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
Relationships between Light Conditions and Biomass of Floor Vegetation in a Tropical Forest
Nobuyuki TANAKA, Masahiro SA1TO, Yoichi KANAZAWA, Loretto V. De La CRUZ, JARQ:Japan Agricultural Research Quarterly. 26(1) , 75-79 (1992-07-01)
26-1-075-079.pdf787.35 KB
Proteins Encoded by Genes Linked With a Semidwarfing Gene in Rice
Hisashi HIRANO, Atsushi NAKAMURA, Fumio KIKUCHI, Setsuko KOMATSU, JARQ:Japan Agricultural Research Quarterly. 25(4) , 223-229 (1992-03-01)
25-4-223-229.pdf1.03 MB
Transposable Elements in Rice Plant
Hirohiko HIROCHIKA, Atsushi FUKUCHI, JARQ:Japan Agricultural Research Quarterly. 25(4) , 230-237 (1992-03-01)
25-4-230-237.pdf1.29 MB
Allelopathy of Velvetbean: Its Discrimination and Indentification of L-DOPA as a Candidate of Allelopathic Substances
Yoshiharu FUJII, Tomoko SHIBUYA, Tamaki YASUDA, JARQ:Japan Agricultural Research Quarterly. 25(4) , 238-247 (1992-03-01)
25-4-238-247.pdf1.5 MB
Monitoring Fresh Weight of Leaf Lettuce 1. Instrument for continuous measurement
Hiroshi HAMAMOTO, Masayuki ODA, JARQ:Japan Agricultural Research Quarterly. 25(4) , 248-252 (1992-03-01)
25-4-248-252.pdf801.22 KB
Allopatry of the Pathogenic Species of Typhula, Snow Mold Fungi: Its Ecological Implication
Naoyuki MATSUMOTO, JARQ:Japan Agricultural Research Quarterly. 25(4) , 253-258 (1992-03-01)
25-4-253-258.pdf1.04 MB
A New Registered Cultivar “Natsuyutaka” of Guineagrass, Panicum maximum Jacq
Hiroyasu SATO, Norihiko SHIMIZU, Hitoshi NAKAGAWA Hidemichi MATSUOKA, JARQ:Japan Agricultural Research Quarterly. 25(4) , 259-266 (1992-03-01)
25-4-259-266.pdf1.09 MB
Pasture Renovation Techniques of Digitaria decumbens and Lotononis bainesii Mixture
Haruhiko FUJITA, JARQ:Japan Agricultural Research Quarterly. 25(4) , 267-273 (1992-03-01)
25-4-267-273.pdf1.13 MB
Technology and Management Index Model in 2000 for the Development of Animal Industry in Japan
Masaaki TAKEMASA, Hironobu IWAKATA, JARQ:Japan Agricultural Research Quarterly. 25(4) , 274-277 (1992-03-01)
25-4-274-277.pdf624.58 KB
Bacteriological and Serological Survey of Avian Mycoplasmosis in Peninsula Malaysia
Koshi YAMAMOTO, ZAINI bt. Mohd. Zain, TAN Lin Jee, Chikara KUNIYASU, JARQ:Japan Agricultural Research Quarterly. 25(4) , 278-282 (1992-03-01)
25-4-278-282.pdf958.53 KB
Chemical Characteristics and Utilization of Oil Palm Trunks
Yoichi TOMIMURA, JARQ:Japan Agricultural Research Quarterly. 25(4) , 283-288 (1992-03-01)
25-4-283-288.pdf754.54 KB
A Simple Method for Morphogenic Calli Formation from Protoplasts in Sugarcane
Akira SUGIMOTO, Makoto MATSUOKA, Isao YAMAGUCHI, Shinjiro KATO, JARQ:Japan Agricultural Research Quarterly. 25(4) , 289-293 (1992-03-01)
25-4-289-293.pdf787.11 KB
Surface-Sowing of Legume Seed in Savanna of South America
Yoichi NADA, Yasuo OGAWA, Tsuyoshi MITAMURA, JARQ:Japan Agricultural Research Quarterly. 25(4) , 294-308 (1992-03-01)
25-4-294-302.pdf1.26 MB
A New Method for Predicting Flowering Stage in Soybean
Ryoji SAMESHIMA, JARQ:Japan Agricultural Research Quarterly. 25(3) , 149-153 (1991-12-01)
25-3-149-153.pdf783.89 KB
