Effects of budburst timing on wood structures in hardwood species

• Project/Area Number: 21580211
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Wood science
• Research Institution: Forestry and Forest Products Research Institute
• Principal Investigator: ORIBE Yuichiro 独立行政法人森林総合研究所, 林木育種センター東北育種場, 室長 (40370853)
• Co-Investigator(Kenkyū-buntansha): KIJIDANI Yoshio 宮崎大学, 農学部, 准教授 (10295199)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2009: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: 組織構造・材形成 / オーキシン / インドール酢酸(IAA) / 林形成 / 管孔 / 森林工学 / 材形成

Research Abstract

In ring-porous hardwood species, we detected dramatic changes in IAA levels in the region of the cambial zone and its derivatives accompanying winter-bud break. Localized temperature controlling on the stem surface succeeded in inverting order between re-initiation of vessel formation in the treated portions and winter-bud break in hardwoods. In a diffuse-porous hardwood species, in which winter-bud broke prior to vessel formation, localized heating induced specific wood structures in xylem formed before the bud break.

Research Products

• [Presentation] 休眠から木部形成再開までの期間における広葉樹の形成層帯に内生するオーキシンの量的変動 (2012)
  • Author(s): 織部雄一朗
  • Organizer: 第62回日本木材学会大会
  • Place of Presentation: 北海道大学(札幌市)
  • Year and Date: 2012-03-15
• [Presentation] スギとクリの早材形成から晩材形成への移行時期 (2011)
  • Author(s): 織部雄一朗
  • Organizer: 東北森林科学会第16回大会
  • Place of Presentation: 青森県総合社会教育センター(青森市)
  • Year and Date: 2011-08-25
• [Presentation] 形成層の休眠期に局部的な加温処理を施したブナの樹幹部における木部形成 (2011)
  • Author(s): 織部雄一朗
  • Organizer: 第61回日本木材学会大会
  • Place of Presentation: 京都大学(京都市)
  • Year and Date: 2011-03-18
• [Presentation] Factors regulating cambial reactivation and re-initiation of xylem differentiation (2010)
  • Author(s): ORIBE YUICHIRO
  • Organizer: World Dendro 2010 The 8th International Conference on Dendrochronology
  • Place of Presentation: University of Lapland(Rovaniemi, Finland)
  • Year and Date: 2010-06-17
• [Presentation] Factors regulating cambial reactivation and re-initiation of xylem differentiation. (2010)
  • Author(s): ORIBE Yuichiro, KIJIDANI Yoshio, BEGUM Shahanara, KUBO Takafumi, FUNADA Ryo
  • Organizer: World Dendro 2010 The 8th International Conference on Dendrochronology
  • Place of Presentation: ラップランド大学(フィンランド)
  • Year and Date: 2010-06-17
• [Presentation] 広葉樹形成層帯での内生IAA量の季節変化と内生IAA定量方法の検討 (2010)
  • Author(s): 織部雄一朗
  • Organizer: 第60回日本木材学会大会
  • Place of Presentation: 宮崎観光ホテル(宮崎市)
  • Year and Date: 2010-03-18