Halopriming in the submergence-tolerant rice variety improved the resilience to salinity and combined salinity-submergence at the seedling stage. Julie Ann Mher Alcances Libron, Hana Haruna Putri, Emmanuel Kiprono Bore, Rael Chepkoech, Isao Akagi, Emmanuel Odama, Keita Goto, Shotaro Tamaru, Shin Yabuta, and Jun-Ichi Sakagami. Plant Physiology and Biochemistry 論文リンク
2023
Spatial O2 Profile in Coix lacryma-jobi and Sorghum bicolor along the Gas Diffusion Pathway under Waterlogging Conditions. Shotaro Tamaru, Keita Goto and Jun-Ichi Sakagami. Plants, 13(1), 3 論文リンク
Effect of P-Dipping on Growth of NERICA 4 Rice in Different Soil Types at Initial Growth Stages. Emmanuel Odama, Yasuhiro Tsujimoto, Shin Yabuta, Isao Akagi, Rael Chepkoech, Ibrahim Soe and Jun-Ichi Sakagami.Sustainability, 15(21), 15402 論文リンク
Improvement of Nutrient Uptake, Yield of Black Sesame (Sesamum indicum L.), and Alluvial Soil Fertility in Dyke by Spent Rice Straw from Mushroom Cultivation as Biofertilizer Containing Potent Strains of Rhodopseudomonas palustris. Nguyen Quoc Khuong,Le Vinh Thuc,Cao Tien Giang,Ly Ngoc Thanh Xuan,Le Thi My Thu,Akagi Isao,and Sakagami Jun-Ichi.The Scientific World Journal, vol. 2023, Article ID 1954632, 14 pages. 論文リンク
P-dipping improved NERICA 4 rice seedling resilience to water and nutrient stresses under rainfed-like conditions. Emmanuel Odama, Yasuhiro Tsujimoto, Shin Yabuta, Isao Akagi, Jun-Ichi Sakagami. Rhizosphere. Volume 26:100688 論文リンク
Evaluation of the antagonistic potential of Trichoderma spp. against Fusarium oxysporum F.28.1A. Nguyen Quoc Khuong, Cao Thi Thuy Trang, Do Thi Xuan, Le Thanh Quang,Tran Ngoc Huu, Ly Ngoc Thanh Xuan, Jun-Ichi Sakagami, Le Vinh Thuc. Journal of Plant Protection Research volume63(1) 論文リンク
Primed Seeds of NERICA 4 Stored for Long Periods under High Temperature and Humidity Conditions Maintain Germination Rates. Emmanuel Kiprono Bore, Eri Ishikawa, Julie Ann Mher Alcances Libron, Keita Goto, Emmanuel Odama, Yoshihiro Nakao, Shin Yabuta and Jun-Ichi Sakagami. Applied Sciences Volume 13(5) 論文リンク
Responses of roots and leaves in nine varieties of chili pepper (Capsicum annuumL.) to water saturated rhizosphere. Erna Siaga,Jun-Ichi Sakagami,Benyamin Lakitan,Shin Yabuta,Kartika Kartika, andLaily Ilman Widuri. AIP Conference Proceedings 2583, 020025 論文リンク
Oxygen consumption and transportation in rice roots are highly dependent on leaf area and root dry weight ratio. Shotaro Tamaru, Shin Yabuta, Keita Goto, Phanthasin Khanthavong, Jun-Ichi Sakagami. Rhizosphere 25(1):100644 論文リンク
2022
Root hypoxia causes oxidative damage on photosynthetic apparatus and interacts with light stress to trigger abscission of lower position leaves in Capsicum. Keita Goto, Shin Yabuta , Shotaro Tamaru, Peter Ssenyonga, Bore Emanuel、Naoya Katsuhama, Jun-Ichi Sakagami. Scientia Horticulturae. 305,111337. 論文リンク
Different survival strategies involve carbon translocation rather than de novo C assimilation under complete submergence in rice plant. Arinal Haq Izzawati Nurrahma, Shin Yabuta, Ahmad Junaedi, Jun-Ichi Sakagami. Photosynthesis Research 154(2):1-11 論文リンク
Combinational Variation Temperature and Soil Water Response of Stomata and Biomass Production in Maize, Millet, Sorghum and Rice. Phanthasin Khanthavong, S. Yabuta, A. Malik, M. Hossain, I. Akagi, J. Sakagami. 11(8), 1039; 論文リンク
