Establishment of an efficient flowering induction system in a plant factory for a year-round wasabi seed production

• Project/Area Number: 24580367
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Agricultural environmental engineering
• Research Institution: Shinshu University
• Principal Investigator: NOZUE Masayuki 信州大学, 学術研究院繊維学系, 教授 (30135165)
• Co-Investigator(Kenkyū-buntansha): KUBO Hiroyoshi 信州大学, 学術研究院理学系, 教授 (60205127)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000); Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2012: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: 植物工場 / ワサビ / 花成誘導 / LED / 種子 / FT / CO / 花成 / Wasabia japonica / 採種 / FLC

Outline of Final Research Achievements

Effects of growth stage, day length and light quality on flower-bud formation in wasabi (Wasabia japonica) were examined to establish an efficient flowering induction system in a plant factory for a year-round stable seed production. We showed that flower-bud formation occurs effectively in wasabi plant cultivated more than 4 months after planting by low-temperature treatment at 4-8°C for one month and over 14 hours in the light period using LED white light (RGB). Light quality (blue, far-red and red light) has little influence on flower-bud formation, and FT, one of the essential flowering genes constitutively expressed in both light and dark periods under the above conditions.

Research Products

• [Journal Article] A Year-round prodution system for wasabi nursery plants in a plant factory (2014)
  • Author(s): Nozue, H., Okamoto, C., Matsuda, Y., Motoki, M., Kanemitsu, N., Nozue, M.
  • Journal Title: Proceedings of the International Conference on Plant Factory 2014 Volume: 1 Pages: 1-6
• [Journal Article] 植物工場における省エネルギー栽培とワサビ苗生産 (2014)
  • Author(s): 野末雅之、野末はつみ
  • Journal Title: SEN'I GAKKAISHI (繊維と工業） Volume: 70 Pages: 81-85
  • NAID: 130004746689
• [Journal Article] 植物工場における省エネルギー栽培とワサビ苗生産 (2014)
  • Author(s): 野末雅之・野末はつみ
  • Journal Title: 繊維学会誌 Volume: 70 Pages: 80-85
  • NAID: 130004746689
• [Journal Article] Cloning of floweirng genes (WJFLC) and WJFT) in wasabi (Japanese horseradish) and monitoring of flowering response with their expression (2013)
  • Author(s): Nozue, M., Kubo, H. and Yoshida, K.
  • Journal Title: 1International Journal of Bioscience and Biothecnology Volume: 1 Pages: 67-71
  • Peer Reviewed
• [Journal Article] 植物工場技術の研究・開発および実証・展示・教育拠点 (9) 信州大学 (2013)
  • Author(s): 野末雅之・野末はつみ・宇佐美久尚・高橋伸英・田口悟朗・梶浦善太
  • Journal Title: 植物環境工学 Volume: 25 Pages: 57-61
  • NAID: 10031177349
  • Peer Reviewed
• [Journal Article] 植物工場の新展開と課題 (2013)
  • Author(s): 野末雅之
  • Journal Title: オレオサイエンス Volume: 13 Pages: 1-7
  • NAID: 130005122110
• [Presentation] ワサビ（Wasabia japonica）花成誘導に対する日長および光質の影響 (2014)
  • Author(s): 中俣孝一・大木島晃・野末雅之・野末はつみ・久保浩義
  • Organizer: 第55回日本植物生理学会年会
  • Place of Presentation: 富山大学五福キャンパス、富山市
• [Presentation] ワサビ育苗過程における遠赤色光応答性と光合成特性の変化 (2013)
  • Author(s): 野末雅之・野末はつみ・平井裕貴・中俣孝一・佐藤翔・岡本千晶
  • Organizer: 日本生物環境工学会2013年高松大会
  • Place of Presentation: 香川大学幸町キャンパス、高松市
• [Presentation] 人工環境下におけるワサビ（Wasabia japonica)における花成誘導制御遺伝子の発現と花成誘導 (2013)
  • Author(s): 中俣孝一・野末雅之・久保浩義・吉田澄司・野末はつみ
  • Organizer: 第５４回日本植物生理学会年会
  • Place of Presentation: 岡山市
• [Presentation] Cloning of flowering genes (WjFLC and WjFT) in wasabi (Japanese horseradish) and monitoring of flowering response with their expression (2012)
  • Author(s): Nozue, M., Kubo, H. and Yoshida, K.
  • Organizer: 4th Internationa Conference on Bioscience and Biotechnology
  • Place of Presentation: Indonesia, Bali
  • Invited