Journal article

Increased carbon uptake under elevated CO2 concentration enhances water-use efficiency of C4 broomcorn millet under drought

Dongsheng Zhang, Ali Li, Shu Kee Lam, Ping Li, Yuzheng Zong, Zhiqiang Gao, Xingyu Hao

Agricultural Water Management | ELSEVIER | Published : 2021

Abstract

Broomcorn millet (Panicum miliaceum L.) has been cultivated in arid or semi-arid area due to its high drought tolerance. Yet information on how elevated atmospheric CO2 concentration ([CO2]) affects the responses to drought of the productivity, photosynthesis, water-use efficiency and drought tolerance of broomcorn millet is lacking. We investigated the effects of elevated [CO2] and drought on gas exchange parameters, water-use efficiency, physiological indices related to drought tolerance, leaf area and aboveground biomass of broomcorn millet using an open-top chamber experimental facility in North China in 2015 and 2016. Broomcorn millet was grown in pots with or without drought stress und..

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University of Melbourne Researchers

Grants

Awarded by National Natural Science Foundation of China


Awarded by Shanxi Provincial Key Research and Development Project


Awarded by Shanxi Agricultural Valley's Special Scientific Research Project


Awarded by Scientific Research Foundations for Distinguished Scholars


Funding Acknowledgements

This work was supported by National Natural Science Foundation of China (31871517, 31601212, 31971773), Shanxi Provincial Key Research and Development Project (201703D221033-1), Shanxi Agricultural Valley's Special Scientific Research Project (SXNGJSKYZX201705), The Scientific Research Foundations for Distinguished Scholars (2018YJ12, 2019L0400).