| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2025-05-13 |
| タイトル |
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タイトル |
Variation in growth enhancement by elevated CO2 in Japanese mustard spinach (Brassica rapa var. perviridis) |
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言語 |
en |
| 言語 |
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言語 |
eng |
| キーワード |
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言語 |
en |
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主題Scheme |
Other |
|
主題 |
Growth analysis |
| キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Net assimilation rate |
| キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Open-top chamber |
| キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Relative growth rate |
| キーワード |
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言語 |
en |
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主題Scheme |
Other |
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主題 |
Sink-source relationship |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
YAMAGUCHI, Masahiro
HASHIGUCHI, Yuna
FUJIKAWA, Akari
MURAYAMA, Sakino
MIYAGUCHI, Kota
KINOSE, Yoshiyuki
YONEKURA, Tetsushi
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
The atmospheric CO2 is projected to increase in the future. The elevated CO2 generally enhances the growth and yield of crops through the acceleration of the net photosynthetic rate. It is well known that, for major crops such as rice and soybean, the elevated CO2‑induced enhancement varies with environmental conditions. However, there is limited information regarding the variation in the enhancement in leafy vegetables. To understand the growth response of leafy vegetables to elevated CO2, in the present study, Japanese mustard spinach (Brassica rapa var. perviridis), a year‑round leafy vegetable cultivated under various environmental conditions, was grown in pots inside open‑top chambers and exposed to ambient CO2 or elevated CO2 (ambient + 200 μmol mol‑1). The experiment was conducted eight times from September 2020 to November 2021. The extent of elevated CO2‑induced stimulation of relative growth rate (RGR) of whole‑plant (RGRW) differed among the experiments. The extents were less pronounced in the experiments with higher net assimilation rate (NAR) in the ambient CO2 treatment, which was due to higher photosynthetic photon flux density. This result suggests that the environmental conditions conducive to higher source strength suppressed the elevated CO2‑induced growth enhancement. In contrast, the ratio of RGR of root and stem to that of leaf (RGRR+S/RGRL), which could roughly reflect sink‑source balance, was significantly and positively correlated with the extent of elevated CO2‑induced stimulation in the RGRW. Although it is unclear which environmental factors were responsible for higher RGRR+S /RGRL, this result suggests that higher sink strength relative to source strength intensified the elevated CO2‑induced growth enhancement. Therefore, it was concluded that sink‑source relationship could be important determinant for the growth enhancement of Japanese mustard spinach by the elevated CO2. |
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言語 |
en |
| 書誌情報 |
en : Journal of Agricultural Meteorology
巻 81,
号 2,
p. 66-72,
発行日 2025-04-10
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| 出版者 |
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出版者 |
Society of Agricultural Meteorology of Japan |
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言語 |
en |
| 出版社別言語 |
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言語 |
ja |
|
値 |
日本農業気象学会 |
| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
0021-8588 |
| DOI |
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関連タイプ |
isIdenticalTo |
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識別子タイプ |
DOI |
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関連識別子 |
10.2480/agrmet.D-24-00025 |
| 権利 |
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権利情報 |
© Author (s) 2025. This is an open access article under the CC BY 4.0 license. |
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言語 |
en |
| 著者版フラグ |
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出版タイプ |
VoR |
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出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 引用 |
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内容記述タイプ |
Other |
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内容記述 |
Journal of Agricultural Meteorology, 81(2), pp.66-72; 2025 |
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言語 |
en |
JAM81_66.pdf (660 KB)
