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

Bacterial Diseases of Fruit Trees Found in Japan
KAZUO TAKANASHI, JARQ:Japan Agricultural Research Quarterly. 22(4) , 290-296 (1989-03-01)
22-4-290-296.pdf1.4 MB

Measurement of Heat Sensitivity in Cucumber Leaves by Chlorophyll Fluorescence
SATOSHI AOKI, MASAAKI NAGAOKA, JARQ:Japan Agricultural Research Quarterly. 22(4) , 297-301 (1989-03-01)
22-4-297-301.pdf976.64 KB

Drying Characteristics of Tea Leaves
HITOSHI YOSHITOMI, JARQ:Japan Agricultural Research Quarterly. 22(4) , 302-309 (1989-03-01)
22-4-302-309.pdf1.18 MB

Role of Microorganisms in Tempeh Manufacture - Isolation of vitamin B12 producing bacteria -
NORIYUKI OKADA, JARQ:Japan Agricultural Research Quarterly. 22(4) , 310-316 (1989-03-01)
22-4-310-316.pdf1.27 MB

International Symposium on Crop Losses due to Disease Outbreaks in the Tropics and Countermeasures
, JARQ:Japan Agricultural Research Quarterly. 22(4) , 317-321 (1989-03-01)
22-4-317-321.pdf1001.7 KB

Hydrological Characteristics in the Catchment Area of Muda and Pedu Reservoirs : - Case study on irrigation management in the Muda Irrigation Scheme, Malaysia -
YOSHINOBU KITAMURA, JARQ:Japan Agricultural Research Quarterly. 22(4) , 322-333 (1989-03-01)
22-4-322-333.pdf1.88 MB

Technical Strategies to Increase Rice Yields in the Wasan Rice Project, Brunei Darussalam
SHIGEO YASHIMA, HAJI MATZIN HAJI SALLEH, PAUL W. BURTON, KUANG SITIM, JARQ:Japan Agricultural Research Quarterly. 22(4) , 334-336 (1989-03-01)
22-4-334-336.pdf506.01 KB

Apple Snail in Japan : - The present status and management -
YOSHIO HIRAI, JARQ:Japan Agricultural Research Quarterly. 22(3) , 161-165 (1988-12-01)
22-3-161-165.pdf831.16 KB

Sudden Outbreaks of the Armyworm, Pseudaletia separata WALKER and Its Monitoring Systems in Japan
KAZUO HIRAI, JARQ:Japan Agricultural Research Quarterly. 22(3) , 166-174 (1988-12-01)
22-3-166-174.pdf1.47 MB

Recent Studies on Natural Enemies of the Rice Gall Midge, Orseolia oryzae (Wood-Mason)
TERUNOBU HIDAKA, ERMA BUDIYANTO, VANICH YA-KLAI, RAVINDRA C. JOSHI, JARQ:Japan Agricultural Research Quarterly. 22(3) , 175-180 (1988-12-01)
22-3-175-180.pdf1.23 MB

Production of Somatic Hybrid Plants through Protoplast Fusion in Citrus
SHOZO KOBAYASHI, TOSHIFUMI OHGAWARA, JARQ:Japan Agricultural Research Quarterly. 22(3) , 181-188 (1988-12-01)
22-3-181-188.pdf1.24 MB

Estimation of Nitrate Leaching in Vegetable Fields in Relation to Precipitation
KAZUO SHIBANO, YOSHIKAZU OHNO, JARQ:Japan Agricultural Research Quarterly. 22(3) , 189-194 (1988-12-01)
22-3-189-194.pdf1015.98 KB

Changes of Chemical Compounds during Green Tea Manufacturing
TOYOMASA ANAN, JARQ:Japan Agricultural Research Quarterly. 22(3) , 195-199 (1988-12-01)
22-3-195-199.pdf839.91 KB

Characteristics of Cattle Tracks on Steep Grassland in Relation to Cattle Behavior and Land Conservation
MUNEO OIKAWA, MASATOSHI SHIMAMURA, MASAAKI USHIYAMA, MASATAKA FUKUYAMA, JARQ:Japan Agricultural Research Quarterly. 22(3) , 200-205 (1988-12-01)
22-3-200-205.pdf979.8 KB

Breeding of New Alfalfa Cultivars for High Quality Forage Production in Warm Regions of Japan
SUSUMU INAMI, JARQ:Japan Agricultural Research Quarterly. 22(3) , 206-213 (1988-12-01)
22-3-206-213.pdf1.14 MB

