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These results suggest that the effects of pH 2 were consistently higher than those in the controls at weeks 4, 8 and12. these results suggest that the effects of pH 2 solution on the root systems of Japanese red cedar saplings in Yahagi sand appear from an early stage, by the end of the 4th week of treatment, and that white root development is affected both indirectly through above-ground parts, and directly thorough low pH and excess A1 in the media solution. 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Responses of Root Production in Japanese Red Cedar (Cryptomeria japonica D. Don) Saplings to Duration of Treatment with Acidic Solutions
https://doi.org/10.18999/nagufs.16.1
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| Name / File | License | Actions | |
|---|---|---|---|
nagufs_16_1.pdf (1.4 MB)
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| item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2007-07-04 | |||||
| タイトル | ||||||
| タイトル | Responses of Root Production in Japanese Red Cedar (Cryptomeria japonica D. Don) Saplings to Duration of Treatment with Acidic Solutions | |||||
| その他のタイトル | ||||||
| その他のタイトル | 酸性溶液の処理期間がスギ苗の根系生産に与える影響 | |||||
| 著者 |
HIRANO, Yasuhiro
× HIRANO, Yasuhiro× 平野, 泰弘× YOKOTA, Taketo× 横田, 岳人× HIJII, Naoki× 肘井, 直樹 |
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| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | acidic solution | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Cryptomeria japonica | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | surface area index | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | treatment duration | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | white root | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 酸性溶液 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | スギ | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 根表面積 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 処理期間 | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | 白根 | |||||
| 抄録 | ||||||
| 内容記述 | The effects of treatment with acidic solutions for various periods on root system biomass and nutritional status were examined in sand cultures of Japanese red cedar (Cryptomeria japonica D. Don) saplings. A mixture of H_2SO_4 and HNO_3 solution at a molar ratio of 2 : 1 (pH 2.0) was applied for 4 to 12 weeks to both above- and below-ground parts of saplings grown in Yahagi sand. Deionized water was used as the reference treatment (control). At the 4th week, white roots were already injured and the biomass allocation to white were represented as the weight of Ca(NO_3)_2 attached to the root surface per unit dry weight of the roots, differed significantly between the pH 2 and control treatments, although they were not significantly different at weeks 4 and 8. The concentrations of A1 in the white roots at pH 2 were consistently higher than those in the controls at weeks 4, 8 and 12. These results suggest that the effects of pH 2 were consistently higher than those in the controls at weeks 4, 8 and12. these results suggest that the effects of pH 2 solution on the root systems of Japanese red cedar saplings in Yahagi sand appear from an early stage, by the end of the 4th week of treatment, and that white root development is affected both indirectly through above-ground parts, and directly thorough low pH and excess A1 in the media solution. \npH2.0酸性溶液処理におけるスギ苗の根系衰退が、どのくらいの処理機関でどのように起きるかを明らかにするために、2年生スギ苗を矢作砂を培地として砂耕栽培し、4週間ごとの掘り取りによる根系調査を12週間行った。酸性溶液は、苗木の地上部と地下部の双方に暴露した。その結果、4週間の酸性溶液処理において、pH2区における白根の乾重比は、対照区に比べすでに有意に低下しており、白根が太くかつ短くなる傾向が認められた。pH2区における根全体の表面積は、4週間、8週間の酸性溶液処理においては、対照区と有意差が認められなかったものの、12週間の酸性溶液処理においては、対照区に比べて有意に減少した。本実験の結果から、pH2.0酸性溶液処理は、矢作砂の酸中和能力の低さのために根圏における低pHやAlの影響を導き、白根の発育初期段階にさえ負の影響を与えることが明らかとなった。さらに酸性溶液処理期間が長くなるに伴って、その影響は根全体へと及ぶことが示唆された。 |
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| 内容記述タイプ | Abstract | |||||
| 内容記述 | ||||||
| 内容記述 | 農林水産研究情報センターで作成したPDFファイルを使用している。 | |||||
| 内容記述タイプ | Other | |||||
| 出版者 | ||||||
| 出版者 | 名古屋大学農学部附属演習林 | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源 | http://purl.org/coar/resource_type/c_6501 | |||||
| タイプ | departmental bulletin paper | |||||
| ID登録 | ||||||
| ID登録 | 10.18999/nagufs.16.1 | |||||
| ID登録タイプ | JaLC | |||||
| 関連情報 | ||||||
| 関連タイプ | isVersionOf | |||||
| 関連識別子 | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://rms1.agsearch.agropedia.affrc.go.jp/contents/JASI/pdf/academy/57-2254.pdf | |||||
| ISSN（print） | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 13442457 | |||||
| 書誌情報 |
名古屋大学森林科学研究 巻 16, p. 1-6, 発行日 1997-12 |
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| フォーマット | ||||||
| application/pdf | ||||||
| 著者版フラグ | ||||||
| 値 | publisher | |||||
| URI | ||||||
| 識別子 | http://hdl.handle.net/2237/8486 | |||||
| 識別子タイプ | HDL | |||||