Oochikara: A Rice Cultivar in Japan with Large-Sized Grains
Kiyoyuki MIURA, Akira KOBAYASHI, JARQ:Japan Agricultural Research Quarterly. 25(3) , 154-158 (1991-12-01)
25-3-154-158.pdf693.63 KB
Remote and Real-Time Sensing of Transpiration and Stomatal Resistance Based on Infrared Thermometry
Yoshio INOUE, JARQ:Japan Agricultural Research Quarterly. 25(3) , 159-164 (1991-12-01)
25-3-159-164.pdf968.49 KB
Emission and Production of Methane in the Paddy Fields of Japan
Kazuyuki YAGI, Katsuyuki MINAMI, JARQ:Japan Agricultural Research Quarterly. 25(3) , 165-171 (1991-12-01)
25-3-165-171.pdf981.67 KB
Diseases of Major Crops in Paraguay
Toshihiko KATUSBE, Maria Isabel ROMERO, JARQ:Japan Agricultural Research Quarterly. 25(3) , 172-175 (1991-12-01)
25-3-172-175.pdf615.92 KB
Distribution Pattern of Photosynthetic Assimilatesas Affected by Phyllotaxis and Vascular System in Tomato Plants
Yoshihiro SHISHIDO, JARQ:Japan Agricultural Research Quarterly. 25(3) , 176-180 (1991-12-01)
25-3-176-180.pdf855.09 KB
Ecological Studies on Pathogen of Melon Hairy Root
Toshiki SHIOMI, JARQ:Japan Agricultural Research Quarterly. 25(3) , 181-184 (1991-12-01)
25-3-181-184.pdf594.87 KB
In Vitro Propagation Techniques of Tea Plants
Yoriyuki NAKAMURA, JARQ:Japan Agricultural Research Quarterly. 25(3) , 185-194 (1991-12-01)
25-3-185-194.pdf1.36 MB
Breeding of New Cultivars of Perennial Ryegrass in Japan
Shin-ichi SUGITA, JARQ:Japan Agricultural Research Quarterly. 25(3) , 195-201 (1991-12-01)
25-3-195-201.pdf1.05 MB
Varietal Differences in Nutritive Values of Mulberry Leaves for Rearing Silkworms
Hiroaki MACHII, Koitsu KATAGIRI, JARQ:Japan Agricultural Research Quarterly. 25(3) , 202-208 (1991-12-01)
25-3-202-208.pdf1.11 MB
Mechanized Direct Seeding of Rice in Muda, Malaysia
Yutaka KANETANI, Mohamud FAUZI B. Hj. Mansor, JARQ:Japan Agricultural Research Quarterly. 25(3) , 209-213 (1991-12-01)
25-3-209-213.pdf859.83 KB
Methods for Estimating Evapotranspiration under Wet and Arid Field Conditions
Taichi MAKI, JARQ:Japan Agricultural Research Quarterly. 25(3) , 214-221 (1991-12-01)
25-3-214-221.pdf1.12 MB
Uptake, Assimilation and Translocation of Nitrogen by Crops
Tadakatsu YONEYAMA, JARQ:Japan Agricultural Research Quarterly. 25(2) , 75-82 (1991-10-01)
25-2-075-082.pdf1.39 MB
Nitrogen Fixation and Metabolism in Soybean Plants
Shoichiro AKAO, JARQ:Japan Agricultural Research Quarterly. 25(2) , 83-87 (1991-10-01)
25-2-083-087.pdf911.99 KB
15N-NH4+ Isotope Dilution Method for Analyzing Nitrogen Transformation in Upland Soils
Takashi NISHIO, JARQ:Japan Agricultural Research Quarterly. 25(2) , 88-92 (1991-10-01)
25-2-088-092.pdf966.62 KB
Fertilizer-Nitrogen Absorption Determined by the 15N Isotopic and Difference Methods
Junichi YAMAGUCHI, JARQ:Japan Agricultural Research Quarterly. 25(2) , 93-100 (1991-10-01)
25-2-093-100.pdf1.21 MB
Quantitative Estimates of the Budgets of Nitrogen Applied as Fertilizer, Urine and Feces in a Soil-Grass System
Takeshi KIMURA, Kenji KURASHIMA, JARQ:Japan Agricultural Research Quarterly. 25(2) , 101-107 (1991-10-01)
25-2-101-107.pdf1.02 MB