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  1. B300 農学部/生命農学研究科
  2. B300a 雑誌掲載論文
  3. 学術雑誌

Nitrogen and Water Demands for Maximum Growth of Solanum tuberosum under Doubled CO2: Interaction with Phosphorus Based on the Demands

http://hdl.handle.net/2237/00032632
http://hdl.handle.net/2237/00032632
f89a6a4e-529a-45a0-aaef-efa0b7e6d13a
名前 / ファイル ライセンス アクション
EEB20_final.pdf EEB20_final (2.4 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2020-09-15
タイトル
タイトル Nitrogen and Water Demands for Maximum Growth of Solanum tuberosum under Doubled CO2: Interaction with Phosphorus Based on the Demands
言語 en
著者 Yi, Yan

× Yi, Yan

WEKO 101227

en Yi, Yan

Search repository
Sugiura, Daisuke

× Sugiura, Daisuke

WEKO 101228

en Sugiura, Daisuke

Search repository
Yano, Katsuya

× Yano, Katsuya

WEKO 101229

en Yano, Katsuya

Search repository
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
権利
言語 en
権利情報 © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
キーワード
主題Scheme Other
主題 elevated CO2
キーワード
主題Scheme Other
主題 nitrogen
キーワード
主題Scheme Other
主題 phosphorus
キーワード
主題Scheme Other
主題 Solanum tuberosum L.
キーワード
主題Scheme Other
主題 plant growth
キーワード
主題Scheme Other
主題 water–use efficiency
抄録
内容記述 Crop growth promotion utilizing elevated carbon dioxide concentrations (e[CO2]) may be limited by soil nutrient availability. Although numerous studies have suggested the importance of nitrogen (N) for the promotion of growth under e[CO2], N requirement for maximum plant growth is rarely examined. We have found that increase in potato (Solanum tuberosum L.) biomass depends on phosphorus (P) availability under doubled [CO2] conditions. To address whether the N requirement for maximum growth under e[CO2] is dependent on P supply or not in potatoes, we quantified potato growth and water consumption in response to five N supply rates at low P (LP) and high P (HP) conditions. A pot experiment was conducted in controlled-environment chambers with ambient CO2 concentrations (a[CO2]) and an e[CO2] level of double a[CO2]. Foliar critical N concentration per area (critical [N]area), the minimum N requirement for 90% maximum plant growth, was similar (1.43 g m-2) regardless of [CO2] conditions under LP. Under HP, however, the critical [N]area increased under e[CO2] conditions (1.65 g m-2) compared with a[CO2] conditions (1.52 g m-2). Water use did not change with e[CO2] under HP conditions, whereas it decreased with e[CO2] under LP conditions despite the increase in biomass owing to higher water-use efficiency (WUE). Although WUE with e[CO2] or HP was independent of N supply, biomass increment with e[CO2] or HP depended on N supply. We concluded that the N and water required by potato plants under e[CO2] would be dependent on P supply. Although under HP, e[CO2] increased N but not water required to obtain maximum growth during the early growth stage, N demand was unchanged and water demand decreased by e[CO2] under LP conditions, probably owing to growth limited by P availability.
言語 en
内容記述タイプ Abstract
内容記述
内容記述 ファイル公開:2022-08-01
言語 ja
内容記述タイプ Other
出版者
言語 en
出版者 Elsevier
言語
言語 eng
資源タイプ
資源タイプresource http://purl.org/coar/resource_type/c_6501
タイプ journal article
出版タイプ
出版タイプ AM
出版タイプResource http://purl.org/coar/version/c_ab4af688f83e57aa
DOI
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 https://doi.org/10.1016/j.envexpbot.2020.104089
ISSN(print)
収録物識別子タイプ PISSN
収録物識別子 0098-8472
書誌情報 en : Environmental and Experimental Botany

巻 176, p. 104089, 発行日 2020-08
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