Identification of traits underpinning good breadmaking performance of wheat grown with reduced nitrogen fertilisation
Publication details
Journal : Journal of the Science of Food and Agriculture , vol. 103 , p. 7664–7672–8 , 2023
International Standard Numbers
:
Printed
:
0022-5142
Electronic
:
1097-0010
Publication type : Academic article
Issue : 15
Links
:
ARKIV
:
hdl.handle.net/11250/3085245
DOI
:
doi.org/10.1002/jsfa.12848
Research areas
Quality and measurement methods
Raw material knowledge
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Kjetil Aune
Chief Librarian
kjetil.aune@nofima.no
Summary
Background: Nitrogen fertiliser is the major input and cost for wheat production, being required to support the development of the canopy to maximise yield and for the synthesis of the gluten proteins that are necessary for breadmaking. Consequently, current high-yielding cultivars require the use of nitrogen fertilisation levels above the yield optimum to achieve the grain protein content needed for breadmaking. This study aimed to reduce this requirement by identifying traits that allow the use of lower levels of nitrogen fertiliser to produce wheat for breadmaking. Results: A range of commercial wheat genotypes (cultivars) were grown in multiple field trials (six sites over 3 years) in the UK with optimal (200 kg Ha-1) and suboptimal (150 kg Ha-1) application of nitrogen. Bulked grain samples from four sites per year were milled and white flours were baked using three types of breadmaking process. This identified five cultivars that consistently exhibited good breadmaking quality when grown with the lower nitrogen application. Chemical and biochemical analyses showed that the five cultivars were characterised by exhibiting grain protein deviation (GPD) and high dough elasticity. Conclusions: It is possible to develop novel types of wheat that exhibit good breadmaking quality by selecting for GPD and high dough strength.