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 Production of Vegetables in the Tropics and Sub-Tropics
, JARQ:Japan Agricultural Research Quarterly. 23(4) , 317-322 (1990-03-01)
23-4-317-322.pdf1.11 MB
Natural Enemies of the Rice Gall Midge, Orseolia oryzae (Wood-Mason) Observed in Yala Season in Sri Lanka
MASAHIRO KOBAYASHI, LIONEL NUGALIYADDE, CHANDRASIRI KUDAGAMAGE, JARQ:Japan Agricultural Research Quarterly. 23(4) , 323-328 (1990-03-01)
23-4-323-328.pdf1.18 MB
Development of Data Handling and Management System Using Microcomputers for Tropical Soils and Crops
HIDEO IMAI, JARQ:Japan Agricultural Research Quarterly. 23(4) , 329-336 (1990-03-01)
23-4-329-336.pdf1.26 MB
Varietal Difference in Resistance to Purple Seed Stain of Soybean and the Method of Selecting for the Resistance
AKINORI OKABE, KOUICHI SASAKI, KAZUNORI IGITA, JARQ:Japan Agricultural Research Quarterly. 23(3) , 163-169 (1990-01-01)
23-3-163-169.pdf1.12 MB
Newly Discovered Leaf Blight of Citronella Grass Caused by Curvularia andropogonis in the Philippines
TOYOZO SATO, HIROTO OHKUBO, JARQ:Japan Agricultural Research Quarterly. 23(3) , 170-175 (1990-01-01)
23-3-170-175.pdf1.08 MB
Factors of the Rice Blast Outbreak in Nile Delta, Egypt
OSAMU HORINO, FATIHI EL-NEMR, MOHAMED YOUSEF, HIKARU NIKI, JARQ:Japan Agricultural Research Quarterly. 23(3) , 176-181 (1990-01-01)
23-3-176-181.pdf1.1 MB
Variability of Pathogenicity in Races of Xanthomonas campestris pv. oryzae in Japan
TAKAHITO NODA, OSAMU HORINO, AKIRA OHUCHI, JARQ:Japan Agricultural Research Quarterly. 23(3) , 182-189 (1990-01-01)
23-3-182-189.pdf1.26 MB
Quantification of Cattle Dung-Related Processes in Bahiagrass Pasture
MASAHIKO HIRATA, YASUHIRO SUGIMOTO, MASAHIKO UENO, JARQ:Japan Agricultural Research Quarterly. 23(3) , 190-195 (1990-01-01)
23-3-190-195.pdf954.39 KB
A New Registered Cultivar "Natsukaze" of Guineagrass
HIROYASU SATO, NORIHIRO SHIMIZU, HITOSHI NAKAGAWA, KOUSUKE NAKAJIMA, JARQ:Japan Agricultural Research Quarterly. 23(3) , 196-201 (1990-01-01)
23-3-196-201.pdf1.11 MB
Effects of Photoperiod on the Induction of Egg Diapause of Tropical Races of the Domestic Silkworm, Bombyx mori, and the Wild Silkworm, B. mandarina
JUN KOBAYASHI, JARQ:Japan Agricultural Research Quarterly. 23(3) , 202-205 (1990-01-01)
23-3-202-205.pdf833.29 KB
Non-Destructive Evaluation of Carcass Characteristics in Live Cattle with a Color Scanning Scope
KYOUHEI OZUTSUMI, KOUICHI CHIKUNI, TSUNEKICHI KOISHIKAWA, SADAO KATO, KEN ITO, MASAKAZU KOBAYASHI, TOMIO EBATA, YASUSHI TAMADA, MITSURU YOSHITAKE, JARQ:Japan Agricultural Research Quarterly. 23(3) , 206-212 (1990-01-01)
23-3-206-212.pdf1.33 MB
Comparison of Soil Surface Evaporation between Natural Broad-Leaved Forest and Artificial Needle-Leaved Forest
NOBUJI TAKEUCHI, HIROSHI MURAI, JARQ:Japan Agricultural Research Quarterly. 23(3) , 213-219 (1990-01-01)
23-3-213-219.pdf1022.96 KB
A New Planning System with the Aid of Computers for Designing Skidding Road Networks in Tractor Logging Operations
MOTOKI INOUE, JARQ:Japan Agricultural Research Quarterly. 23(3) , 220-231 (1990-01-01)
23-3-220-231.pdf1.91 MB
Introduction of Legumes in Brachiaria humidicola Pasture Using Macro-Pellet
YASUO OGAWA, TSUYOSHI MITAMURA, JAMES M. SPAIN, CARLOS PERDOMO, PATRICIA AVILA, JARQ:Japan Agricultural Research Quarterly. 23(3) , 232-240 (1990-01-01)
23-3-232-240.pdf1.81 MB
Distribution of Pathogenic Races and Changes in Virulence of Rice Blast Fungus, Pyricularia oryzae Cav., in Yunnan Province, China
