In:
Scientific Reports, Springer Science and Business Media LLC, Vol. 11, No. 1 ( 2021-08-13)
Abstract:
The present study investigated the interactive effects of three environmental stress factors elevated CO 2 , temperature, and drought stress on soybean growth and yield. Experiments were conducted in the sunlit, controlled environment Soil–Plant–Atmosphere–Research chambers under two-level of irrigation (WW-well water and WS-water stress-35%WW) and CO 2 (aCO 2- ambient 400 µmol mol −1 and eCO 2 -elevated 800 µmol mol −1 ) and each at the three day/night temperature regimes of 24/18 °C (MLT-moderately low), 28/22 °C (OT-optimum), and 32/26 °C (MHT-moderately high). Results showed the greatest negative impact of WS on plant traits such as canopy photosynthesis ( P Cnet ), total dry weight (TDwt), and seed yield. The decreases in these traits under WS ranged between 40 and 70% averaged across temperature regimes with a greater detrimental impact in plants grown under aCO 2 than eCO 2 . The MHT had an increased P Cnet , TDwt, and seed yield primarily under eCO 2, with a greater increase under WW than WS conditions. The eCO 2 stimulated P Cnet , TDwt, and seed yield more under WS than WW. For instance, on average across T regimes, eCO 2 stimulated around 25% and 90% dry mass under WW and WS, respectively, relative to aCO 2 . Overall, eCO 2 appears to benefit soybean productivity, at least partially, under WS and the moderately warmer temperature of this study.
Type of Medium:
Online Resource
ISSN:
2045-2322
DOI:
10.1038/s41598-021-96037-9
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2021
detail.hit.zdb_id:
2615211-3
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