Inventory study of sago resources in Asia and the Pacific

2019 Fiscal Year Annual Research Report

• Project/Area Number: 15H05245
• Research Institution: Nagoya University
• Principal Investigator: 江原 宏 名古屋大学, アジア共創教育研究機構(農国), 教授 (10232969)
• Co-Investigator(Kenkyū-buntansha): 豊田 由貴夫 立教大学, 名誉教授, 名誉教授 (20197974) ; 内藤 整 倉敷芸術科学大学, 生命科学部, 教授 (40252902) ; 三島 隆 三重大学, 生物資源学研究科, 准教授 (40314140) ; 板谷 明美 三重大学, 生物資源学研究科, 准教授 (70447861) ; 内山 智裕 東京農業大学, 国際食料情報学部, 教授 (80378322)
• Project Period (FY): 2015-04-01 – 2020-03-31
• Keywords: サゴ属 / Metroxylon / サゴヤシ / Coelococcus / フィジーゾウゲヤシ / 農業形質 / 生育適地

Outline of Annual Research Achievements

Metroxylon節のサゴヤシ（M. sagu）について，ニューギニア島とその周辺地域（メラネシアのパプアニューギニア，ソロモン諸島，ならびにインドネシア ・西パプア州）に分布する変種群の農業形質を，マレー諸島（インドネシア ・西スマトラ州，南スマトラ州，東南スラウェシ州，北マルク州）の変種群と比較検討した。その結果，ニューギニア島と周辺のものでは，幹長が長くて幹直径は細く，幹の葉痕数が多い傾向にあり，従来の報告にある出葉速度が遅いとの情報を考え合わせると，幹立ちから収穫的期までの期間が長いことが窺われた。そして，そのような特徴が生じた理由として，マレー諸島に比べてニューギニア地域では収穫圧が低いことと関わるのではないかと理解された。
Coelococcus節のフィジーゾウゲヤシ（M. vitiense）について，MaxEntを用いてフィジー固有の絶滅危惧種である本種の生育に適した場所の予測を行った。その結果、フィジーゾウゲヤシの生育適地が沿岸地域と，そこから比較的距離のある地域の両方で認められることが示された。また，将来の生育適地は，現在の分布面積の409.7％および240.9％に拡大する可能性のあることが窺われた。近年，フィジーゾウゲヤシの生息地である沿岸地域は急速な開発の影響を受けており，海面上昇の影響も受けると予想される。従って，本種へのリスクを減らすためには，沿岸地域から距離のある潜在的適地に移植する取り組みが，保全戦略として重要であるものと考えられた。