Drought escape during the late growth stage through early recovery from initial drying stress by hydropriming of upland rice. Nakao, Y., Yoshino, M., Miyamoto, K., Yabuta, S., Kamioka, R., Hatanaka, K., & Sakagami, J. I. Plant Production science. 論文リンク
Vitality of Primed Rice Seeds Sown under Prolonged Dry Soil Conditions in an Upland Field. Nakao, Yoshihiro, Shotaro Tamaru, Shin Yabuta, and Jun‐Ichi Sakagami. Crop Science. 論文リンク
Prospective Rice Varieties for High Yield Performance on Modified Ratoon Salibu Cultivation. ZARWAZI, LALU M, Ahmad Junaedi, DIDY SOPANDIE, SUGIYANTA SUGIYANTA, PURWONO PURWONO, and JUN-ICHI SAKAGAMI. Biodiversitas Journal of Biological Diversity 23, no. 2. 論文リンク
Foliar Application of Boron Positively Affects the Growth, Yield, and Oil Content of Sesame (Sesamum Indicum L.). Khuong, Nguyen Quoc, Le Vinh Thuc, Nguyen Thi Bich Tran, Tran Ngoc Huu, and Jun-Ichi Sakagami. Open Agriculture 7, no. 1: 30-38. 論文リンク
Effects of Nitrogen Fertilization and Nitrogen Fixing Endophytic Bacteria Supplementation on Soil Fertility, N Uptake, Growth, and Yield of Sesame (Sesamum indicum L.) Cultivated on Alluvial Soil in Dykes. Le Vinh Thuc,Tran Ngoc Huu,Trinh Minh Ngoc,Nguyen Hong Hue,Le Thanh Quang,Do Thi Xuan,Tran Chi Nhan,Ly Ngoc Thanh Xuan,Le Thi My Thu,Isao Akagi,Jun-Ichi Sakagami and Nguyen Quoc Khuong. Applied and Environmental Soil Science. Volume 2022, Article ID 1972585 論文リンク
Evaluation of rice genotypes on seed attributes and agronomic performance for developing direct-seeded cultivar. Ahmad Rifqi Fauzi, Ahmad Junaedi, Iskandar Lubis, Munif Ghulamahdi, Hajrial Aswidinnoor, Jun-Ichi Sakagami. AIMS Agriculture and Food : 7(1): 1-21. 論文リンク
2021
Response of leaf water potential, stomatal conductance and chlorophyll content under different levels of soil water, air vapor pressure deficit and solar radiation in chili pepper (Capsicum chinense). Keita Goto, Shin Yabuta, Peter S senyonga, ShotaroTamaru, Jun-Ichi Sakagami. 281, 109943. 論文リンク
The Productiviy of Cassava (Manihot esculenta Crantz) in Kagoshima, Japan, Which Belongs to the Temperate zone. Shin Yabuta, Tamami Fukuta, Shotaro Tamaru, Keita Goto, Yoshihiro Nakao, Phanthasin Khanthavong, Peter Ssenyonga, Jun-Ichi Sakagami. (2021). Agronomy, 11(10). 論文リンク
Biochar-A climate smart practice for milling traits and aroma of fragrant rice under drought stress with different time of harvest. Rajesh Chakraborty, Sakagami Jun-Ichi, Tuhin Suvra Roy, Md. Yeakub Khan, Eti Chakraborty, Gulshanara Khatun, Mehedi Hasan Sumon, Puja Sarkar Moly. Journal of Rice Research from Society for Advancement of Rice Research(VOLUME 14, NO.1) 論文リンク
Rice husk biochar effects on improving soil properties and root development in rice (Oryza glaberrima Steud.) exposed to drought stress during early reproductive stage. Kartika, Kartika, Jun-Ichi Sakagami, Benyamin Lakitan, Shin Yabuta, Isao Akagi, Laily Ilman Widuri, Erna Siaga, Hibiki Iwanaga, and Arinal Haq Izzawati Nurrahma.AIMS Agriculture and Food 6, no. 2: 737-751. 論文リンク
Root Response to Soil Water Status via Interaction of Crop Genotype and Environment. Phanthasin Khanthavong, Shin Yabuta, Hidetoshi Asai, Md. Amzad Hossain, Isao Akagi, Jun-Ichi Sakagami. Agronomy, 11, 708. 論文リンク
Foliar selenium application for improving drought tolerance of sesame (Sesamum indicum L.). Le Vinh Thuc, Jun-Ichi Sakagami, Le Thanh Hung, Tran Ngoc Huu, Nguyen Quoc Khuong,Le Ly Vu Vi. Open Agriculture, 6: 1-9. 論文リンク
