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Results obtained are briefly summarized in the following; (1) The best growth could be detected when Age I (not yet rooted) seedlings were grown in the medium containing both NH_4 and NO_3 as nitrogen sources. Those grown in the medium containing NO_3 exclusively came next to the above, showing somewhat retarded growth responses. Those growth in the medium with only NH_4 showed, in turn, a certain inhibition in their growth. Quite similar situation was also observed on the growth responses of Age II (rooting) seedlings. (2) In the medium containing urea as nitrogen source Age I seedlings showed definite inhibition in their growth so far as the high concentrations were used, but the growth of Age II seedlings in the same medium was fairly good, in contrast, revealing that there occurred even a more advanced promotion of growth as compared to those grown in the favorable medium containing both NH_4 and NO_3. 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  1. 紀要論文
  2. 琉球大学農学部学術報告
  3. 21号
  1. 部局別インデックス
  2. 農学部

Dendrobium nobile 幼苗の生育に及ぼす培地における窒素形態の影響(農学科)

http://hdl.handle.net/20.500.12000/4364
http://hdl.handle.net/20.500.12000/4364
1e62f6d7-1d8f-46d5-a758-7d9bbf20fe03
名前 / ファイル ライセンス アクション
KJ00000162468.pdf KJ00000162468.pdf
Item type デフォルトアイテムタイプ(フル)(1)
公開日 2008-02-14
タイトル
タイトル Dendrobium nobile 幼苗の生育に及ぼす培地における窒素形態の影響(農学科)
言語 ja
作成者 上里, 健次

× 上里, 健次

ja 上里, 健次

Uesato, Kenji

× Uesato, Kenji

en Uesato, Kenji

アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
内容記述
内容記述タイプ Other
内容記述 Dendrobium nobile (King george×TO-12)の初期幼苗を発根前と発根後の2段階に分け, それぞれに対する窒素養分の形態と濃度の影響を調査した。1.発根前の幼苗の生育に対して最もよい結果はNH_4とNO_3の併用区で得られた。ついでNO_3単独区がよく, NH_4のみの区は生育を阻害した。発根後の幼苗に対してもほぼ同様の傾向が見られた。2.尿素態窒素は, 発根前の幼苗に対しては生育を阻害したが, 発根後の苗に対しては生育を促進し, むしろNH_4,NO_3併用区よりもよい結果が得られた。3.同一培地の中におけるNO_3とNH_4の混合割合についての, 生育に対する最適比率は, それぞれ発根前の苗では8 : 2,発根後の苗では7 : 3であった。
内容記述タイプ Other
内容記述 Studies to make clear the effect of forms and concentrations of nitrogenous nutrients upon the growth of Dendrobium nobile (King George x TO-12) seedlings, at their not yet rooted (Age I) as well as at theirting (Age II) stages, were carried out using aseptic culture techniques. Results obtained are briefly summarized in the following; (1) The best growth could be detected when Age I (not yet rooted) seedlings were grown in the medium containing both NH_4 and NO_3 as nitrogen sources. Those grown in the medium containing NO_3 exclusively came next to the above, showing somewhat retarded growth responses. Those growth in the medium with only NH_4 showed, in turn, a certain inhibition in their growth. Quite similar situation was also observed on the growth responses of Age II (rooting) seedlings. (2) In the medium containing urea as nitrogen source Age I seedlings showed definite inhibition in their growth so far as the high concentrations were used, but the growth of Age II seedlings in the same medium was fairly good, in contrast, revealing that there occurred even a more advanced promotion of growth as compared to those grown in the favorable medium containing both NH_4 and NO_3. (3) The most favorable of Age I seedlings could be obtained in the medium containing both NH_4 and NO_3 nitrogens at the ratio of 20 : 80,and for Age II seedlings the most preferable ratio became, in turn, to be 30 : 70.
内容記述タイプ Other
内容記述 紀要論文
出版者
言語 ja
出版者 琉球大学農学部
言語
言語 jpn
資源タイプ
資源タイプ departmental bulletin paper
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
識別子
識別子 http://hdl.handle.net/20.500.12000/4364
識別子タイプ HDL
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 0370-4246
収録物識別子タイプ NCID
収録物識別子 AN00250548
収録物名
言語 ja
収録物名 琉球大学農学部学術報告
書誌情報
号 21, p. 73-81
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