Effects of summer nutrient uptake on winter growth in a winter-green perennial Lycoris radiata.

• Project/Area Number: 21570025
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Ecology/Environment
• Research Institution: Nippon Medical School
• Principal Investigator: NISHITANI Satomi 日本医科大学, 医学部, 講師 (50287736)
• Co-Investigator(Renkei-kenkyūsha): KACHI Naoki 首都大学東京, 理工学研究科, 教授 (30124340) ; NAKAMURA Toshie 中央大学, 経済学部, 非常勤講師
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000); Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2010: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000); Fiscal Year 2009: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: 生理生態 / 冬緑性 / フェノロジー / 窒素 / 成長 / 光合成 / 植物 / 窒素吸収

Research Abstract

Lycoris radiata kept ability of taking up nitrogen all year round. Nitrogen uptake in summer facilitated growth in the following growing season. Nitrogen uptake in autumn contributed to higher photosynthetic potential of leaves but had no effect on growth of the season. Nitrogen taken up in winter contributed neither to photosynthesis nor growth, but was stored in the bulb and hence considered to contribute to growth of the next season.

Research Products

• [Presentation] Effects of summer nitrogen uptake on winter growth in a winter-green perennial herb Lycoris radiata (2012)
  • Author(s): Satomi Nishitani, Toshie Nakamura, Naoki Kachi
  • Organizer: 5th East Asian Federation of Ecological Societies(EAFES5)
  • Place of Presentation: 龍谷大学(大津市)
  • Year and Date: 2012-03-20
• [Presentation] Effects of summer nitrogen uptake on winter growth in a winter-green perennial herb Lycoris radiata (2012)
  • Author(s): 西谷里美
  • Organizer: 5th East Asian Federation of Ecological Societies (EAFES5)
  • Place of Presentation: 龍谷大学(大津市)
  • Year and Date: 2012-03-20
• [Presentation] 冬緑性草本ヒガンバナの, 初期成長と葉の生理特性に対する施肥時期の効果 (2011)
  • Author(s): 西谷里美, 中村敏枝, 可知直毅
  • Place of Presentation: 札幌コンベンションセンター(北海道)
  • Year and Date: 2011-03-09
• [Presentation] 冬緑性草本ヒガンバナの,初期成長と葉の生理特性に対する施肥時期の効果 (2011)
  • Author(s): 西谷里美
  • Organizer: 日本生態学会
  • Place of Presentation: 札幌コンベンションセンター(北海道)
  • Year and Date: 2011-03-09
• [Presentation] 冬緑性草本ヒガンバナの光合成特性 (2010)
  • Author(s): 西谷里美, 中村敏枝, 可知直毅
  • Place of Presentation: 東京大学(東京都)
  • Year and Date: 2010-03-16
• [Presentation] 冬緑性草本ヒガンバナの光合成特性 (2010)
  • Author(s): 西谷里美
  • Organizer: 日本生態学会
  • Place of Presentation: 東京大学 (東京都)
  • Year and Date: 2010-03-16