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

Use of lacZ and gusA Reporter Genes to Trace the Infection Process of Nitrogen-Fixing Bacteria
Shoichiro AKAO, Yasuo MINAKAWA, Hiromi TAKI, M.K.KHAN, Ken-Ichi YUHASHI, Yasuji NAKAYAMA, Constancio A. ASIS Jr, Vladimir CHEBOTAR, Ui-Gum KANG, Kiwamu MINAMISAWA, Robert W. RIDGE, JARQ:Japan Agricultural Research Quarterly. 33(2) , 77-84 (1999-04-01)
33-2-077-084.pdf1.4 MB

Use of Soil Animals as Bioindicators of Various Kinds of Soil Management in Northern Japan
Yoshinari ENAMI, Hiroyoshi SHIRAISHI, Yoshio NAKAMURA, JARQ:Japan Agricultural Research Quarterly. 33(2) , 85-89 (1999-04-01)
33-2-085-089.pdf894.7 KB

Evaluation of Soil Fertility Status of Lowland Areas in the Philippines
Kenzo MIURA, Rodrigo B. BADAYOS, JARQ:Japan Agricultural Research Quarterly. 33(2) , 91-96 (1999-04-01)
33-2-091-096.pdf1.07 MB

Operation of a Diesel Engine Using Unrefined Rapeseed Oil as Fuel
Chiyuki TOGASHI, Jun-ichi KAMIDE, JARQ:Japan Agricultural Research Quarterly. 33(2) , 97-103 (1999-04-01)
33-2-097-103.pdf1.13 MB

Estimation of Flowering Date and Temperature Characteristics of Fruit Trees by DTS Method
Sukeyuki ONO, Takamitsu KONNO, JARQ:Japan Agricultural Research Quarterly. 33(2) , 105-108 (1999-04-01)
33-2-105-108.pdf723.07 KB

Mechanism of Off-Flavor Production in Brassica Vegetables under Anaerobic Conditions
Kazuhiro DAN, Masayasu NAGATA, Ichiji YAMASHITA, JARQ:Japan Agricultural Research Quarterly. 33(2) , 109-114 (1999-04-01)
33-2-109-114.pdf1.06 MB

Development of Silk Yarns for Knitted Fabrics
Hiroshi KATO, Tamako HATA, JARQ:Japan Agricultural Research Quarterly. 33(2) , 115-124 (1999-04-01)
33-2-115-124.pdf1.81 MB

Screening of Thermophilic Lactic Acid Bacteria Producing Bacteriocins in the Tropics
Sadahiro OHMOMO, Miho KOBAYASHI, Mizuo YAJIMA, Puangpen SUYANANDANA, Paipan SUDKA, Praphaisri BOMCHAI, JARQ:Japan Agricultural Research Quarterly. 33(2) , 125-131 (1999-04-01)
33-2-125-131.pdf1.15 MB

Cloning and Identification of the Lactococcin A and M Gene Cluster from Lactococcus lactis subsp. Lactis biovar diacetylactis DRC1
Yasuhito FUJITA, Takashi OKAMOTO, JARQ:Japan Agricultural Research Quarterly. 33(2) , 133-137 (1999-04-01)
33-2-133-137.pdf858.5 KB

Pathology of Acute Necrotizing Mastitis Caused by Staphylococcus aureus in a Dairy Cow
Tomoyuki SHIBAHARA, Kikuyasu NAKAMURA, JARQ:Japan Agricultural Research Quarterly. 33(2) , 139-142 (1999-04-01)
33-2-139-142.pdf888.39 KB

Distribution and RFLP Mapping of Complementary Genes Causing Hybrid Breakdown in Asian Cultivated Rice, Oryza sativa L.
Kazutoshi OKUNO, Shuichi FUKUOKA, JARQ:Japan Agricultural Research Quarterly. 33(1) , 1-6 (1999-01-01)
33-1-001-006.pdf1000.34 KB

Groundwater Pollution by Cattle Slurry Stored in Unlined Lagoon
Kenji KANAZAWA, Naomichi MIYAJI, Takashi KUSABA, Kazuaki BAN, Yoshihiko HAYAKAWA, Ryusuke HATANO, JARQ:Japan Agricultural Research Quarterly. 33(1) , 7-13 (1999-01-01)
33-1-007-013.pdf1.01 MB

Direct Acquisition of Organic Nitrogen by Crops
Makoto YAMAGATA, Noriharu AE, JARQ:Japan Agricultural Research Quarterly. 33(1) , 15-21 (1999-01-01)
33-1-015-021.pdf996.5 KB

Papaya Ring Spot, Banana Bunchy Top, and Citrus Greening in the Asia and Pacific Region : Occurrence and Control Strategy
Keizi KIRITANI, Hong-Ji SU, JARQ:Japan Agricultural Research Quarterly. 33(1) , 23-30 (1999-01-01)
33-1-023-030.pdf1.41 MB

