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

Genetic Differentiation of Rice Germplasm Collected in Northern Pakistan
Masumi KATSUTA, Kazutoshi OKUNO, Mohammad AFZAL, Rashid ANWAR, JARQ:Japan Agricultural Research Quarterly. 30(2) , 61-67 (1996-04-01)
30-2-061-067.pdf1.19 MB

Properties and Distribution Patterns of Red-Yellow and Related Soils in the Philippines
Tadao HAMAZAKI, Eduardo P. PANINGBATAN, Jr., JARQ:Japan Agricultural Research Quarterly. 30(2) , 69-78 (1996-04-01)
30-2-069-078.pdf1.55 MB

Characterization and Origin of Protease Activity in Cultivated Soils
Koichi HAYANO, JARQ:Japan Agricultural Research Quarterly. 30(2) , 79-84 (1996-04-01)
30-2-079-084.pdf1.02 MB

Epidemiology of Bacterial Grain Rot of Rice Caused by Pseudomonas glumae
Seiya TSUSHIMA, JARQ:Japan Agricultural Research Quarterly. 30(2) , 85-89 (1996-04-01)
30-2-085-089.pdf914.71 KB

Races of Bipolaris maydis Occurring in Japan and Their Pathogenicity to the rhm Resistant Corn Line
Takao TSKIBOSHI, Hironori KOGA, Tsutomu UEMATSU, JARQ:Japan Agricultural Research Quarterly. 30(2) , 91-96 (1996-04-01)
30-2-091-096.pdf1 MB

Persistency of Grass and Legume Varieties Bred in the Warm Region of Japan ー Achievements of plant breeding revealed in the collaborative research between Japan and France ー
Fumihiro FUJIMOTO, Hidekazu YAMAGUCHI, Kazuhiko MIZUNO, Michio KANBE, Claude MUSSET, Julien JADAS-HECART, Gerard GEIER, JARQ:Japan Agricultural Research Quarterly. 30(2) , 97-105 (1996-04-01)
30-2-097-105.pdf1.39 MB

Energy Requirements and Feed of Dairy Cows under High Temperature Conditions
Mitsunori KURIHARA, JARQ:Japan Agricultural Research Quarterly. 30(2) , 107-112 (1996-04-01)
30-2-107-112.pdf982.87 KB

Post partum Uterine Involution in the Cow
Akira OKANO, Tsuneo TOMIZUKA, JARQ:Japan Agricultural Research Quarterly. 30(2) , 113-121 (1996-04-01)
30-2-113-121.pdf1.62 MB

Utilization of 20-Hydroxyecdysone Extracted from a Plant in Sericulture
Osamu NINAGI, Makoto MARUYAMA, JARQ:Japan Agricultural Research Quarterly. 30(2) , 123-128 (1996-04-01)
30-2-123-128.pdf927.11 KB

Accelerated Maturation of Cheese by Proteolytic Enzymes Produced by Brevibacterium lines
Kiyoshi HAYASHI, JARQ:Japan Agricultural Research Quarterly. 30(2) , 129-137 (1996-04-01)
30-2-129-137.pdf1.48 MB

In Vitro Propagation of Hybrid Rice (Oryza sativa L.) 1. “Tissue-cultured” shoot primordial
Taiji YOSHIDA, JARQ:Japan Agricultural Research Quarterly. 30(1) , 1-8 (1996-01-01)
30-1-001-008.pdf1.32 MB

In Vitro Propagation of Hybrid Rice (Oryza sativa L.) 2. Vertical, rotatory liquid culture of multiple shoots and field performance
Taiji YOSHIDA, Hiroshi KATO, JARQ:Japan Agricultural Research Quarterly. 30(1) , 9-14 (1996-01-01)
30-1-009-014.pdf1020.72 KB

Inheritance of Seed Coat Cracking and Effective Selection Method for the Resistance in Soybean
Akinori OKABE, JARQ:Japan Agricultural Research Quarterly. 30(1) , 15-20 (1996-01-01)
30-1-015-020.pdf1014.08 KB

Isolation of Protoplasts from Suspension Culture and Subsequent Shoot Regeneration in Sugarcane
Makoto MATSUOKA, Takayoshi TERAUCHI, Makoto KOBAYASHI,
Moriyuki SHODA, Hiroshi NAKANO, JARQ:Japan Agricultural Research Quarterly. 30(1) , 21-26 (1996-01-01)
30-1-021-026.pdf979.88 KB

Effect of Phosphorus Content on the Emergence of Tillers in Wheat Cultivars
Akiko SATO, Atsumi OYANAGI, Michihiro WADA, JARQ:Japan Agricultural Research Quarterly. 30(1) , 27-30 (1996-01-01)
30-1-027-030.pdf687.53 KB

