Crop quality under rising atmospheric CO.

Johan Uddling, Malin C Broberg, Zhaozhong Feng, Håkan Pleijel

Journal: Current opinion in plant biology 2019;45(Pt B):262-267

PMID: 29958824

Full Text on Elsevier Science View on PubMed

Abstract

Crops grown under elevated CO (eCO) typically exhibit enhanced yields but at the same time decreased nutritional quality. The latter effect has often been explained as a growth dilution phenomenon, but this cannot be the only process involved since crop nutrient concentrations are decreased also when production is unaffected by eCO. We review the current knowledge on eCO effects on crop nutritional quality with focus on the current understanding of the possible mechanisms and processes causing these effects. Emphasis is on crop nitrogen (N) and protein concentrations but effects on other nutrients and how they compare with those on N are also covered.

Address: University of Gothenburg, Department of Biological and Environmental Sciences, P.O. Box 461, 40530 Gothenburg, Sweden. Electronic address: [email protected].; University of Gothenburg, Department of Biological and Environmental Sciences, P.O. Box 461, 40530 Gothenburg, Sweden.; Chinese Academy of Sciences, State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, College of Resources and Environment, Beijing 100049, China.

DOI: 10.1016/j.pbi.2018.06.001

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MeSH Terms: Carbon Dioxide, Crops, Agricultural, Nitrogen, Phosphorus