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

Agronomic Characters of Mulberry Varieties Cultivated in South Sulawesi of Indonesia
MASARU YAMAMOTO, JARQ:Japan Agricultural Research Quarterly. 19(1) , 44-47 (1985-07-01)
19-1-044-047.pdf660.8 KB

Carbon, Nitrogen and Energy Source Requirements during Shooting in Mulberry Plants
TADAAKI YAMASHITA, JARQ:Japan Agricultural Research Quarterly. 19(1) , 48-54 (1985-07-01)
19-1-048-054.pdf1.11 MB

Coastal Disaster Prevention Forests in Japan
TETSUYA KUDOH, JARQ:Japan Agricultural Research Quarterly. 19(1) , 55-58 (1985-07-01)
19-1-055-058.pdf821.59 KB

Improvement of Raising Method of Dairy Calves in Malaysia : 2. Substitutes for imported soybean meal in calf starter rations
EITARO IMAIZUMI, C. DEVENDRA, JARQ:Japan Agricultural Research Quarterly. 19(1) , 59-69 (1985-07-01)
19-1-059-069.pdf1.83 MB

Selection of Resistant Parents in a Tomato Breeding Program for Late Blight Resistance in Cameron Highlands, Malaysia
TAKESHI NISHIO, TOSHIO HANADA, SHUKOR B. NORDIN, JARQ:Japan Agricultural Research Quarterly. 19(1) , 70-76 (1985-07-01)
19-1-070-076.pdf1.18 MB

Gibberellins in Immature Seeds of the Gramineae - Chemotaxonomic considerations -
YUTAKA MURAKAMI, JARQ:Japan Agricultural Research Quarterly. 18(4) , 241-251 (1985-03-01)
18-4-241-251.pdf1.38 MB

Photosynthesis Measurement by Oxygen Electrode as a Simple Bioassay Method
HITOSHI SAKA, HIDEO CHISAKA, JARQ:Japan Agricultural Research Quarterly. 18(4) , 252-259 (1985-03-01)
18-4-252-259.pdf1.36 MB

Concentration of Soybean Roots in Uppermost Layers of Cerrado Soils of Brazil
HIROSHI KAWASAKI, FUMIO IWATA, MANOEL V. DE MESQUITA FILHO, JARQ:Japan Agricultural Research Quarterly. 18(4) , 260-267 (1985-03-01)
18-4-260-267.pdf1.43 MB

Differences of Response to Cool Summer Damage and Wet Damage among Upland Crops
HISAO SHIOZAKI, KAZUNARI TSUCHIYA, JARQ:Japan Agricultural Research Quarterly. 18(4) , 268-274 (1985-03-01)
18-4-268-274.pdf1.15 MB

Classification of Cultivated Soils in Japan
YOJI AMANO, JARQ:Japan Agricultural Research Quarterly. 18(4) , 275-283 (1985-03-01)
18-4-275-283.pdf1.56 MB

Utilization of Rootstocks in Cucurbits Production in Japan
TAKEO KAWAIDE, JARQ:Japan Agricultural Research Quarterly. 18(4) , 284-289 (1985-03-01)
18-4-284-289.pdf968.17 KB

Sieving Technique with the Glass Beads Layer for Detection and Quantitation of Fasciola Eggs in Cattle Feces
NORIYUKI TAIRA, JARQ:Japan Agricultural Research Quarterly. 18(4) , 290-297 (1985-03-01)
18-4-290-297.pdf1.2 MB

Diagnosis of Bovine Mastitis by Determination of Lysosomal Enzyme Activity in Milk
YOSHIAKI OBARA, JARQ:Japan Agricultural Research Quarterly. 18(4) , 298-304 (1985-03-01)
18-4-298-304.pdf1.18 MB

Ecological Characters of Ectomycorrhizal Fungi and Their Mycorrhizae : - An introduction to the ecology of higher fungi -
MAKOTO OGAWA, JARQ:Japan Agricultural Research Quarterly. 18(4) , 305-314 (1985-03-01)
18-4-305-314.pdf1.66 MB

Mechanical properties of Tropical Woods
TAKASHI NAKAI, JARQ:Japan Agricultural Research Quarterly. 18(4) , 315-323 (1985-03-01)
18-4-315-323.pdf1.66 MB

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