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

Hymenopterous Parasitoids of the Rice Gall Midge, Orseolia oryzae (Wood-Mason) in the Early Maha Season in Sri Lanka
Masahiro KOBAYASHI, Chandrasiri KUDAGAMAGE, Lionel NUGALIYADDE, JARQ:Japan Agricultural Research Quarterly. 25(1) , 65-68 (1991-07-01)
25-1-065-068.pdf701.03 KB

Nematode Faunas and Their Population Dynamics in Mulberry Fields Infected by Root Rot in Thailand
Yukio TOIDA, Somkuan KEEREEWAN, JARQ:Japan Agricultural Research Quarterly. 25(1) , 69-73 (1991-07-01)
25-1-069-073.pdf817.7 KB

Mechanized Production of F1 Seeds in Rice by Mixed Planting
Kiyoaki MARUYAMA, Hiroshi KATO, Hitoshi ARAKI, JARQ:Japan Agricultural Research Quarterly. 24(4) , 243-252 (1991-03-01)
24-4-243-252.pdf1.42 MB

Azospirillum spp. from Crop Roots: A Promoter of Plant Growth
Takuma GAMO, JARQ:Japan Agricultural Research Quarterly. 24(4) , 253-259 (1991-03-01)
24-4-253-259.pdf1.01 MB

Occurrence of a Strain of Bean Rugose Mosaic Virus on Soybean(Glycine max) in Central Brazil
Norio IIZUKA, Maria Jose D'Avila CHARCHAR, JARQ:Japan Agricultural Research Quarterly. 24(4) , 260-264 (1991-03-01)
24-4-260-264.pdf749.17 KB

Recent Advances of Carnation Production in Japan
Takashi YAMAGUCHI, JARQ:Japan Agricultural Research Quarterly. 24(4) , 265-272 (1991-03-01)
24-4-265-272.pdf1.17 MB

Glucosinolate in Japanese Radish, Raphanus sativus L.
Gensho ISHII, JARQ:Japan Agricultural Research Quarterly. 24(4) , 273-279 (1991-03-01)
24-4-273-279.pdf1.05 MB

Resistance to Cotton Aphid (Aphis gossypii G.) in Melon : Its Mechanism and Selection Methods
Tatemi YOSHIDA, Yoshihiro IWANAGA, JARQ:Japan Agricultural Research Quarterly. 24(4) , 280-286 (1991-03-01)
24-4-280-286.pdf1.07 MB

Plant Regeneration from Protoplasts of Satsuma Mandarin(Citrus unshiu Marc.) via Somatic Embryogenesis
Hisato KUNITAKE, Hiroshi KAGAMI, Masahiro MII, JARQ:Japan Agricultural Research Quarterly. 24(4) , 287-291 (1991-03-01)
24-4-287-291.pdf867.78 KB

Cultivation of Satsuma Mandarin in Vinyl-Greenhouses in Japan
Isao IWAGAKI, JARQ:Japan Agricultural Research Quarterly. 24(4) , 292-299 (1991-03-01)
24-4-292-299.pdf1.15 MB

Mulberry Damages Caused by a Root-Knot Nematode, Meloidogyne mali Indigenous to Japan
Yukio TOIDA, JARQ:Japan Agricultural Research Quarterly. 24(4) , 300-305 (1991-03-01)
24-4-300-305.pdf928.5 KB

Luteinizing Hormone Releasing Hormone and Placental Gonadotrophins for Theraphy of Ovarian Quiescence in Cattle
Hideo KAMOMAE, Yoshihiro KANEDA, Ikuo DOMEKI, Tatsuo NAKAHARA, JARQ:Japan Agricultural Research Quarterly. 24(4) , 306-314 (1991-03-01)
24-4-306-314.pdf1.27 MB

Serological Survey of Bovine Theileriosis in Malaysia
Shin-ichiro KAWAZU, P. CHANDRAWATHANI, Tsugihiko KAMIO, Tetsuro MINAMI, C. RAJAMANICKAM, Kozo FUJISAKI, JARQ:Japan Agricultural Research Quarterly. 24(4) , 315-318 (1991-03-01)
24-4-315-318.pdf635.74 KB

Maize Production under an Intercropping System with Fast-Growing Tree Species : A case in the Philippines
Akira SATO, Roberto V. DALMACIO, JARQ:Japan Agricultural Research Quarterly. 24(4) , 319-326 (1991-03-01)
24-4-319-326.pdf1.12 MB

Current Progress of Sweet Potato Breeding in Japan
Hisashi KUKIMURA, Katsumi KOMAKI, Masaru YOSHINAGA, JARQ:Japan Agricultural Research Quarterly. 24(3) , 169-174 (1990-12-01)
24-3-169-174.pdf1.07 MB

