Effect of stripe rust on the yield response of wheat to nitrogen

Devadas, R; Simpfendorfer, S; Backhouse, D; Lamb, DW

Effect of stripe rust on the yield response of wheat to nitrogen

Devadas, R

Simpfendorfer, S Backhouse, D Lamb, DW

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Publisher:: Elsevier
Publication Type:: Journal Article
Citation:: The Crop Journal, 2014, 2 (4), pp. 201 - 206
Issue Date:: 2014-01

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Field	Value	Language
dc.contributor.author	Devadas, R https://orcid.org/0000-0002-2085-6442	en_US
dc.contributor.author	Simpfendorfer, S	en_US
dc.contributor.author	Backhouse, D	en_US
dc.contributor.author	Lamb, DW	en_US
dc.date.issued	2014-01	en_US
dc.identifier.citation	The Crop Journal, 2014, 2 (4), pp. 201 - 206	en_US
dc.identifier.issn	2214-5141	en_US
dc.identifier.uri	http://hdl.handle.net/10453/36129
dc.description.abstract	Nitrogen (N) is the most important fertiliser element determining the productivity of wheat. N nutrition is known to affect the level of stripe rust infection, with higher N associated with increased disease severity. Stripe rust, caused by Puccinia striiformis f. sp. tritici, is a major yield-limiting disease of wheat in Australia. This paper describes experiments designed to investigate the agronomic response to the interaction of various levels of N application and stripe rust severity in wheat varieties differing in response. Experimental plots were established in crop seasons 2006 and 2007 on the Liverpool Plains of northern NSW, Australia. Yield, biomass, grain protein content (GPC) and harvest index (HI) data were recorded. Increased rates of N increased the severity of stripe rust during grain filling. N application also increased yield and GPC in all varieties in both years. Stripe rust reduced the yield of the rust-susceptible wheat varieties, and GPC and proportion of added N recovered in the grain were also reduced in one year but not the other. It was evident from our experiment that stripe rust caused yield loss accompanied by either no change or reduction in GPC, indicating that the total amount of N entering the grain was reduced by stripe rust. The effects of stripe rust on N yield are most likely associated with reduced uptake of N during grain filling.	en_US
dc.publisher	Elsevier	en_US
dc.relation.ispartof	The Crop Journal	en_US
dc.relation.isbasedon	10.1016/j.cj.2014.05.002	en_US
dc.rights	Elsevier required licence: © 2014 . This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/. The definitive publisher version is available online at https://doi.org/10.1016/j.cj.2014.05.002	en_US
dc.title	Effect of stripe rust on the yield response of wheat to nitrogen	en_US
dc.type	Journal Article
utslib.citation.volume	4	en_US
utslib.citation.volume	2	en_US
utslib.for	060702 Plant Cell and Molecular Biology	en_US
utslib.for	0703 Crop and Pasture Production	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
utslib.copyright.status	open_access
pubs.consider-herdc	false	en_US
pubs.issue	4	en_US
pubs.volume	2	en_US

Abstract:

Nitrogen (N) is the most important fertiliser element determining the productivity of wheat. N nutrition is known to affect the level of stripe rust infection, with higher N associated with increased disease severity. Stripe rust, caused by Puccinia striiformis f. sp. tritici, is a major yield-limiting disease of wheat in Australia. This paper describes experiments designed to investigate the agronomic response to the interaction of various levels of N application and stripe rust severity in wheat varieties differing in response. Experimental plots were established in crop seasons 2006 and 2007 on the Liverpool Plains of northern NSW, Australia. Yield, biomass, grain protein content (GPC) and harvest index (HI) data were recorded. Increased rates of N increased the severity of stripe rust during grain filling. N application also increased yield and GPC in all varieties in both years. Stripe rust reduced the yield of the rust-susceptible wheat varieties, and GPC and proportion of added N recovered in the grain were also reduced in one year but not the other. It was evident from our experiment that stripe rust caused yield loss accompanied by either no change or reduction in GPC, indicating that the total amount of N entering the grain was reduced by stripe rust. The effects of stripe rust on N yield are most likely associated with reduced uptake of N during grain filling.

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http://hdl.handle.net/10453/36129