Raising and Transplanting Technology for Long Mat with Hydroponically Grown Rice Seedlings
Kohei TASAKA, JARQ:Japan Agricultural Research Quarterly. 33(1) , 31-37 (1999-01-01)
33-1-031-037.pdf1 MB

Study on the Development of a Precision Control Method for Semi-Trailed Agricultural Machinery for Tracing the Track of the Tractor
Nobuki YAMANA, Tomohiro TAKIGAWA, Akira HIRATA, Masahiro KAMEI, JARQ:Japan Agricultural Research Quarterly. 33(1) , 39-46 (1999-01-01)
33-1-039-046.pdf1.24 MB

Evaporation and Percolation Control in Small Farm Ponds in Thailand
Kosho DAIGO, Virote PHAOVATTANA, JARQ:Japan Agricultural Research Quarterly. 33(1) , 47-56 (1999-01-01)
33-1-047-056.pdf1.2 MB

Summer-Sown Cultivation of Forage Oats and Breeding in Japan
Masaaki KATSURA, JARQ:Japan Agricultural Research Quarterly. 33(1) , 57-63 (1999-01-01)
33-1-057-063.pdf1.06 MB

Infection and Development of Nosema sp. NIS H5 (Microsporida: Protozoa) in Several Lepidopteran Insects
Syoji HAYASAKA, Naoyuki YONEMURA, JARQ:Japan Agricultural Research Quarterly. 33(1) , 65-68 (1999-01-01)
33-1-065-068.pdf671.76 KB

Production of Shochu Spirit from Crushed Rice by Non-Cooking Fermentation
Kenryo NISHIMURA, Kenji KIDA, Masaru NAKAGAWA, Kimi TSUCHIYA, Yorikazu SONODA, JARQ:Japan Agricultural Research Quarterly. 33(1) , 69-75 (1999-01-01)
33-1-069-075.pdf1.14 MB

Isolation of Individual Quantitative Trait Loci Causing Long Grain in Rice
Tsuneo KATO, JARQ:Japan Agricultural Research Quarterly. 32(4) , 233-238 (1998-10-01)
32-4-233-238.pdf1000.52 KB

Optimizing the Particle Bombardment Method for Efficient Genetic Transformation
Takashi HAGIO, JARQ:Japan Agricultural Research Quarterly. 32(4) , 239-247 (1998-10-01)
32-4-239-247.pdf1.45 MB

Development of Automatic Fog Culture System for Year-Round Rice Production in Greenhouse
Yuichi NAGAYA, Takeshi MATSUOKA, Takanori KOBAYASHI, Tetsuro TANIYAMA, JARQ:Japan Agricultural Research Quarterly. 32(4) , 249-256 (1998-10-01)
32-4-249-256.pdf1.19 MB

Study on Grade Judgment of Fruit Vegetables Using Machine Vision
Masateru NAGATA, Qixin Cao, JARQ:Japan Agricultural Research Quarterly. 32(4) , 257-265 (1998-10-01)
32-4-257-265.pdf1.26 MB

Varietal Differences in Female Flower Bearing Ability and Evaluation Method in Watermelon
Keita SUGIYAMA, JARQ:Japan Agricultural Research Quarterly. 32(4) , 267-273 (1998-10-01)
32-4-267-273.pdf1.04 MB

Improvement of Postharvest Life in Several Cut Flowers by the Addition of Sucrose
Kazuo ICHIMURA, JARQ:Japan Agricultural Research Quarterly. 32(4) , 275-280 (1998-10-01)
32-4-275-280.pdf1.16 MB

Plant Regeneration via Shoot Organogenesis from Cotyledons in Two Wild Cucumis Species, C. Figarei and C. metuliferus
Yutaka TABEI, Tomohiro YAMADA, Toshikazu MORISHITA, Takeshi OSAKI, JARQ:Japan Agricultural Research Quarterly. 32(4) , 281-286 (1998-10-01)
32-4-281-286.pdf1.11 MB

Agrobacterium tumefaciens -Mediated Gene Transfer to Tea Plant (Camellia sinensis) Cells
Satoru MATSUMOTO, Masaoki FUKUI, JARQ:Japan Agricultural Research Quarterly. 32(4) , 287-291 (1998-10-01)
32-4-287-291.pdf866.86 KB

Decontamination of Dry Food Ingredients with “Soft-Electrons” (Low-Energy Electrons)
Toru HAYASHI, JARQ:Japan Agricultural Research Quarterly. 32(4) , 293-299 (1998-10-01)
32-4-293-299.pdf1.12 MB

Alginate Encapsulation Technique and Cryogenic Procedures for Long-Term Storage of the Tropical Forest Tree Guazuma crinita Mart. In Vitro Cultures
Emilio MARUYAMA, Katsuaki ISHII, Isao KINOSHITA, JARQ:Japan Agricultural Research Quarterly. 32(4) , 301-309 (1998-10-01)
32-4-301-309.pdf1.64 MB