Effects of open-air elevated atmospheric CO2 concentration on yield quality of soybean (Glycine max (L.) Merr)
Article
Article Title | Effects of open-air elevated atmospheric CO2 concentration on yield quality of soybean (Glycine max (L.) Merr) |
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ERA Journal ID | 36361 |
Article Category | Article |
Authors | Hao, Xingyu (Author), Gao, Ji (Author), Xue, Han (Author), Ma, Zhanyu (Author), Merchant, Andrew (Author), Ju, Hui (Author), Li, Ping (Author), Yang, Wanshen (Author), Gao, Zhiqiang (Author) and Lin, Erda (Author) |
Journal Title | Agriculture, Ecosystems and Environment |
Journal Citation | 192, pp. 80-84 |
Number of Pages | 5 |
Year | 2014 |
Publisher | Elsevier |
Place of Publication | Netherlands |
ISSN | 0167-8809 |
1873-2305 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.agee.2014.04.002 |
Web Address (URL) | http://www.sciencedirect.com/science/article/pii/S0167880914001996 |
Abstract | Investigations across the world have elucidated common chemical and physiological responses of plants to the influence of elevated atmospheric CO2 concentration ([CO2]). Focus is now turning to the influence of elevated [CO2] on yield quality among a number of globally important crops including soybean (Glycine max (L.) Merr). Soybean cv. Zhonghuang 35 was grown in a free-air CO2 enrichment (FACE) field experiment at Changping-Beijing (China) under ambient (415±16 µmol mol−1) and elevated(550±19 µmol mol−1) CO2 concentrations. Results showed that elevated [CO2] increased the yields of soybean seeds (g m−2) by 26% and 31% respectively, in 2009 and 2011. Total protein concentration in seeds was significantly reduced by 3.3% under CO2 enrichment, but oil concentration increased by 2.8%. Accordingly, most proteinogenic amino acid concentrations were significantly reduced under elevated [CO2], whilst two fatty acids (linoleic acid and palmitic acid) increased in concentration. The protein and oil yield per unit ground area increased by 24.5% and 32.0%, respectively. Results indicate that whilst future elevated atmospheric [CO2] may improve the oil quantity of soybean, corresponding reductions in the nutritive value are likely to occur. |
Keywords | free-air carbon dioxide enrichment (FACE); quality protein; amino acids; fatty acids; soybean |
ANZSRC Field of Research 2020 | 419999. Other environmental sciences not elsewhere classified |
309999. Other agricultural, veterinary and food sciences not elsewhere classified | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Shanxi Agricultural University, China |
Chinese Academy of Agricultural Sciences, China | |
Chinese Research Academy of Environmental Sciences, China | |
University of Sydney | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q361v/effects-of-open-air-elevated-atmospheric-co2-concentration-on-yield-quality-of-soybean-glycine-max-l-merr
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