MASATAKA IWANO, JA LUI LEE, CHENG YUN LEE, PING KONG, JARQ:Japan Agricultural Research Quarterly. 23(3) , 241-248 (1990-01-01)
23-3-241-248.pdf1.26 MB
A High Yielding Indica-Japonica-Hybrid Rice Variety "Hoshiyutaka"
MAKOTO SAKAI, HARUMI SHINODA, TAKAFUMI HOSHINO, MASAHIRO OKAMOTO, JARQ:Japan Agricultural Research Quarterly. 23(2) , 81-85 (1989-10-01)
23-2-081-085.pdf865.25 KB
Measurement of Leaf Color Scores and Its Implication to Nitrogen Nutrition of Rice Plants
MASAKO TAKEBE, TADAKATSU YONEYAMA, JARQ:Japan Agricultural Research Quarterly. 23(2) , 86-93 (1989-10-01)
23-2-086-093.pdf1.4 MB
Seed Treatment for Control of Seed-Borne Fusarium roseum on Wheat
AKIO NAKAGAWA, TAKEO YAMAGUCHI, JARQ:Japan Agricultural Research Quarterly. 23(2) , 94-99 (1989-10-01)
23-2-094-099.pdf1.06 MB
Distribution of Pythium Snow Rot Fungi in Paddy Fields and Upland Fields
SUSUMU TAKAMATSU, JARQ:Japan Agricultural Research Quarterly. 23(2) , 100-108 (1989-10-01)
23-2-100-108.pdf1.28 MB
Winter Hardiness of Cocksfoot Cultivars in Hokkaido
JIRO ABE, JARQ:Japan Agricultural Research Quarterly. 23(2) , 109-114 (1989-10-01)
23-2-109-114.pdf952.02 KB
Grassland Renovation by Taking Advantage of Natural Reseeding
NORIHISA KITAHARA, YOSHINORI YOSHIMURA, SHINJIRO SUZUKI, JARQ:Japan Agricultural Research Quarterly. 23(2) , 115-120 (1989-10-01)
23-2-115-120.pdf1.07 MB
Characteristics of in vitro Dry Matter Digestibility of Phleum pratense L. as a Basis of Breeding for High Quality Cultivars
MASAMICHI FURUYA, JARQ:Japan Agricultural Research Quarterly. 23(2) , 121-126 (1989-10-01)
23-2-121-126.pdf986.54 KB
Genetic Studies on Tropical Races of Silkworm (Bombyx mori) with Special Reference to Cross Breeding Strategy between Tropical and Temperate Races 2. Multivoltine silkworm strains in Japan and their origin
AKIO MURAKAMI, JARQ:Japan Agricultural Research Quarterly. 23(2) , 127-133 (1989-10-01)
23-2-127-133.pdf1.58 MB
Estimation of Heat Production from Heart Rate Measurement of Free Living Farm Animals
SADAKI YAMAMOTO, JARQ:Japan Agricultural Research Quarterly. 23(2) , 134-143 (1989-10-01)
23-2-134-143.pdf1.78 MB
Development of Movable Charcoal-Making Kilns
GENJI UNRININ, MITSUYOSHI YATAGAI, JARQ:Japan Agricultural Research Quarterly. 23(2) , 144-150 (1989-10-01)
23-2-144-150.pdf1.17 MB
Atypical Strains of Aspergillus flavus Isolated in Maize Fields : - Aflatoxin-producing ability and distribution in Thailand -
MICHIHIKO SAITO, OSAMU TSURUTA, PRISNAR SIRIACHA, SHOICHI KAWASUGI, MASARU MANABE, JARQ:Japan Agricultural Research Quarterly. 23(2) , 151-154 (1989-10-01)
23-2-151-154.pdf943.36 KB
Estimation of Social Account for Rural Development in Upland Java : - An application of farming system approach -
YOSHINORI MOROOKA, HENNY MAYROWANI, JARQ:Japan Agricultural Research Quarterly. 23(2) , 155-162 (1989-10-01)
23-2-155-162.pdf1.49 MB
Soybean Cultivation with Shallow Tillage and Barley Straw Mulch in the Warm Shikoku District of Japan
SATORU KIMURA, JARQ:Japan Agricultural Research Quarterly. 23(1) , 1-7 (1989-07-01)
23-1-001-007.pdf1.16 MB
Histopathology of Resistant and Susceptible Rice Plants Inoculated with Pyricularia oryzae Cavara
HIRONORI KOGA, JARQ:Japan Agricultural Research Quarterly. 23(1) , 8-15 (1989-07-01)
23-1-008-015.pdf1.33 MB
Development of Computer-Aided Soil Cone-Penetrometers and Data Processing
ATSUSHI SAWAMURA, FUKUJI MIYAZAWA, NOBUYUKI SAWAMURA, JARQ:Japan Agricultural Research Quarterly. 23(1) , 16-23 (1989-07-01)
23-1-016-023.pdf1.18 MB