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ID 908
Eprint ID
908
フルテキストURL
タイトル(別表記)
イネの根における塩排除効率のイオン種による差異
著者
土屋 幹夫 岡山大学
内藤 整 岡山大学
高木 由美 岡山大学
熊野 誠一 岡山大学
抄録
We investigated the exclusion rate of some ion species in order to discover the features of salt exclusion in rice roots. TSCF of each cation was negatively correlated with the transpiration rate as in the case of Na+. These results indicated that ion exclusion rates change with the transpiration rate. At the same transpiration rate, TSCF of IR28 was lower than that of KR1, which indicated that exclusion efficiency was essentially higher in IR28. The differences in TSCF of K+, Ca2+ and Mg2+ between both varieties were relatively small compared with those of Na+ and Li+. These results indicated that the difference in exclusion rate between varieties was affected by ion species. TSCF at the same transpiration rate seemed to be larger with the decrease in radius of hydrated ion. From these results, it was suggested that the exclusion system of Na+ in rice under saline conditions also works for K+, Li+, Ca2+ and Mg2+, and is driven by transpiration. It was also noted that exclusion may be affected by the radius of hydrated ion.
キーワード
Rice Roots
Salt Exclusion Rate
発行日
1993
出版物タイトル
岡山大学農学部学術報告
出版物タイトル(別表記)
Scientific Reports of the Faculty of Agriculture Okayama University
82巻
1号
出版者
岡山大学農学部
出版者(別表記)
Faculty of Agriculture, Okayama University
開始ページ
17
終了ページ
23
ISSN
0474-0254
NCID
AN00033029
資料タイプ
紀要論文
言語
English
論文のバージョン
publisher
査読
無し
Eprints Journal Name
srfa