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

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

Selection of Recurrent Parents to Develop Near-Isogenic Lines Resistant to Bacterial Leaf Blight of Rice
TSUGUFUMI OGAWA, TSUYOSHI YAMAMOTO, JARQ:Japan Agricultural Research Quarterly. 21(1) , 65-69 (1987-07-01)
21-1-065-069.pdf1.04 MB

Relationship between Characteristics and Germination Ability of Cuttings in Cassava (Manihot esculenta Crantz)
MITSUNORI OKA, JARUNGSIT LIMSILA, SUPACHAI SARAKARN, JARQ:Japan Agricultural Research Quarterly. 21(1) , 70-75 (1987-07-01)
21-1-070-075.pdf1.05 MB

Gibberellins in Immature Seeds of Winged Bean : - In comparison with some other legumes -
YUTAKA MURAKAMI, MASAJI KOSHIOKA, AWANG SOH BIN MAMAT, JARQ:Japan Agricultural Research Quarterly. 20(4) , 225-228 (1987-03-01)
20-4-225-228.pdf798.81 KB

Integrated Control of Soybean Stink Bugs in the Cerrados
TAKASHI KOBAYASHI, GILSON W. COSENAZA, JARQ:Japan Agricultural Research Quarterly. 20(4) , 229-236 (1987-03-01)
20-4-229-236.pdf1.3 MB

Efficient Screening of Rice Varieties for Resistance to Rice Green Leafhopper by Estimating the Insect Population with Sticky Boards
TOKIO IMBE, JARQ:Japan Agricultural Research Quarterly. 20(4) , 237-241 (1987-03-01)
20-4-237-241.pdf946.47 KB

Development of a New System for Pyrolytic Gasification of Rice Husks
HIRONOSHIN TAKAO, TOSHIZO BAN, KOTARO KUBOTA, JARQ:Japan Agricultural Research Quarterly. 20(4) , 242-247 (1987-03-01)
20-4-242-247.pdf920.94 KB

Mechanism of the Development of a Calcium-Related Disorder (Bitter Pit) in Apple
MASASHI FUKUMOTO, KOUSHIRO NAGAI, HIROTO YOSHIOKA, KOJI AOBA, JARQ:Japan Agricultural Research Quarterly. 20(4) , 248-252 (1987-03-01)
20-4-248-252.pdf920.42 KB

Rootstock Studies for Citrus Varieties in Japan
KENJI KAWASE, ISAO IWAGAKI, TOSHIO TAKAHARA, SUKEYUKI ONO, KAZUYOSHI HIROSE, JARQ:Japan Agricultural Research Quarterly. 20(4) , 253-259 (1987-03-01)
20-4-253-259.pdf1.26 MB

Growth Characteristics of Three Strains, M 28, M 32 and M 38 of Morus acidosa Griff. and Adaptability to Subtropical Regions
HIROAKI MACHII, JARQ:Japan Agricultural Research Quarterly. 20(4) , 260-268 (1987-03-01)
20-4-260-268.pdf1.37 MB

Effects of Temporary Intergeneric Grafting on the Chromosome Number of Mulberry Tree
MASAYOSHI OGURE, JARQ:Japan Agricultural Research Quarterly. 20(4) , 269-275 (1987-03-01)
20-4-269-275.pdf1.13 MB

Quality Deterioration of Cereal Grains Caused by Fungal Infection during Storage : - Corn and milo imported for feed -
OSAMU TSURUTA, JARQ:Japan Agricultural Research Quarterly. 20(4) , 276-281 (1987-03-01)
20-4-276-281.pdf1.02 MB

Feeding Value of Steamed Wood and Explosively Depressurized Wood
AKIHIRO TAKIGAWA, JARQ:Japan Agricultural Research Quarterly. 20(4) , 282-291 (1987-03-01)
20-4-282-291.pdf1.75 MB

International Symposium on Technology for Double Cropping of Rice in the Tropics
, JARQ:Japan Agricultural Research Quarterly. 20(4) , 292-295 (1987-03-01)
20-4-292-295.pdf762.91 KB

Estimation of Germinability of Gramineous and Leguminous Seeds in Long-Term Storage by Means of Peroxidase Activity and TTC Reduction
TOKUHIRO MOMONOKI, YOSHIE S. MOMONOKI, JARQ:Japan Agricultural Research Quarterly. 20(4) , 296-301 (1987-03-01)
20-4-296-301.pdf1.09 MB

Characteristics of Physic Nut, Jatropha curcas L. as a New Biomass Crop in the Tropics
WIMONRAT SUKARIN, YOSHIO YAMADA, SUSUMU SAKAGUCHI, JARQ:Japan Agricultural Research Quarterly. 20(4) , 302-303 (1987-03-01)
20-4-302-303.pdf358.67 KB