf1.25 MB

Effects of Suckling on Postpartum Reproductive Performance of Beef Cows and Growth of Their Calves
OSAMU SUZUKI, MASAMI SATO, JARQ:Japan Agricultural Research Quarterly. 21(3) , 218-225 (1987-12-01)
21-3-218-225.pdf1.41 MB

Relationship between Ear Primordia Development and Growth Attributes of Wheat Cultivars in Dry Areas of North Africa and West Asia
TSUGUHIRO HOSHINO, MUHAMD TAHIR, JARQ:Japan Agricultural Research Quarterly. 21(3) , 226-232 (1987-12-01)
21-3-226-232.pdf1.21 MB

Variations in Some Characteristics of Cassava Stems during Storage Prior to Taking Cuttings
MITSUNORI OKA, SOPHON SINTHUPRAMA, JARUNGSIT LIMSILA, JARQ:Japan Agricultural Research Quarterly. 21(3) , 233-236 (1987-12-01)
21-3-233-236.pdf687.98 KB

Nutrio-Physiological Characteristics of Azuki-bean and Methods of Fertilizer Application
MASATOSHI SAWAGUCHI, JARQ:Japan Agricultural Research Quarterly. 21(2) , 77-83 (1987-09-01)
21-2-077-083.pdf1.18 MB

Origin and Dispersal of Common Millet and Foxtail Millet
SADAO SAKAMOTO, JARQ:Japan Agricultural Research Quarterly. 21(2) , 84-89 (1987-09-01)
21-2-084-089.pdf1.24 MB

Serological Studies on Rice Transitory Yellowing Virus (RTYV) in Rice Plants and Green Leafhoppers
TAKAHARU HAYASHI, YUZO MINOBE, JARQ:Japan Agricultural Research Quarterly. 21(2) , 90-95 (1987-09-01)
21-2-090-095.pdf1.01 MB

Monoclonal Antibodies against Plant Viruses - Procedure and some applications -
YUZO NOZU, JARQ:Japan Agricultural Research Quarterly. 21(2) , 96-101 (1987-09-01)
21-2-096-101.pdf1.06 MB

Importance and Problems of Disposal of Crop Residues Containing Pathogens of Plant Diseases
SHOSHIRO TAKEUCHI, JARQ:Japan Agricultural Research Quarterly. 21(2) , 102-108 (1987-09-01)
21-2-102-108.pdf1.26 MB

Biological Control of the Kanzawa Spider Mite, Tetranychus kanzawai Kishida, in Tea Fields by the Predacious Mite, Amblyseius longispinosus (Evans), which is Resistant to Chemicals (Acarina; Tetranychidae, Phytoseiidae)
TETSUZO HAMAMURA, JARQ:Japan Agricultural Research Quarterly. 21(2) , 109-116 (1987-09-01)
21-2-109-116.pdf1.14 MB

Septicemia Occurrence in Cocoons as Related to Silkworm Rearing Conditions
SUEO ENOMOTO, HIROSHI MORIYAMA, SETSUO IWANAMI, JARQ:Japan Agricultural Research Quarterly. 21(2) , 117-121 (1987-09-01)
21-2-117-121.pdf896.91 KB

Newly Developed Seroimmunological Diagnosis (Enzyme-Linked Immunosorbent Assay) for Chicken Leucocytozoonosis
TAKASHI ISOBE, JARQ:Japan Agricultural Research Quarterly. 21(2) , 122-128 (1987-09-01)
21-2-122-128.pdf942.32 KB

Manures Made of Livestock Excreta, and Their Application to the Nursery
KEIJI FUJITA, JARQ:Japan Agricultural Research Quarterly. 21(2) , 129-133 (1987-09-01)
21-2-129-133.pdf939.45 KB

Methods of Predicting Watersheds in Danger of Flood
YUKIO MASHIMA, JARQ:Japan Agricultural Research Quarterly. 21(2) , 134-137 (1987-09-01)
21-2-134-137.pdf782.75 KB

Reaction of Rice Cultivars Resistant to Japanese and Philippine Races of Xanthomonas campestris pv. oryzae
TSUGUFUMI OGAWA, TSUYOSHI YAMAMOTO, JARQ:Japan Agricultural Research Quarterly. 21(2) , 138-145 (1987-09-01)
21-2-138-145.pdf1.6 MB

Evaluation of Winged Bean in Okinawa
JIRO ABE, HIROSHI NAKAMURA, JARQ:Japan Agricultural Research Quarterly. 21(2) , 146-152 (1987-09-01)
21-2-146-152.pdf1.11 MB

Analytical Studies on the Planning of Time-Scheduled Rice Cultivation
TOSHIO MURAKAMI, JARQ:Japan Agricultural Research Quarterly. 21(1) , 1-7 (1987-07-01)
21-1-001-007.pdf1.24 MB

Isolation, Culture and Organogenesis of Leaf Mesophyll Protoplasts of Paper Mulberry (Broussonetia kazinoki Sieb.)
SEIBI OKA, JARQ:Japan Agricultural Research Quarterly. 21(1) , 8-13 (1987-07-01)
21-1-008-013.pdf1.01 MB

A Computerized Soil Information System for Arable Land in Japan (JAPSIS) : -Present structure and some applications-
YOSHITAKE KATO, JARQ:Japan Agricultural Research Quarterly. 21(1) , 14-21 (1987-07-01)
21-1-014-021.pdf1.37 MB

Emission of Nitrous Oxide (N2O) from Agro-Ecosystem
KATSUYUKI MINAMI, JARQ:Japan Agricultural Research Quarterly. 21(1) , 22-27 (1987-07-01)
21-1-022-027.pdf932.51 KB

Development of a New Soil-Core Sampler
MOTOMU KARAHASHI, KUNIO MORIMOTO, TAKASHI GOTO, YUKITO FUJII, JARQ:Japan Agricultural Research Quarterly. 21(1) , 28-35 (1987-07-01)
21-1-028-035.pdf1.23 MB

Cultivation of Clubroot-Resistant Strains to Suppress Population Density of Resting Spores of Plasmodiophora brassicae in the Soil
HIROSHI YAMAGISHI, JARQ:Japan Agricultural Research Quarterly. 21(1) , 36-41 (1987-07-01)
21-1-036-041.pdf1.11 MB

Metabolism of L-Theanine in Tea Leaves
TOJIRO TSUSHIDA, JARQ:Japan Agricultural Research Quarterly. 21(1) , 42-46 (1987-07-01)
21-1-042-046.pdf929.42 KB

Some Characteristics of Forage Plant Lignin
TSUNEO KONDO, KAZUHIKO MIZUNO, TADASHI KATO, JARQ:Japan Agricultural Research Quarterly. 21(1) , 47-52 (1987-07-01)
21-1-047-052.pdf976.92 KB

Components of Silk Proteins and Their Gene Loci in the Silkworm
TAKUMA GAMO, JARQ:Japan Agricultural Research Quarterly. 21(1) , 53-58 (1987-07-01)
21-1-053-058.pdf953.79 KB

Digestion of Rice Straw Cell Wall Constituents in Various Rumen Conditions
YANTYATI WIDYASTUTI, FUMINORI TERADA, HIROSHI KAJIKAWA, AKIRA ABE, JARQ:Japan Agricultural Research Quarterly. 21(1) , 59-64 (1987-07-01)
21-1-059-064.pdf1.05 MB