| Project/Area Number |
24780160
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Forest science
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| Research Institution | Forestry and Forest Products Research Institute |
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Principal Investigator |
OHIRA Mineko 国立研究開発法人森林総合研究所, 林木育種センター, 主任研究員 (40370861)
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| Research Collaborator |
HANAOKA So 国立研究開発法人森林総合研究所, 林木育種センター北海道育種場, 主任研究員
HIRAOKA Yuichiro 国立研究開発法人森林総合研究所, 林木育種センター, 室長
MIURA Masahiro 国立研究開発法人森林総合研究所, 林木育種センター関西育種場, 室長
IKI Taiichi 国立研究開発法人森林総合研究所, 林木育種センター東北育種場, 室長
WATANABE Atsushi 九州大学, 大学院・農学研究院, 准教授
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| Project Period (FY) |
2012-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| Keywords | 根系 / 形質 / 育種 / 樹木根 / 不定根 / さし木 / スギ |
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| Outline of Final Research Achievements |
To obtain insights to improve Cryptomeria japonica root traits, I investigated the root system and their growth traits of the C. japonica cuttings and mature trees. The root traits of cuttings were affected by environmental conditions such as the physical and chemical properties of soil, and leaf area of cuttings. The difference in root traits among clones were large even after removing the influence of environmental conditions. The root traits of cuttings were positively correlated with that of mature trees. Besides, the traits of cuttings common to clones with superior above-ground growth were high amount of fine root and high TR ratio. These findings suggested that to increase fine roots production with less resources enhance above-ground growth, and the traits can be estimated at the stage of rooted cuttings.
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