Journal article

Effect of heat wave on N-2 fixation and N remobilisation of lentil (Lens culinaris MEDIK) grown under free air CO2 enrichment in a mediterranean-type environment

S Paryin, S Uddin, M Bourgault, A Delahunty, J Nuttall, J Brand, G O'Leary, GJ Fitzgerald, R Armstrong, M Tausz

Plant Biology | Wiley | Published : 2020


The stimulatory effect of elevated [CO2] (e[CO2]) on crop production in future climates is likely to be cancelled out by predicted increases in average temperatures. This effect may become stronger through more frequent and severe heat waves, which are predicted to increase in most climate change scenarios. Whilst the growth and yield response of some legumes grown under the interactive effect of e[CO2] and heat waves has been studied, little is known about how N2 fixation and overall N metabolism is affected by this combination. To address these knowledge gaps, two lentil genotypes were grown under ambient [CO2] (a[CO2], ~400 µmol·mol−1) and e[CO2] (~550 µmol·mol−1) in the Australian Grains..

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Funding Acknowledgements

The AGFACE facility was jointly run by the University of Melbourne and Agriculture Victoria and received funding support from the Australian Commonwealth Department of Agriculture and Water Resources, the Grain Research and Development Corporation (GRDC), and the Australian Research Council (ARC). We gratefully acknowledge the contribution of all AGFACE team. SP received a Melbourne International Research Scholarship and Postgraduate Writing-Up Grant supported by the Albert Shimmins Fund.