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Revolutionising wheat: Developing cultivars that maintain their quality in heat and drought

28 April 2023 | Story Leonie Bolleurs | Photo Supplied

UFS PhD student and food scientist Schae-Lee Olckers’ research could contribute to a stable supply of good quality wheat and bread, even in the face of climate change.

Follow your passion in order to find your purpose. This is the mantra of food scientist and University of the Free State (UFS) PhD student Schae-Lee Olckers, whose research is set to improve wheat quality by identifying which types of wheat are better able to tolerate stress, and which proteins are most important for producing high-quality bread.

“By grasping this, it is possible to ensure that we continue to have a stable supply of good quality wheat and bread, even in the face of climate change,” says Olckers, who believes wheat is one of the most important food grains in the human diet, and one of the most important staple cereal crops in the world.

Her PhD study, ‘The influence of abiotic stress on gluten protein and baking quality in bread wheat’, under the supervision of Dr Angie van Biljon and Prof Maryke Labuschagne in the Department of Plant Sciences, and Prof Garry Osthoff in the Department of Microbiology and Biochemistry, is investigating how different levels of heat and drought stress – mostly due to climate change – affect the gluten protein composition of high-yield bread wheat.

Olckers is a food scientist at StartWell Foods (Pty) Ltd, a non-profit organisation that produces high-quality extrusion products for feeding schemes around the country. The products help to eliminate stunted growth among children.

Improving wheat breeding programmes

This research could help us find ways to adapt to climate change and continue to produce high-quality wheat and bread for people around the world. – Schae-Lee Olckers

Her research focuses on examining different types of wheat and investigating how proteins are affected by stressors like heat and drought, to understand how these stressors impact the quality of bread. She uses new proteomic methods to look at the different proteins in the wheat flour, to gain a better appreciation of how gluten proteins react to stress.

In this study Olckers is able to see how the proteins change in the various wheat cultivars, helping us to understand how the different types of wheat perform in baking, and how the proteins affect the final product.

She collaborates with the International Maize and Wheat Improvement Center (CIMMYT) in Mexico, that releases new wheat cultivars for developing countries. Their aim is to develop wheat cultivars that maintain their quality in different environments. To investigate the performance and characteristics of the seeds, both in the field and in the laboratory, CIMMYT did the field trials, quality assessment, and supplied the seeds for high-performance liquid chromatography (HPLC) and proteomics analysis.

Finding ways to adapt to climate change

She believes that understanding how these stressors impact the production of bread-baking quality in wheat will help scientists gain important insights into how climate change affects our food supply.

“Taking into consideration the current and projected intensifying heat and water deficit stresses, it is crucial to improve the understanding of these phenomena in order to implement new breeding strategies for sustainable wheat quality. This research could help us find ways to adapt to climate change and continue to produce high-quality wheat and bread for people around the world,” Olckers says.

News Archive

UFS Department of Architecture Building receives SAIA Award

2014-08-21

The South African Institute of Architects (SAIA) conferred a national merit award on renovations and additions to the DHET UFS Department of Architecture Building. The UFS is very proud of this award.

The building, which was completed in 2012, was designed by Typology Architects' director, Henry Pretorius. Pretorius is also the Head of the Department of Architecture at the UFS.

“The merit award by the South African Institute of Architects, which was presented on 1 August 2014 at the International 2014 UIA congress (held for the first time in South Africa), is a great honour. Not only does the award recognise my work as an architect, it also brings back a certain degree of pride to the Free State and especially the UFS’s Department of Architecture,” says Pretorius.

The SAIA Awards Programme runs over two years to coincide with the presidential term of office, starting with the Regional Awards for Architecture during the preceding year.

A total of forty-nine (49) entries for varying buildings were received from the regions. The project range included residential projects, new public buildings, restoration of heritage projects and an academic research project.

From these submissions, fourteen (14) projects received merit awards, of which eight (8) projects received excellence awards.

The adjudication panel comprised:
• Sandile Ngonyama: SAIA President
• Paul Kotze: Architect, planner and academic from WITS
• Malcolm Campbell: Architect from ACG Architects in Cape Town
• Annemarie Meintjies: Deputy editor of VISI magazine, representing a prominent member of the public
• Peter Kidger: representative of Corobrik, sponsor of the awards.

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