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

International Symposium on Pastures in the Tropics and Subtropics
, JARQ:Japan Agricultural Research Quarterly. 18(4) , 324-326 (1985-03-01)
18-4-324-326.pdf583.12 KB

The Platypodidae (Coleoptera) of the Philippines
AKIRA NOBUCHI, JARQ:Japan Agricultural Research Quarterly. 18(4) , 327-330 (1985-03-01)
18-4-327-330.pdf745.17 KB

Rice Cultivation in Sabah, Malaysia : I. Yield and yield components in major paddy areas
GENSHICHI WADA, JARQ:Japan Agricultural Research Quarterly. 18(4) , 331-335 (1985-03-01)
18-4-331-335.pdf907.22 KB

Geomorphology, Hydrology and Rice Cultivation in the Chao Phraya Delta of Thailand
YOSHIKAZU TAKAYA, JARQ:Japan Agricultural Research Quarterly. 18(3) , 159-163 (1985-02-01)
18-3-159-163.pdf900.3 KB

Photoperiodic Flower Induction in Rice Plants as Influenced by Light Intensity and Quality
KATSUHIKO IKEDA, JARQ:Japan Agricultural Research Quarterly. 18(3) , 164-170 (1985-02-01)
18-3-164-170.pdf1.14 MB

Induction of Mutation for Powdery Mildew Resistance in Two-Rowed Barley
ISAO YAMAGUCHI, ATSUSHI YAMASHITA, JARQ:Japan Agricultural Research Quarterly. 18(3) , 171-175 (1985-02-01)
18-3-171-175.pdf860.18 KB

Chemical Control of the Brown Planthopper in Japan
TORU NAGATA, JARQ:Japan Agricultural Research Quarterly. 18(3) , 176-181 (1985-02-01)
18-3-176-181.pdf1.02 MB

Distribution and Ecology of Nematode-Trapping Fungi in Japan
YASUSHI MITSUI, JARQ:Japan Agricultural Research Quarterly. 18(3) , 182-193 (1985-02-01)
18-3-182-193.pdf1.84 MB

The Plant Parasitic Nematodes Important in Japan and the Related Researches
HARUO INAGAKI, JARQ:Japan Agricultural Research Quarterly. 18(3) , 194-201 (1985-02-01)
18-3-194-201.pdf1.54 MB

Growth Retardation of Satsuma Mandarin (Citrus unshiu Marc.) in Acid Soils and Preventive Measures
EIJI YUDA, JARQ:Japan Agricultural Research Quarterly. 18(3) , 202-208 (1985-02-01)
18-3-202-208.pdf1 MB

Influences of Unplucked Young Leaves on Carbohydrate and Nitrogen Content in Tea Plants
MASATAKA YAMASHITA, JARQ:Japan Agricultural Research Quarterly. 18(3) , 209-214 (1985-02-01)
18-3-209-214.pdf855.52 KB

Winter Hardiness of Grasses and Its Enhancement
JUN-ICHI KOSEKI, MASAO NOSHIRO, JARQ:Japan Agricultural Research Quarterly. 18(3) , 215-221 (1985-02-01)
18-3-215-221.pdf1.17 MB

Research of Polyploidy and Its Application in Morus
ISAO TOJYO, JARQ:Japan Agricultural Research Quarterly. 18(3) , 222-228 (1985-02-01)
18-3-222-228.pdf1.21 MB

Trypsin and Chymotrypsin Inhibitors in Winged Bean
JIRO ABE, HIROSHI NAKAMURA, HIROSHI SHIBATA, SHIGEMI NORIOKA, SABURO HARA, TOKUJI IKENAKA, JARQ:Japan Agricultural Research Quarterly. 18(3) , 229-232 (1985-02-01)
18-3-229-232.pdf716.2 KB

Effects of Cultural Treatments on Growth of Vegetables under Subtropical Climate
MASAKI NOGUCHI, HIROSHI NAKAMURA, JARQ:Japan Agricultural Research Quarterly. 18(3) , 233-240 (1985-02-01)
18-3-233-240.pdf724.88 KB

