2024-03-29T06:15:55Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:02001693
2023-01-16T05:06:58Z
643:666:667
Plant growth and water economy of Solanum tuberosum in response to doubled CO2: Interaction between potassium and phosphorus
Yi, Yan
Yano, Katsuya
open access
"This is the peer reviewed version of the following article: [Yi, Y, Yano, K. Plant growth and water economy of Solanum tuberosum in response to doubled CO2: Interaction between potassium and phosphorus. J Agro Crop Sci. 2021; 207: 901– 912. https://doi.org/10.1111/jac.12507], which has been published in final form at [https://doi.org/10.1111/jac.12507]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited."
Potassium (K) and phosphorus (P) are essential macronutrients for potato (Solanum tuberosum L.); they play crucial roles in photoassimilate production that can also be affected by elevated atmospheric CO2 concentration (e[CO2]). However, the interactive effects of K and P nutrition under e[CO2] in potato have not been investigated. A pot experiment was carried out on potato plants in 1-L pots with five K supply rates at two P supply rates in controlled-environment chambers with ambient CO2 concentrations (a[CO2]) and an e[CO2] level of double a[CO2]. There was a significant interaction between K supply and P supply, but not between CO2 and K supply on total plant biomass, water use as well as water-use efficiency (WUE). K supply could remarkably enhance the accumulation of plant biomass under e[CO2] by promoting tuber formation. The maximum total plant biomass increased by approximately 1.3-fold under e[CO2] in this study, while the effect of CO2 was dependent on both P and K supply. Additionally, WUE was increased by e[CO2] and P and K supply. Both CO2 enrichment and K supply increased WUE by stimulating biomass accumulation and reducing water consumption. We concluded that the CO2-fertilization effect and WUE were dependent on both P and K supply. Less biomass accumulation in response to K supply in plants with P deficiency indicates that a balanced nutrient status is crucial for crop production under e[CO2].
Wiley
2022-10-01
2021-10
eng
journal article
AM
http://hdl.handle.net/2237/0002001693
https://nagoya.repo.nii.ac.jp/records/2001693
https://doi.org/10.1111/jac.12507
1439-037X
Journal of Agronomy and Crop Science
207
5
901
912
https://nagoya.repo.nii.ac.jp/record/2001693/files/0421_Final.pdf
application/pdf
1.6 MB
2022-10-01