Journal article
Does elevated [CO2] only increase root growth in the topsoil? A face study with lentil in a semi-arid environment
M Bourgault, S Tausz-Posch, M Greenwood, M Löw, S Henty, RD Armstrong, GL O’leary, GJ Fitzgerald, M Tausz
Plants | Published : 2021
Abstract
Atmospheric carbon dioxide concentrations [CO2] are increasing steadily. Some reports have shown that root growth in grain crops is mostly stimulated in the topsoil rather than evenly throughout the soil profile by e[CO2], which is not optimal for crops grown in semi-arid environments with strong reliance on stored water. An experiment was conducted during the 2014 and 2015 growing seasons with two lentil (Lens culinaris) genotypes grown under Free Air CO2 Enrichment (FACE) in which root growth was observed non-destructively with mini-rhizotrons approximately every 2–3 weeks. Root growth was not always statistically increased by e[CO2] and not consistently between depths and genotypes. In 20..
View full abstractGrants
Awarded by National Institutes of Health
Funding Acknowledgements
The AGFACE program was jointly run by The University of Melbourne and Agriculture Victoria (Victorian Department of Economic Development, Jobs, Transport and Resources), and received additional funding from the Australian Commonwealth Department of Agriculture and Water Resources (grant number FtRG 1193982-41) and the Grains Research and Development Corporation (grant numbers DAV00121 and DAV00137). Statistical Consulting and Research Services at Montana State University is supported by Institutional Development Awards (IDeA) from the National Institute of General Medical Sciences of the National Institutes of Health under Awards P20GM103474 and 2U54GM104944, and the content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.