New Endosperm Mutants Modifying Starch Characteristics of Rice, Oryza sativa L.
KAZUTOSHI OKUNO, MASAHIRO YANO, JARQ:Japan Agricultural Research Quarterly. 18(2) , 73-78 (1984-10-01)
18-2-073-078.pdf981.8 KB

Starch Granules in Tissues of Rice Plants and Their Changes in Relation to Plant Growth
KANOE SATO, JARQ:Japan Agricultural Research Quarterly. 18(2) , 79-86 (1984-10-01)
18-2-079-086.pdf1.35 MB

Mechanisms of Phosphate Sorption on Soil Components with High Phosphate Retention Capacity
MASAMI NANZYO, YUTAKA WATANABE, JARQ:Japan Agricultural Research Quarterly. 18(2) , 87-91 (1984-10-01)
18-2-087-091.pdf896.09 KB

Forecasting Model and Estimation of Yield Loss by Rice Sheath Blight Disease
TERUYOSHI HASHIBA, JARQ:Japan Agricultural Research Quarterly. 18(2) , 92-98 (1984-10-01)
18-2-092-098.pdf1.1 MB

Resistance of the Kanzawa Spider Mite to Acaricides with Special Reference to Organophosphorus and Carbamate Compounds
MASAHIKO KUWAHARA, JARQ:Japan Agricultural Research Quarterly. 18(2) , 99-104 (1984-10-01)
18-2-099-104.pdf1.06 MB

Function of Windbreaks in Hilly Areas
RYOZO YAMAMOTO, JARQ:Japan Agricultural Research Quarterly. 18(2) , 105-111 (1984-10-01)
18-2-105-111.pdf930.35 KB

Chrysanthemum Production in the Age of Energy Conservation
JOICHI KAWATA, JARQ:Japan Agricultural Research Quarterly. 18(2) , 112-117 (1984-10-01)
18-2-112-117.pdf959.32 KB

Improvement of Quality of Green Tea by Deep-Pruning and Root-Pruning
SATOSHI AOKI, JARQ:Japan Agricultural Research Quarterly. 18(2) , 118-121 (1984-10-01)
18-2-118-121.pdf590.9 KB

Pathogenesis of Infectious Bovine Rhinotracheitis Virus Infection in Calves
MINORU NARITA, JARQ:Japan Agricultural Research Quarterly. 18(2) , 122-130 (1984-10-01)
18-2-122-130.pdf1.47 MB

In Vitro Culture of Forest Tree Calluses and Organs
HIROTAKA ISIKAWA, JARQ:Japan Agricultural Research Quarterly. 18(2) , 131-141 (1984-10-01)
18-2-131-141.pdf1.74 MB

Nematological Survey on Winged Bean Fields in Okinawa with Special Reference to Varietal Difference in Susceptibility to Root-knot Nematodes
RINKO TERUYA, JIRO ABE, MASAAKI NAGAMINE, HIROSHI NAKAMURA , JARQ:Japan Agricultural Research Quarterly. 18(2) , 142-147 (1984-10-01)
18-2-142-147.pdf124.65 KB

Improvement of Raising Method of Dairy Calves in Malaysia : 1. Utilization of local agricultural products and by-products as energy sources for calf starter rations
EITARO IMAIZUMI, C. DEVENDRA, JARQ:Japan Agricultural Research Quarterly. 18(2) , 148-157 (1984-10-01)
18-2-148-157.pdf1.53 MB

Differentiation of Starch Property in Perisperm of Grain Amaranths
KAZUTOSHI OKUNO, SUSUMU SAKAGUCHI, JARQ:Japan Agricultural Research Quarterly. 18(1) , 1-5 (1984-07-01)
18-1-001-005.pdf1.02 MB

A New Indicator of Earliness of Maize Varieties for Whole Crop Silage, and Its Application to Varietal Combination in Hokkaido
HIDEO TOZAWA, JARQ:Japan Agricultural Research Quarterly. 18(1) , 6-11 (1984-07-01)
18-1-006-011.pdf1.02 MB

Relation between Cytoplasmic Male Sterility and Mitochondrial Enzyme Activities in Maize
MASATAKE OHMASA, JARQ:Japan Agricultural Research Quarterly. 18(1) , 12-19 (1984-07-01)
18-1-012-019.pdf1.25 MB