Improving crop nitrogen use in dryland farming: interactions and potential trade-offs between water- and nutrient-use efficiency

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dc.contributor.authorGarnett, T.
dc.contributor.authorRebetzke, G.
dc.contributor.editorRengel, Z.
dc.date.issued2013
dc.descriptionPublished Online: 10 JAN 2013
dc.description.abstractImproved nitrogen-use efficiency and water-use efficiency (WUE) of dryland farming crops are important goals for cereal breeders. There have been considerable efforts to improve these traits separately, but now there is an increasing demand for crops with improvement in both of these traits. Analysis of ecological and crop-based experimental data has identified an apparent trade-off between N-use efficiency and WUE, suggesting that the two breeding goals are not compatible. This review summarises the physiology underlying these two traits and the genetic/breeding efforts underway to improve them. It then examines the observed interaction between N-use efficiency and WUE. Understanding the nature of this interaction provides scope to maximise yields in water-limiting environments whilst minimising N losses. Strategies focussing on genetic improvement to improve both traits concurrently are then discussed.
dc.description.statementofresponsibilityTrevor P. Garnett and Greg J. Rebetzke
dc.identifier.citationImproving water and nutrient-use efficiency in food production systems, 2013 / Rengel, Z. (ed./s), Ch.8, pp.123-144
dc.identifier.doi10.1002/9781118517994.ch8
dc.identifier.isbn081381989X
dc.identifier.isbn9780813819891
dc.identifier.orcidGarnett, T. [0000-0003-1664-9659]
dc.identifier.urihttp://hdl.handle.net/2440/87068
dc.language.isoen
dc.publisherJohn Wiley & Sons
dc.rights© 2013 John Wiley & Sons, Inc.
dc.source.urihttps://doi.org/10.1002/9781118517994.ch8
dc.subjectcereal; drought; nitrogen; nitrogen-use efficiency; plant breeding
dc.titleImproving crop nitrogen use in dryland farming: interactions and potential trade-offs between water- and nutrient-use efficiency
dc.typeBook chapter
pubs.publication-statusPublished

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