Grassland Management Models
MASAE SHIYOMI, JARQ:Japan Agricultural Research Quarterly. 22(3) , 214-228 (1988-12-01)
22-3-214-228.pdf2.12 MB

The Bioavailability of Nutrients in Some Philippine Feedstuffs to Poultry
MASAYOSHI YAMAZAKI, PERLA L. LOPEZ, KOICHI KAKU, JARQ:Japan Agricultural Research Quarterly. 22(3) , 229-234 (1988-12-01)
22-3-229-234.pdf1.08 MB

Feeding Value of Oil Palm By-Products 2. Degradation properties in the rumen of Kedah-Kelantan cattle
MASAKI SHIBATA, ABU HASSAN OSMAN, JARQ:Japan Agricultural Research Quarterly. 22(3) , 235-241 (1988-12-01)
22-3-235-241.pdf1.33 MB

Land Leveling Guided by a Laser Machine Contorol System in Malaysia
NOBUHARU SASANO, ABU HASSAN DAUD, AYOB KATIMON, JARQ:Japan Agricultural Research Quarterly. 22(3) , 242-246 (1988-12-01)
22-3-242-246.pdf689.24 KB

Paraquat Resistance in Erigeron philadelphicus L.
KAZUYUKI ITOH, JARQ:Japan Agricultural Research Quarterly. 22(2) , 85-90 (1988-09-01)
22-2-085-090.pdf1005.61 KB

A Method of Measuring Available Silicates in Paddy Soils
KUNIHIKO NONAKA, KAZUO TAKAHASHI, JARQ:Japan Agricultural Research Quarterly. 22(2) , 91-95 (1988-09-01)
22-2-091-095.pdf892.26 KB

Resistance of the Bulb Mite, Rhizoglyphus robini Claparede, to Organophosphorus Insecticides
MASAHIKO KUWAHARA, JARQ:Japan Agricultural Research Quarterly. 22(2) , 96-100 (1988-09-01)
22-2-096-100.pdf1019.25 KB

Collection of Solanaceous Plants in Malaysia and Screening for Disease Resistance
TOMOAKI NARIKAWA, YOSHITERU SAKATA, SHOJI KOMOCHI, MELOR REJAB, HENG CHING KOK, JUMALI SURATMAN, JARQ:Japan Agricultural Research Quarterly. 22(2) , 101-106 (1988-09-01)
22-2-101-106.pdf1.02 MB

Protected Cultivation of Fruit Trees in Japan
FUKUYA KAMOTA, JARQ:Japan Agricultural Research Quarterly. 22(2) , 107-113 (1988-09-01)
22-2-107-113.pdf1.27 MB

Sorghum-Legume Mixed Cropping for High Yields of High Quality Forage
YASUHIRO KAWAMOTO, YASUHISA MASUDA, ICHIRO GOTO, JARQ:Japan Agricultural Research Quarterly. 22(2) , 114-120 (1988-09-01)
22-2-114-120.pdf1.22 MB

Physiology of Ribulose Bisphosphate Carboxylase as Major Leaf Protein in Mulberry (Morus alba L.)
TADAAKI YAMASHITA, JARQ:Japan Agricultural Research Quarterly. 22(2) , 121-127 (1988-09-01)
22-2-121-127.pdf1.13 MB

Hormonal Regulation of Larval Development and Its Utilization in Silk Production by Bombyx Silkmoth
HIROMU AKAI, JARQ:Japan Agricultural Research Quarterly. 22(2) , 128-134 (1988-09-01)
22-2-128-134.pdf1.3 MB

Antigenically Reactive Regions of Bovine Milk Proteins
HAJIME OTANI, JARQ:Japan Agricultural Research Quarterly. 22(2) , 135-142 (1988-09-01)
22-2-135-142.pdf1.57 MB

Biotechnological Advances in Livestock Reproduction
W. M. N. MWENYA, OTHMAN ABAS MAZNI, HIROSHI KANAGAWA, JARQ:Japan Agricultural Research Quarterly. 22(2) , 143-148 (1988-09-01)
22-2-143-148.pdf1.01 MB

Characteristic Response to Water Stress in Young Plants of Vegetable Cultivars Introduced from the Tropical Zone
TOKUHIRO MOMONOKI, YOSHIE S. MOMONOKI, JARQ:Japan Agricultural Research Quarterly. 22(2) , 149-156 (1988-09-01)
22-2-149-156.pdf1.42 MB