Is a reduced-tillering trait (tin) beneficial under elevated CO2 in four FACE environments?
Paper
Paper/Presentation Title | Is a reduced-tillering trait (tin) beneficial under elevated CO2 in four FACE environments? |
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Presentation Type | Paper |
Authors | Low, Markus (Author), Tausz-Posch, S. (Author), Rebetzke, G. (Author), Dreccer, M. F. (Author), Chapman, S. C. (Author), Seneweera, S. (Author), Fitzgerald, G. (Author) and Tausz, M. (Author) |
Editors | Acuña, Tina , Moeller, C., Parsons , D. and Harrison, M. |
Journal or Proceedings Title | Proceedings of the 17th Australian Agronomy Conference (AAC 2015) |
ERA Conference ID | 50281 |
Year | 2015 |
Place of Publication | Warragul, Australia |
Conference/Event | 17th Australian Agronomy Conference 2015: Building Productive, Diverse and Sustainable Landscapes (AAC 2015) |
Australian Agronomy Conference | |
Event Details | 17th Australian Agronomy Conference 2015: Building Productive, Diverse and Sustainable Landscapes (AAC 2015) Parent Building Productive, Diverse and Sustainable Landscapes Event Date 20 to end of 24 Sep 2015 Event Location Hobart, Australia |
Event Details | Australian Agronomy Conference AAC |
Abstract | The number of heads per m2 is an important yield component in wheat, and high yielding wheat types often produce many tillers and heads. Elevated CO2 (eCO2) generally promotes growth and yield of wheat, and this ‘CO2 fertilisation effect’ is commonly linked to increased production of biomass and tillers, and less to other yield components. In water limited environments where crops mature under increasingly dry conditions, high biomass productivity early in the season may lead to an early depletion of soil water reserves, and inabilityof the crop to fill grains. A restricted tillering trait, through a ‘tiller inhibition gene’ (‘tin’), has therefore been suggested in pre-breeding research and proven to be beneficial in such environments. In this study, we address the potential trade-offs between the response of yield to eCO2 and the restricted tillering trait. Two near-isogenic wheat lines, the freely tillering cultivar cv. Silverstar and a Silverstar line containing the |
Keywords | wheat; Free-Air Carbon dioxide Enrichment (FACE); tillering trait (tin); multi-environment experiment; dryland |
ANZSRC Field of Research 2020 | 410102. Ecological impacts of climate change and ecological adaptation |
Public Notes | Copyright © 2015 Australian Society of Agronomy Inc. |
Byline Affiliations | University of Melbourne |
Commonwealth Scientific and Industrial Research Organisation (CSIRO), Australia | |
Centre for Crop Health | |
Department of Economic Development, Jobs, Transport and Resources, Victoria | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q344q/is-a-reduced-tillering-trait-tin-beneficial-under-elevated-co2-in-four-face-environments
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