Characterizing the photosynthetic ability of the submergence-tolerant rice variety of Inpari30 via maximum quantum yield performance during transient flooding stress and recovery. Nurrahma, A., Shin Yabuta, Ahmad Junaedi, and Jun-Ichi Sakagami. Aust. J. Crop Sci 15(01):107-113. 論文リンク
Effects of Waterlogging on the Growth of Different Varieties of Sesame (Sesamum indicum L.). Mai Nhat Linh, Le Vinh Thuc, Jun-Ichi Sakagami, Susan Orgill, Tran Huu Van, Nguyen Quoc Khuong, Pham Phuoc Nhan. International Journal of Plant Research; 11(1): 1-6. 論文リンク
Effects of spraying gibberellic acid doses on growth, yieldand oil content in black sesame (Sesamum indicum L.). Thuc, L.V., J.I. Sakagami, N.Q. Khuong, S. Orgill, T.N. Huu, N.T.T. Lang and P.P. Nhan. Asian J. Crop Sci., 13 : 1-8. 論文リンク
Analysis of Non-Structural Carbohydrate in Relation with Shoot Elongation of Rice under Complete Submergence. Nurrahma AHI, Yabuta S, Junaedi A, Sakagami J-I. Sustainability. 2021; 13(2):670. 論文リンク
Effect of soil moisture stress at booting and flowering stages on pollen development, pollination and fertilization in upland NERICA cultivars. IWATA-HIGUCHI, Momoko, Jun-Ichi SAKAGAMI, and Sachio MARUYAMA. Aust. J. Crop Sci 14(12):1935-1941. 論文リンク
2020
Genetic Diversity of Hydro Priming Effects on Rice Seed Emergence and Subsequent Growth under Different Moisture Conditions. Nakao Yoshihiro, Chiharu Sone, and Jun-Ichi Sakagami. Genes 11.9 (2020): 994. 論文リンク
Short-term drought exposure decelerated growth and photosynthetic activities in chili pepper (Capsicum annuum L.). Laily Ilman Widuria, Benyamin Lakitan, Junichi Sakagami, Shin Yabuta, KartikaKartika, Erna Siaga. Annals of Agricultural Sciences, 65:149-158. 論文リンク
Morpho-physiological response of common buckwheat (Fagopyrum esculentum) to flooding stress at different growth stages. Ju-Young Choi, Seong-Woo Cho, Jae-Buhm Chun, Soo Jeong Kwon, Swapan Kumar Roy, Jwa-Kyung Sung, Sun-Hee Woo, Jun-Ichi Sakagami. Journal of Crop Science and Biotechnology. https://doi.org/10.1007/s12892-020-00044-7 論文リンク
Plant adaptations to anaerobic stress caused by flooding. J-I Sakagami, Y Iwata, A H I Nurrahma, E Siaga, A Junaedi and S Yabuta. IOP Conf. Ser.: Earth Environ. Sci. DOI: 10.1088/1755-1315/418/1/012080 論文リンク
Morpho-physiological responses of chili peppers (Capsicum annuum) to short-term exposure of water-saturated rhizosphere. Erna Siaga, Jun-Ichi Sakagami, Benyamin Lakitan, Shin Yabuta, Hasbi Hasbi, Siti Masreah Bernas, Kartika Kartika, Laily Ilman Widuri. AJCS 13:1865-1872. 論文リンク
Isolation and Molecular Characterization of Phosphate Solubilizing Filamentous Fungi from Subtropical Soils in Okinawa, Japan. Islam M. K., Sano A., Majumder M. S. I., Sakagami J-I., Hossain M. A. Applied Ecology and Environmental Research 17:9145-9157. 論文リンク
Evaluation of Organic Acid Production Potential of Phosphate Solubilizing Fungi Isolated from Soils in Okinawa, Japan. Islam M. K., Sano A., Majumder M. S. I., Sakagami J-I., Gima S., Hossain M. A. Applied Ecology and Environmental Research 17: 15191-15201. 論文リンク
Effect of Soil Moisture Stress at Panicle Development Stage on Spikelet Differentiation and Degeneration of Upland NERICA Cultivars IWATA‐HIGUCHI Momoko, SAKAGAMI Jun-Ichi, MARUYAMA Sachio Tropical Agriculture and Development 63:150-159. 論文リンク
Effect of Soil Moisture Stress at Panicle Development Stage on Growth and Yield of Upland NERICA Cultivars IWATA‐HIGUCHI Momoko, SAKAGAMI Jun-Ichi, MARUYAMA Sachio Tropical Agriculture and Development 63:140-149. 論文リンク