Research Progress Status

令和元年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和元年度が最終年度であるため、記入しない。

Research Products

• [Int'l Joint Research] Bureau of Tourism(パプアニューギニア)
  • Country Name: PAPUA NEW GUINEA
  • Counterpart Institution: Bureau of Tourism
• [Int'l Joint Research] Department of Forest/Honiara Botanical Gardens(ソロモン)
  • Country Name: SOLOMON ISLANDS
  • Counterpart Institution: Department of Forest/Honiara Botanical Gardens
• [Int'l Joint Research] The University of South Pacific/Nature FIji(フィジー)
  • Country Name: FIJI
  • Counterpart Institution: The University of South Pacific/Nature FIji
• [Int'l Joint Research] Ministry of Natural Res. & Environ.(サモア)
  • Country Name: INDEPENDENT STATE OF SAMOA
  • Counterpart Institution: Ministry of Natural Res. & Environ.
• [Int'l Joint Research] James Cook University(オーストラリア)
  • Country Name: AUSTRALIA
  • Counterpart Institution: James Cook University
• [Int'l Joint Research]
  • # of Other Countries: 2
• [Journal Article] Modeling future habitats to identify suitable sites for ex situ conservation of the endangered palm Metroxylon vitiense (H. Wendl.) H. Wendl. ex Benth. & Hook. f. in Fiji (2022)
  • Author(s): Itaya Akemi、Miyamori Masamitsu、Ehara Hiroshi、Naito Hitoshi、Rounds Isaac、Naikatini Alivereti、Tuiwawa Marika
  • Journal Title: Tropical Ecology Volume: - Pages: -
  • DOI: 10.1007/s42965-022-00233-1
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Waterlogged Conditions Influence the Nitrogen, Phosphorus, Potassium, and Sugar Distribution in Sago Palm (Metroxylon sagu Rottb.) at Seedling Stages (2022)
  • Author(s): Azhar Aidil、Asano Koki、Sugiura Daisuke、Kano-Nakata Mana、Ehara Hiroshi
  • Journal Title: Plants Volume: 11 Pages: 710～710
  • DOI: 10.3390/plants11050710
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Arbuscular Mycorrhizal Communities in the Roots of Sago Palm in Mineral and Shallow Peat Soils (2021)
  • Author(s): Asano Koki、Kagong Willy Vincent Anak、Mohammad Siraj Munir Bin、Sakazaki Kurumi、Talip Muhamad Syukrie Abu、Sahmat Siti Sahmsiah、Chan Margaret Kit Yok、Isoi Toshiyuki、Kano-Nakata Mana、Ehara Hiroshi
  • Journal Title: Agriculture Volume: 11 Pages: 1161～1161
  • DOI: 10.3390/agriculture11111161
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The impact of different soil water levels on nitrogen, phosphorus, and potassium uptake, photosynthetic performance, and sugar distribution of sago palm seedlings (2021)
  • Author(s): Azhar Aidil、Audia Fitri、Asano Koki、Makihara Daigo、Naito Hitoshi、Sugiura Daisuke、Ehara Hiroshi
  • Journal Title: Agrosystems, Geosciences & Environment Volume: 4 Pages: -
  • DOI: 10.1002/agg2.20191
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Commercialization of sago starch in Indonesia: Production, consumption and international trading (2021)
  • Author(s): Trisia Marlisa Ayu、Ehara Hiroshi
  • Journal Title: Sago Palm Volume: 29 Pages: 39 - 47
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] The Role of the Sago Supply Chain for Rural Development in Indonesia: A Review and Perspective (2021)
  • Author(s): Ayu Trisia Marlisa、Tachikawa Masashi、Ehara Hiroshi
  • Journal Title: Reviews in Agricultural Science Volume: 9 Pages: 143～156
  • DOI: 10.7831/ras.9.0_143
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] From producers to consumers: An analysis of distribution channels and added value of sago products in East Java, Indonesia (2020)
  • Author(s): Trisia, M. A. and Ehara, H.
  • Journal Title: Sago Palm Volume: 28 Pages: 49～55
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Factors Determining Sago Starch Import Demand: Empirical Evidence from Japan (2020)
  • Author(s): Trisia Marlisa Ayu、Takeshita Hironobu、Kikuta Mayumi、Ehara Hiroshi
  • Journal Title: Journal of International Logistics and Trade Volume: 18 Pages: 159～167
  • DOI: 10.24006/jilt.2020.18.4.159
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Sago palm (Metroxylon sagu Rottb.) response to drought condition in terms of leaf gas exchange and chlorophyll a fluorescence (2020)
