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| Title | : | 水耕栽培下における塩濃度の違いがヒルギダマシ (<I>Avicennia marina</I>)とメヒルギ (<I>Kandelia obovata</I>)稚樹の生育および樹体内のイオン含有量に及ぼす影響 |
| Authors | : | 岩永, 史子
野口, よしの
山本, 福壽
Ailijiang, Maimaiti
岡田, 憲一
山中, 典和
谷口, 真吾 |
| Authors alternative | : | Iwanaga, Fumio
Noguchi, Yoshino
Yamamoto, Fukuju
Ailijang, Maimaiti
Okada, Yoshikazu
Yamanaka, Norikazu
Taniguchi, Shingo |
| Issue Date | : | 2014 |
| Abstract | : | 沖縄に自生するマングローブ樹種のうち塩腺を有するヒルギダマシと，有さないメヒルギの実生苗を0～4％の異なる塩濃度の水耕条件で 1か月育成し，生存率，成長，器官別 Na<SUP>+</SUP> 濃度，葉内ベタイン濃度を測定した。両種ともに，塩処理による生存率と乾燥重量に有意な差が認められなかった。Na<SUP>+</SUP>濃度は 4％処理区のメヒルギの根で有意に高くなり, Na<SUP>+</SUP> : K<SUP>+</SUP>比は胚軸と根で高くなった。一方, ヒルギダマシでは 2－4％処理区の Na<SUP>+</SUP>濃度と Na<SUP>+</SUP> : K<SUP>+</SUP>比が全ての器官で増加した。塩処理濃度の増加に伴って, ヒルギダマシの葉内グリシンベタイン濃度の上昇が認められた。
Growth, survival rate, Na+ and leaf betaine concentration were investigated on <I>Avicennia marina</I> and <I>Kandelia obovata</I> seedlings grown in hydroponic culture with different salinity for 1-month. Survival rate and biomass of both species did not differ with salinity. In <I>K.obovata</I> seedlings, Na<SUP>+</SUP> concentration in root increased significantly by 4% salt treatment, and ratio of Na<SUP>+</SUP> to K<SUP>+</SUP> increased in hypocotyl and root. In <I>A. marina</I> seedlings, Na<SUP>+</SUP> concentration and ratio of Na<SUP>+</SUP> to K<SUP>+</SUP> in every plant part increased significantly by 2-4% salt treatment. Leaf alanin betaine (AB) concentration did not differ with salt treatment, whereas glycine betaine (GB) concentration in <I>K. obovata</I> and <I>A. marina</I> increased with increase in salt treatment. |
| Type Local | : | 雑誌掲載論文 |
| ISSN | : | 0916-7439 |
| Publisher | : | 日本緑化工学会 |
| URI | : | http://hdl.handle.net/20.500.12000/45605 |
| Citation | : | 日本緑化工学会誌 = Journal of the Japanese Society of Revegetation Technology Vol.40 no.1 p.49 -53 |
| Appears in Collections | : | Peer-reviewed Journal Articles (Faculty of Agriculture)
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