Intra-specific variation of wheat grain quality in response to elevated [CO2] at two sowing times under rain-fed and irrigation treatments
Article
Article Title | Intra-specific variation of wheat grain quality in response to elevated [CO2] at two sowing times under rain-fed and irrigation treatments |
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ERA Journal ID | 3507 |
Article Category | Article |
Authors | Fernando, Nimesha (Author), Panozzo, Joe (Author), Tausz, Michael (Author), Norton, Robert M. (Author), Fitzgerald, Glenn J. (Author), Myers, Samuel (Author), Nicolas, Marc E. (Author) and Seneweera, Saman (Author) |
Journal Title | Journal of Cereal Science |
Journal Citation | 59 (2), pp. 137-144 |
Number of Pages | 8 |
Year | 2014 |
Place of Publication | London, United Kingdom |
ISSN | 0733-5210 |
1095-9963 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.jcs.2013.12.002 |
Abstract | In order to investigate the intra-specific variation of wheat grain quality response to elevated atmospheric CO2 concentration (e[CO2]), eight wheat (Triticum aestivum L.)cultivars were grown at two CO2 concentrations ([CO2]) (current atmospheric, 389 CO2 μmolmol-1 vs. e[CO2], FACE (Free-Air CO2 Enrichment), 550±10% CO2 μmolmol-1), at two water levels (rain-fed vs. irrigated) and at two times of sowing (TOS1, vs. TOS2). The TOS treatment was mainly imposed to understand whether e[CO2] could modify the effects of timing of higher grain filling temperatures on grain quality. When plants were grown at TOS1, TKW (thousand kernel weight), grain test weight, hardness index, P, Ca, Na and phytate were not significantly changed under e[CO2]. On the other hand, e[CO2] increased TKW (16%), hardness index (9%), kernel diameter (6%), test weight (2%) but decreased grain protein (10%) and grain phytate (11%) at TOS2. In regard to grain Zn, Mn and Cu concentrations and some flour rheological properties, cultivar specific responses to e[CO2] were observed at both sowing times. Observed genetic variability in response to e[CO2] in terms of grain minerals and flour rheological properties could be easily incorporated into future wheat breeding programs to enable adaptation to climate change. |
Keywords | elevated CO2; wheat; grain quality;climate change; micro nutrients; phytate |
ANZSRC Field of Research 2020 | 310806. Plant physiology |
300201. Agricultural hydrology | |
300403. Agronomy | |
410102. Ecological impacts of climate change and ecological adaptation | |
Public Notes | © 2013 Elsevier Ltd. Published version deposited in accordance with the copyright policy of the publisher. |
Byline Affiliations | University of Melbourne |
Department of Environment and Primary Industries, Victoria | |
International Plant Nutrition Institute, Australia | |
Harvard University, United States | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q265q/intra-specific-variation-of-wheat-grain-quality-in-response-to-elevated-co2-at-two-sowing-times-under-rain-fed-and-irrigation-treatments
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