  • Author(s): Azhar Aidil、Makihara Daigo、Naito Hitoshi、Asano Koki、Takagi Mai、Unoki Saeka、Tomita Rena、Abbas Barahima、Ehara Hiroshi
  • Journal Title: Plant Production Science Volume: 24 Pages: 65～72
  • DOI: 10.1080/1343943X.2020.1794914
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Evaluating sago palm (Metroxylon sagu Rottb.) photosynthetic performance in waterlogged conditions: utilizing pulse-amplitude-modulated (PAM) fluorometry as a waterlogging stress indicator (2020)
  • Author(s): Azhar A.、Makihara D.、Naito H.、Ehara H.
  • Journal Title: Journal of the Saudi Society of Agricultural Sciences Volume: 19 Pages: 37～42
  • DOI: 10.1016/j.jssas.2018.05.004
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Colonization of Roots in Sago Palm Seedlings Associated with Commercial Mycorrhizal Inocula (2019)
  • Author(s): Asano, K., Isoi, Y., Murano, H., Azhar, A., Pasolon, Y. B. and Ehara, H.
  • Journal Title: Sago Palm Volume: 27 Pages: 9～14
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Phylogenetic study of Metroxylon palms in Southeast Asia and Oceania based on 5S nrDNA spacer sequence data (2019)
  • Author(s): Ehara, H., Yamamoto, T., Tsuchiya, T., Naito, H., Dowe, J. L., McClatchey, W. C., Mishima, T., Itaya, A., Mizota, C., Pasolon, Y. B., Ala, P., Tuiwawa, M., Naikatini, A., Rounds, I. A., Foliga, T., Lui, S. and Kwan, S.
  • Journal Title: Sago Palm Volume: 26 Pages: 37～43
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Presentation] Feasibility study for copper application to sago palm leaf (2021)
  • Author(s): Fitri Audia, Hitoshi Naito, Akira Watanabe, Takao Oi, Mana Kano-Nakata, and Hiroshi Ehara
  • Organizer: The 30th Annual Meeting of The Society of Sago Palm Studies
• [Presentation] Growth responses of Manno sago seed on organic fertilizer application (2021)
  • Author(s): Y. B. Pasolon, Y. Junidin, Namriah, M. S. Padang and H. Ehara
  • Organizer: The 30th Annual Meeting of The Society of Sago Palm Studies
• [Presentation] Growth Responses of Manno Sago Seed to Organic and NPK Fertilizers Application (2021)
  • Author(s): Yulius Barra Pasolon, Marselinus Sulu, Asniwati Asniwati, Muhidin Muhidin, Hitoshi Naito, Hiroshi Ehara
  • Organizer: 10th Asian Crop Science Association Conference
  • Int'l Joint Research
• [Presentation] The Abundance and Diversity of Arbuscular Mycorrhizal Fungi Colonized in Roots of Sago Palm in Mineral Soil and Shallow Peat Soil (2021)
  • Author(s): Koki Asano, Willy Vincent Anak Kagong, Siraj Munir Bin Mohammad, Kurumi Sakazaki, Margaret Chan Kit Yok, Toshiyuki Isoi, Mana Kano-Nakata, Hiroshi Ehara
  • Organizer: 10th Asian Crop Science Association Conference
  • Int'l Joint Research
• [Presentation] Foliar Uptake of Copper-base Fertilzer by Sago Palm Leaves (2021)
  • Author(s): Fitri Audia, Hitoshi Naito, Akira Watanabe, Takao Oi, Mana Kano-Nakata, Hiroshi Ehara
  • Organizer: The 251th Meeting of Japanese Society of Crop Science
• [Presentation] Sago Palm for Starch Production and Sustainable Land Development in Peatlands (2021)
  • Author(s): Aidil Azhar, Koki Asano, Fitri Audia, Hitoshi Naito, Daisuke Sugiura, Mana Kano-Nakata, Daigo Makihara, Hiroshi Ehara
  • Organizer: The 251th Meeting of Japanese Society of Crop Science
• [Presentation] Sago Palm Performance in Problem Soils (2020)
  • Author(s): Hiroshi Ehara
  • Organizer: CoE PLACE UNSRI “Increasing Degraded Peatland Productivity through Agrosilvofishery and Paludiculture”
  • Int'l Joint Research / Invited
• [Presentation] Innovation and Downstream Agricultural Research in Japan (2020)
  • Author(s): Hiroshi Ehara
  • Organizer: PIU UGM “Agri-entrepreneurship Based on Innovation and Downstream Research”
  • Int'l Joint Research / Invited
• [Presentation] Comparison of nutrient status between sago palms grown in peat and mineral soil in Indonesia (2020)
  • Author(s): Fitri Audia, Aidil Azhar, Muhammad Iqbal Nurulhaq, Agief Julio Pratama, Ahmad Junaedi, Ibnu Natsir, Akira Watanabe, Hitoshi Naito and Hiroshi Ehara
  • Organizer: The 29th Annual Meeting of The Society of Sago Palm Studies