Performance of Bangladesh indigenous rice in a weed infested field and separation of allelopathy from resource competition Sheikh Muhammad Masum, Mohammad Amzad Hossain, Hikaru Akamine, Jun Ichi Sakagami, Takahiro Ishii, Ichiro Nakamura, Md Asaduzzaman, Prasanta Chitta Bhowmik Weed Biology and Management 19:39-50. 論文リンク
Phenological Changes in the Chlorophyll Content and Its Fluorescence in Field-Grown Sugarcane Clones Under Over-Wintering Conditions Takeo Sakaigaichi, Hiroka Tsuchida, Katsuki Adachi, Taiichiro Hattori, Yusuke Tarumoto, Minoru Tanaka, Michiko Hayano, Jun Ichi Sakagami, Shin Irei Sugar Tech 21:843-846. 論文リンク
Comparison Study of Allelochemicals and Bispyribac-Sodium on the Germination and Growth Response of Echinochloa crus-galli L. Sheikh Muhammad Masum, Mohammad Amzad Hossain, Hikaru Akamine, Jun Ichi Sakagami, Takahiro Ishii, Toshihiro Konno, Ichiro Nakamura Journal of Plant Growth Regulation 38:501-512. 論文リンク
2018
Adaptability to varying water levels and responsiveness to NPK fertilizer in yellow velvetleaf plant (Limnocharis flava) Benyamin Lakitan, Hibiki Iwanaga, Kartika Kartika, Haris Kriswantoro, Jun Ichi Sakagami Australian Journal of Crop Science 12 1757-1764. 論文リンク
Development of Hydropriming Techniques for Sowing Seeds of Upland Rice in Uganda. Yoshihiro Nakao, Godfrey Asea, Minoru Yoshino, Nobuki Kojima, Hiroyuki Hanada, Kisho Miyamoto, Shin Yabuta, Rieko Kamioka, Jun-Ichi Sakagami American Journal of Plant Sciences 9:2170-2182. 論文リンク
High-resolution mapping and characterization of xa42, a resistance gene against multiple Xanthomonas oryzae pv. oryzae races in rice (Oryza sativa L.). Busungu C, Taura S, Sakagami JI, Anai T, Ichitani K Breeding science 68:188-199. 論文リンク
Isolation and characterization of allelopathic compounds from the indigenous rice variety ‘boterswar’ and their biological activity against Echinochloa crus-galli L S. M. Masum, M. A. Hossain, H. Akamine, J. I. Sakagami, T. Ishii, S. Gima, T. Kensaku, P. C. Bhowmik Allelopathy Journal 43:31-42. 論文リンク
2017
The effect of sulfur fertilization on rice yields and nitrogen use efficiency in a floodplain ecosystem of northern Ghana Yasuhiro Tsujimoto, Baba Inusah, Keisuke Katsura, Abraham Fuseini, Wilson Dogbe, Alhassan I. Zakaria, Yoichi Fujihara, Masato Oda, Jun-Ichi Sakagami FIELD CROPS RESEARCH 211:155-164. 論文リンク
Physiological Mechanism of Chlorophyll Breakdown for Leaves under Complete Submergence in Rice Chiharu Sone, Jun-Ichi Sakagami CROP SCIENCE 57:2729 – 2738. 論文リンク
Rice Root Distribution of Four Rice Varieties to Different Depth of Submergence Nurrahma Arinal H. I, Junaedi Ahmad, Purnamawati Heni, Sakagami Jun-Ichi AGRIVITA 39:119 – 127. 論文リンク
Evaluating the Potential of Underdeveloped Land for Rice Production in Sub-Saharan Africa – A Case Study of Floodplains in the Northern Region of Ghana, West Africa Keiichi Hayashi, Yasuhiro Tsujimoto, Tamao Hatta, Yukiyo Yamamoto, Jun-Ichi Sakagami, Mathias Fosu JARQ-JAPAN AGRICULTURAL RESEARCH QUARTERLY 51:77-84 論文リンク
2016
Allelopathic potential of indigenous Bangladeshi rice varieties Sheikh M. Masum, Mohammad Amzad Hossain, Hikaru Akamine, Jun-Ichi Sakagami, Prasanta C. Bhowmik WEED BIOLOGY AND MANAGEMENT 16(3) 119-131. 論文リンク
Identification and linkage analysis of a new rice bacterial blight resistance gene from XM14, a mutant line from IR24 Constantine Busungu, Satoru Taura, Jun-Ichi Sakagami, Katsuyuki Ichitani BREEDING SCIENCE 66:636- 645. 論文リンク