First Occurrence of Sudden Death Syndrome of Soybean in Brazil
Takashi NAKAJIMA, Takao MITSUEDA, and Maria Jose D'Avila CHARCHAR, JARQ:Japan Agricultural Research Quarterly. 30(1) , 31-34 (1996-01-01)
30-1-031-034.pdf656.47 KB

Development of Chinese Cabbage Harvester
Mikio KANAMITSU, Kenji YAMAMOTO, JARQ:Japan Agricultural Research Quarterly. 30(1) , 35-41 (1996-01-01)
30-1-035-041.pdf1.09 MB

Current Approach to Soil and Water Conservation for Upland Agriculture in Thailand
Hiroyasu KOBAYASHI, JARQ:Japan Agricultural Research Quarterly. 30(1) , 43-48 (1996-01-01)
30-1-043-048.pdf963.77 KB

Effect of Non-Woven Rowcover on Plant Environment and Growth
Hiroshi HAMAMOTO, JARQ:Japan Agricultural Research Quarterly. 30(1) , 49-53 (1996-01-01)
30-1-049-053.pdf824.27 KB

Studies on Pan Cooking of Indian Bivoltine Cocoons
Kozo TSUBOUCHI, Subhas Venkappa NAIK, T.H. SOMASHEKAR, JARQ:Japan Agricultural Research Quarterly. 30(1) , 55-60 (1996-01-01)
30-1-055-060.pdf975.19 KB

A New Method for Estimation Quality Deterioration of Agricultural Product
Ikuo SUDA, Shu FURUTA, Yoichi NISHIBA, JARQ:Japan Agricultural Research Quarterly. 29(4) , 207-213 (1995-10-01)
29-4-207-213.pdf1.04 MB

Varietal Differences in Storage Root Quality and Physiological Factors in Sweetpotato
Yasuhiro TAKAHATA, JARQ:Japan Agricultural Research Quarterly. 29(4) , 215-221 (1995-10-01)
29-4-215-221.pdf1.24 MB

Runoff Loadings and Chemical Forms of Soil Phosphorus from Rivers in Japan during the High Flow Stages
Katsuhisa TANAKA, JARQ:Japan Agricultural Research Quarterly. 29(4) , 223-229 (1995-10-01)
29-4-223-229.pdf1.01 MB

Models for Analyzing Water Quality Environment
Yoshito YUYAMA, Hideo YOSHINO, Hideto FUJII, JARQ:Japan Agricultural Research Quarterly. 29(4) , 231-239 (1995-10-01)
29-4-231-239.pdf1.36 MB

Effects of Temperature and Light Conditions on Flower Initiation and Fruit Development in Strawberry
Hiroshi KUMAKURA, Yoshihiro SHISHIDO, JARQ:Japan Agricultural Research Quarterly. 29(4) , 241-250 (1995-10-01)
29-4-241-250.pdf1.54 MB

Screening of Lactic Acid Bacteria Suitable for Silage-Making in Tropical Regions
Sadahiro OHMOMO, Nobuya KATAYAMA, WanchernPOTACHAROEN, Osamu TANAKA, Suntud SIRIANUNTAPIBOON, Poonsook ATTHASAMPUNNA, JARQ:Japan Agricultural Research Quarterly. 29(4) , 251-256 (1995-10-01)
29-4-251-256.pdf969.25 KB

Development of Cone Penetrometer for Investigation of Soil Compaction Caused by Agricultural Vehicles in Meadows
Yukinori SHIBUYA, Takashi SEGAWA, Katsuhiko TAMAKI, JARQ:Japan Agricultural Research Quarterly. 29(4) , 257-262 (1995-10-01)
29-4-257-262.pdf875.69 KB

Trends of Epidemics of Bovine Infectious Diseases in Japan during 1987-1993
Takashi OGAWA, Masashi ISHIKAWA, Tadahiro INOUE, JARQ:Japan Agricultural Research Quarterly. 29(4) , 263-267 (1995-10-01)
29-4-263-267.pdf755.04 KB

Microbial Growth Suppression in Food Using Calcinated Calcium
Kenji ISSHIKI, Keiko AZUMA, JARQ:Japan Agricultural Research Quarterly. 29(4) , 269-274 (1995-10-01)
29-4-269-274.pdf989.33 KB

Site Environments and Stand Structure of the Mangrove Forests on Pohnpei Island, Micronesia
Kiyoshi FUJIMOTO, Ryuichi TABUCHI, Tokunori MORI, Tamon MUROFUSHI, JARQ:Japan Agricultural Research Quarterly. 29(4) , 275-284 (1995-10-01)
29-4-275-284.pdf1.51 MB