• [Presentation] Arbuscular Mycorrhizal Fungi colonized in the root of sago palm grown in mineral and shallow peat soil (2020)
  • Author(s): Koki Asano, Willy Vincent Anak Kagong, Siraj Munir Bin Mohammad, Kurumi Sakazaki, Margaret Chan Kit Yok, Toshiyuki Isoi and Hiroshi Ehara
  • Organizer: The 29th Annual Meeting of The Society of Sago Palm Studies
• [Presentation] An overview of market opportunities for sago starch commercialization in Indonesia (2020)
  • Author(s): Marlisa Ayu Trisia and Hiroshi Ehara
  • Organizer: The 29th Annual Meeting of The Society of Sago Palm Studies
• [Presentation] サゴヤシ実生の肥料反応特性 (2020)
  • Author(s): 浅野航輝, Aidil Azhar, 仲田(狩野)麻奈, 槇原大悟, 内藤 整, 江原 宏
  • Organizer: 日本熱帯農業学会第 127 回講演会
• [Presentation] Germination of sago palm seeds treated with different preparation methods (2019)
  • Author(s): Takagi, M., Naito, H., Pasolon, Y. B. and Ehara, H.
  • Organizer: The 28th Annual Meeting of The Society of Sago Palm Studies
• [Presentation] Comparison of seedling growth of sago palm under different fertilizer application (2019)
  • Author(s): Asano. K., Azhar, A., Takagi, M., Audia, F., Murano, H., Isoi, T., Naito, H., Makihara, D. amd Ehara, H.
  • Organizer: The 28th Annual Meeting of The Society of Sago Palm Studies
• [Presentation] Metroxylon palms in Guadalcanal, Solomon Islands (2019)
  • Author(s): Naito, H., Toyoda, Y., Mishima, T., Miyazaki, T., Sirikolo, M., Moueni, K., and Ehara, H.
  • Organizer: The 28th Annual Meeting of The Society of Sago Palm Studies
• [Presentation] Impact of high soil water levels on sago palm's nutrient uoptake and photosynthesis (2019)
  • Author(s): Azhar, A., Asano, K., Takagi, M., Audia, F., Makihara, D., Natio, H. Ehara, H.
  • Organizer: The 28th Annual Meeting of The Society of Sago Palm Studies
• [Presentation] From producers to soncumers: Distribution and utiliation of sago starch in Surabaya, Ease Java, Indonesia (2019)
  • Author(s): Trisia, M. A. and Ehara, H.
  • Organizer: The 28th Annual Meeting of The Society of Sago Palm Studies
• [Presentation] サゴヤシの播種前処理による種子発芽率変化 (2019)
  • Author(s): 高木麻衣・内藤整・Y.B. Pasolon・Marlisa Ayu Trisia・仲田(狩野)麻奈・江原宏
  • Organizer: 日本作物学会東海支部第150回講演会
• [Presentation] Sustainable production and utilization of sago palm resource (2019)
  • Author(s): Ehara, H., Naito, H., Toyota, K., Asano, K., Mishima, T., Isono, N., Ohmi, M., Nitta, Y. and Toyoda, Y.
  • Organizer: The 1st International Conference on Sustainable Plantation
  • Int'l Joint Research / Invited
• [Presentation] Colonization of Roots in Sago Palm Seedlings (2019)
  • Author(s): Asano, H., Chan, M. K. Y., Isoi, T., Murano, H., Azhar, A., Pasolon, Y. B. and Ehara, H.
  • Organizer: International Society for Southeast Asian Agricultural Sciences (ISSAAS) 2009
  • Int'l Joint Research
• [Presentation] Utilization of sago palm resource for sustainable agriculture and food security (2019)
  • Author(s): Ehara, H., Naito, H., Pasolon, Y. B., Toyota, K., Asano, K., Mishima, T., Isono, N., Ohmi, M., Nitta, Y. and Toyoda, Y.
  • Organizer: International Society for Southeast Asian Agricultural Sciences (ISSAAS) 2009（国際学会）
  • Int'l Joint Research
• [Presentation] グローバル人材育成支援に向けた情報発信 (2019)
  • Author(s): 江原 宏
  • Organizer: 第247回日本作物学会講演会
• [Book] 「サゴヤシ，食用カンナ，クズウコン」. 志和地弘信・遠城道雄 編『熱帯作物学』 (2022)
  • Author(s): 江原宏
  • Total Pages: 206
  • Publisher: 朝倉書店
  • ISBN: 978-4-254-41042-6
• [Book] Ekofisiologi Sagu (2021)
  • Author(s): Bintoro, H. M. H., Ehara, H., Azhar, A., Dewi, R. K., Nurulhaq, M. I., Ahyuni, D.
  • Total Pages: 167
  • Publisher: IPB Press
  • ISBN: 978-623-256-832-7
• [Book] Sago palm in peatland. In: Osaki, M., Tsuji, N., Foead, N. and Rieley, J. eds., Tropical Peatland Eco-management (2021)
  • Author(s): Ehara, H., Kakuda, K., Miyazaki, A., Nakamura, S., Naito, H., Nitta, Y., Okazaki, M., Sasaki, Y., Toyoda, K., Watanabe, A., Watanabe, M., Yamamoto, Y., Kimura, S. D. and Goto, Y.
  • Total Pages: 817
  • Publisher: Springer
  • ISBN: 978-981-33-4654-3
• [Book] 熱帯農学概論 (2019)
  • Author(s): 江原宏, 樋口浩和
  • Total Pages: 296
  • Publisher: 培風館
  • ISBN: 978-4-563-07826-3