Genotype-by-environment interaction analysis of rice (Oryza spp.) yield in a floodplain ecosystem in West Africa Keisuke Katsura, Yasuhiro Tsujimoto, Masato Oda, Ken-ichi Matsushima, Baba Inusah, Wilson Dogbe, Jun-Ichi Sakagami EUROPEAN JOURNAL OF AGRONOMY 73:152-159. 論文リンク
2015
Seed Germination and Coleoptile Growth of New Rice Lines Adapted to Hypoxic Conditions Yusuke Adachi, Mei Sugiyama, Jun-Ichi Sakagami, Akari Fukuda, Masamichi Ohe, Hajime Watanabe PLANT PRODUCTION SCIENCE 18:471-475. 論文リンク
Traits Associated with the Escape Strategy are Responsible for Flash Flooding Tolerance of Rice during the Emergence and Seedling Stages S. El-Hendawy, C. Sone, O. Ito, J-I. Sakagami CEREAL RESEARCH COMMUNICATIONS 43:525-536. 論文リンク
Swamp rice cultivation in South Sumatra, Indonesia: an overview，Irmawati1, H. Ehara, R. A. Suwignyo and J. Sakagami Tropical Agriculture and Development 59: 35-39. 論文リンク
Adaptive traits associated with tolerance to flash flooding during emergence and early seedling growth stages in rice Salah El-Hendawy, Nasser Al-Suhaibani, Urs Schmidhalter, Jun Ichi Sakagami Plant OMICS 7:474-489. 論文リンク
2013
Ex-ante adoption of rice cultivation practices in Flood plains along Volta River in Northern Ghana，Oladele O.Idowu, Jun-Ichi Sakagami Archives Des Sciences 66:256-264.
Effects of seed hydropriming on germination and seedling vigor during emergence of rice under different soil moisture conditions，Ken-ichi Matsushima, Jun-Ichi Sakagami American Journal of Plant Sciences 4:1584-1593. 論文リンク
Complete submergence escape with shoot elongation ability by underwater photosynthesis in African rice, Oryza glaberrima Steud.Jun-Ichi Sakagami, Yukiko Joho, Chiharu Sone Field Crops Research, 152: 17-26. 論文リンク
Topographic distribution of the soil total carbon content and sulfur deficiency for rice cultivation in a floodplain ecosystem of the Northern region of Ghana Tsujimoto Yasuhiro, Yamamoto Yukiyo, Hayashi Keiichi, Zakaria Alhassan I, Inusah Yahaya, Hatta Tamao, Fosu Mathias, Sakagami Jun-Ichi Field Crops Research, 152:74-82. 論文リンク
Role of Canopy Coverage in Water Use Efficiency of Lowland Rice in Early Growth Period in Semi-Arid Region Tetsuji Suzuki, Takeshi Ohta, Yasuhiro Izumi, Luke Kanyomeka, Osmund Mwandemele, Jun-Ichi Sakagami, Koji Yamane, Morio Iijima PLANT PRODUCTION SCIENCE 16:12-23. 論文リンク
Differential growth response of rice genotypes based on quiescence mechanism under flash flooding stress Salah El-Hendawy, Chiharu Sone, Osamu Ito, Jun Ichi Sakagami Australian Journal of Crop Science 6:1587 – 1597. 論文リンク
Assessing the probability of land submergence for lowland rice cultivation in Africa using satellite imagery and geospatial data Yukiyo Yamamoto, Yasuhiro Tsujimoto, Yoichi Fujihara, Jun ichi Sakagami, Shiro Ochi, Mathias Fosu Environment, Development and Sustainability 14:955 – 971. 論文リンク
Characterizing Submergence Survival Strategy in Rice Via Chlorophyll Fluorescence C. Sone, O. Ito, J. -I. Sakagami JOURNAL OF AGRONOMY AND CROP SCIENCE 198:152-160. 論文リンク
Evaluation of germination ability in rice seeds under anaerobic conditions by cluster analysis S. E. El-Hendawy, C. Sone, O. Ito, J. I. Sakagami Research Journal of Seed Science 4:82-93. 論文リンク
Submergence escape in Oryza glaberrima Steud. in Africa，Sakagami J-I., Sone C., Kawano N. Proceedings of 7th Asian Crop Science Association Conference: 24-28. 論文リンク