Establishment of Database on Fruit Trees under the Genebank Project, Japan
Minoru SEKIJIMA, Tetsuro SANADA, Shichiro TSUCHIYA, Mitsuo OMURA, JARQ:Japan Agricultural Research Quarterly. 24(3) , 175-181 (1990-12-01)
24-3-175-181.pdf1.12 MB

Enhancement of Buffer Function in Irrigation Canal Systems 2. A method for deciding buffer capacity
Hideo YOSHINO, Sun Joo KIM, Tatsuo NAKA, Jun ITAKURA, JARQ:Japan Agricultural Research Quarterly. 24(3) , 182-187 (1990-12-01)
24-3-182-187.pdf894 KB

A New Gibberellin Bioassay: A Proposed Method for Its Systematic Analysis
Takaaki NISHIJIMA, Naoki KATSURA, Hiroko YAMAJI, JARQ:Japan Agricultural Research Quarterly. 24(3) , 188-194 (1990-12-01)
24-3-188-194.pdf982.1 KB

Timothy Breeding in Japan
Seiichi UEDA, JARQ:Japan Agricultural Research Quarterly. 24(3) , 195-201 (1990-12-01)
24-3-195-201.pdf1.15 MB

Whole Crop and Straw Silages Treated with Sodium Hydroxide for Feeding Beef Cattle
Tamotsu TOBINO, Noboru MIKAMI, Akio YAMAZAKI, Ryoei KOBAYASHI, JARQ:Japan Agricultural Research Quarterly. 24(3) , 202-208 (1990-12-01)
24-3-202-208.pdf973.9 KB

Effect of Suckling Stimulation and Milk Yield on Postpartum Ovarian Activity and Uterine Involution in Grazing Beef Cows
Yoshiaki IZAIKE, JARQ:Japan Agricultural Research Quarterly. 24(3) , 209-215 (1990-12-01)
24-3-209-215.pdf1.08 MB

Epidemiology of Ovine Scrapie in Japan
Takashi ONODERA, Makoto HARITANI, Minoru NARITA, Michio NAKAGAWA, JARQ:Japan Agricultural Research Quarterly. 24(3) , 216-218 (1990-12-01)
24-3-216-218.pdf510.02 KB

Diagnosis of Chicken Anemia Agent Infection
Noboru YUASA, JARQ:Japan Agricultural Research Quarterly. 24(3) , 219-223 (1990-12-01)
24-3-219-223.pdf791.73 KB

Quality of Soybeans for Processed foods in Japan
Harue TAIRA, JARQ:Japan Agricultural Research Quarterly. 24(3) , 224-230 (1990-12-01)
24-3-224-230.pdf919.63 KB

Epidemiology and Pathogenicity of Bovine Theileriosis in Malaysia
Tsugihiko KAMIO, Christopher RAJAMANICKAM, Shin-ichiro KAWAZU, Kozo FUJISAKI, JARQ:Japan Agricultural Research Quarterly. 24(3) , 231-234 (1990-12-01)
24-3-231-234.pdf633.3 KB

Coppice Growth of Some Tropical Tree Speciesin Mindanao Island, the Philippines
Koichi KAMO, Akira SATO, Artemio L. JAVING, JARQ:Japan Agricultural Research Quarterly. 24(3) , 235-241 (1990-12-01)
24-3-235-241.pdf1.14 MB

Effect of Soil Types on the Growth of Shoots and Roots and the Grain Yields of Wheat Varieties
Akiko SATO, Kazuhiro SUENAGA, Hiroyuki TAKADA, Kazumi KAWAGUCHI, JARQ:Japan Agricultural Research Quarterly. 24(2) , 83-90 (1990-10-01)
24-2-083-090.pdf1.17 MB

Inducible Expression of Pathogenesis-Related 1 Protein Gene in Transformed Plants
Yuko OHASHI, Masahiro OHSHIMA and Makoto MATSUOKA, JARQ:Japan Agricultural Research Quarterly. 24(2) , 91-99 (1990-10-01)
24-2-091-099.pdf1.16 MB

Enhancement of Buffer Function in Irrigation Canal Systems 1. Necessity of enhancement of buffer function
Hideo YOSHINO, Sun Joo KUM, Tatsuo NAKA, Jun ITAKURA, JARQ:Japan Agricultural Research Quarterly. 24(2) , 100-104 (1990-10-01)
24-2-100-104.pdf953.57 KB

Anaerobically Treated Tea and Its Hypotensive Effects
Katsuhiro HAKAMATA, JARQ:Japan Agricultural Research Quarterly. 24(2) , 105-110 (1990-10-01)
24-2-105-110.pdf954.32 KB