Journal article

Responses of wheat and rice grain mineral quality to elevated carbon dioxide and canopy warming

Jianqing Wang, Lianqing Li, Shu Kee Lam, Xiaoyu Liu, Genxing Pan

Field Crops Research | ELSEVIER | Published : 2020

Abstract

The impact of climate change on grain quality is a critical issue for human health. However, how grain chemical element composition responds to climate change stresses has been poorly addressed. An open-air field experiment was conducted to investigate the impacts of factorial combinations of [CO2] (elevated [CO2] (500 ppm) vs ambient [CO2] (410 ppm)) and canopy air warming (+ 2 °C) on grain chemical element concentrations for two consecutive years in a rice-wheat rotation system. Overall, elevated [CO2] decreased the concentrations of most chemical elements by 4.2-20.1% in grain, but remarkably increased grain Mn, Mo, Cr, Ni, Cd and Pb concentrations by 9.2-72.9% for both crops. In contrast..

View full abstract

University of Melbourne Researchers

Grants

Awarded by National Key R&D Program of China


Awarded by National Natural Science Foundation of China


Awarded by state Special Fund for Agro-scientific Research in the Public Interest "Climate Change Impacts on Crop Production and Mitigation"


Funding Acknowledgements

This work was financially supported by National Key R&D Program of China (2017YFD0300202) and by National Natural Science Foundation of China (31901165). Construction of the experiment system was funded by the state Special Fund for Agro-scientific Research in the Public Interest "Climate Change Impacts on Crop Production and Mitigation" under a grant number 200903003. The authors declare no conflict of interest.