Screening Egyptian Wheat Genotypes for Salt Tolerance at Early Growth Stages S. E. El-Hendawy, Y. Hu, J. I. Sakagami, U. Schmidhalter INTERNATIONAL JOURNAL OF PLANT PRODUCTION 5:283-298. 論文リンク
Differential Salinity Tolerance among Oryza glaberrima, Oryza sativa and Their Interspecies Including NERICA Simon Kamwele Awala, Pamwenafye Inatutila Nanhapo, Jun-Ichi Sakagami, Luke Kanyomeka, Morio Iijima PLANT PRODUCTION SCIENCE 13:3-10. 論文リンク
Does treating faba bean seeds with chemical inducers simultaneously increase chocolate spot disease resistance and yield under field conditions? Salah El-Hendawy, Waleed Shaban, Jun-Ichi Sakagami TURKISH JOURNAL OF AGRICULTURE AND FORESTRY 34:475-485. 論文リンク
Contrasting physiological responses by cultivars of Oryza sativa and O. glaberrima to prolonged submergence. Sakagami J-I., Joho Y., Ito O. Annals of botany 103:171-180. 論文リンク
Morphological and physiological responses of rice seedlings to complete submergence (flash flooding) Naoyoshi Kawano, Osamu Ito, Jun-Ichi Sakagami ANNALS OF BOTANY 103:161-169. 論文リンク
2008
Relationship between shoot elongation and dry matter weight during submergence in Oryza sativa L. and O. glaberrima Steud. rice cultivars Naoyoshi Kawano, Osamu Ito, Jun-Ichi Sakagami PLANT PRODUCTION SCIENCE 11(3) 316 – 323. 論文リンク
Growth Responses of Seedlings in Oryza glaberrima Steud. to Short-term Submergence in Guinea, West Africa Yukiko Joho, Kenji Omasa, Naoyoshi Kawano, Jun-Ichi Sakagami JARQ-JAPAN AGRICULTURAL RESEARCH QUARTERLY 42:157-162. 論文リンク
Collaborative exploration of African rice (Oryza glaberrima Steud.) in Senegal and Guinea in 2006 (海外探索収集及び共同調査報告) 坂上潤一, 城宝由紀子, Cisse Amara 植物遺伝資源探索導入調査報告書 23:109-123. 論文リンク
Research-extension-farmer linkage system in Southwestern Nigeria Oladimeji Idowu, Oladele, Jun Ichi Sakagami, Kazunobu Toriyama Journal of Food, Agriculture and Environment 4:197-200. 論文リンク
Physiological responses of shoot-related traits on water stress of cultivated species of Oryza sativa L., O. glaberrima Steud. and NERICA，J-I Sakagami, Cisse, A, Ito O., Kawano N. Beyond the first generation NERICA in Africa, WARDA:121-131.
Agronomic features of Oryza glaberrima under flooding conditions，Y. Joho, K. Omasa, J-I. Sakagami Beyond the first generation NERICA in Africa, WARDA:73-78.
Physiological strategy of young rice seedlings for flash floods.，N. Kawano, O. Ito, J-I. Sakagami Beyond the first generation NERICA in Africa, WARDA:79-85.
2005
The effect of different timing of top dressing of nitrogen application under low light intensity on the yield of rice (Oryza sativa l.) KBDP Samarajeewa, N Kojima, J Sakagami, WA Chandanie JOURNAL OF AGRONOMY AND CROP SCIENCE 191:99-105. 論文リンク
Economic policies and the performance of agricultural extension services in Nigeria 1986 – 2002，Oladele O I., Sakagami J., Koyama O. Journal of Extension Systems 20: 89-95.
Agricultural research and extension indices as determinants of agricultural growth in Nigeria:1981-2002，Oladele, O., J. Sakagami Journal of Agriculture and Environment for International Development 98 : 19 -27. 論文リンク
New Rice for Africa，Tobita S., Sakagami J-I. Farming Japan 38: 35-40.
SWOT analysis of extension systems in Asian and West African，Oladele, O., J. Sakagami Journal of Food, Agriculture & Environment,2:232 -236.
Africa in search of extension system: Experience from Nigeria Oladimeji Idowu Oladele, Osamu Koyoma, Jun-Ichi Sakagami JOURNAL OF FOOD AGRICULTURE & ENVIRONMENT 2:276-280.
