High yielding wheat in the northern region: impact of nitrogen fertilisation on grain yield and quality in modern cultivars

Ferrante, Ariel, Eyre, Joseph, George-Jaeggli, Barbara, McLean, James, Chenu, Karine, deVoil, Peter, McLean, Greg and Rodriguez, Daniel (2015). High yielding wheat in the northern region: impact of nitrogen fertilisation on grain yield and quality in modern cultivars. In: Building Productive, Diverse and Sustainable Landscapes: Proceedings of the Australian Society of Agronomy Inc.’s 17th Australian Agronomy Conference. Australian Agronomy Conference, Hobart, TAS, Australia, (). 21-24 September 2015.

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Name Description MIMEType Size Downloads
Author Ferrante, Ariel
Eyre, Joseph
George-Jaeggli, Barbara
McLean, James
Chenu, Karine
deVoil, Peter
McLean, Greg
Rodriguez, Daniel
Title of paper High yielding wheat in the northern region: impact of nitrogen fertilisation on grain yield and quality in modern cultivars
Conference name Australian Agronomy Conference
Conference location Hobart, TAS, Australia
Conference dates 21-24 September 2015
Proceedings title Building Productive, Diverse and Sustainable Landscapes: Proceedings of the Australian Society of Agronomy Inc.’s 17th Australian Agronomy Conference
Place of Publication Warragul, VIC, Australia
Publisher Australian Society of Agronomy
Publication Year 2015
Sub-type Fully published paper
Total pages 4
Collection year 2016
Language eng
Abstract/Summary Season to season variability in grain yields is the main factor determining farmers’ conservative investment strategies in dryland cropping. Yield differences among wheat cultivars and its responsiveness to resource availability are usually related to grain number per m2. The experience from Australia suggests that part of the low yields in dryland conditions might be due to low N availability, and that water use efficiency, yield, and grain quality could then be significantly improved by increasing N fertilizers rates. In this study, grain yield and quality were characterised for two recently released cultivars known to contrast for protein content. Crops were grown at Gatton, Queensland, under rainfed and irrigated conditions, and with three N levels. The aim of this study was to determine and quantify differences in yield and grain quality between different modern wheats grown in contrasting N and water conditions. Yield was significantly related to total dry biomass at maturity. Cultivar Suntop achieved higher biomass and yield than Spitfire beyond the treatments imposed, while Spitfire had a significantly greater percentage of grain protein than Suntop.
Keyword Triticum aestivum L
Water
Nitrogen
Protein content
Grain number
Tillering
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ
Additional Notes http://www.agronomy2015.com.au/

 
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Created: Tue, 23 Feb 2016, 16:15:07 EST by Dr Karine Chenu on behalf of Centre for Plant Science