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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

Study Abroad Fair presents exciting opportunities

2013-04-23

Staff and students gain a wealth of information at the first Study Abroad Fair hosted on the Bloemfontein Campus.
Photo: Stephen Collett
23 April 2013

Kovsie staff and students gained a wealth of information at the first Study Abroad Fair hosted by the Office for International Affairs on the Bloemfontein Campus.

Representatives from partner universities across the USA, Europe and Asia took part in the fair, giving information on study opportunities abroad. They were joined by representatives of international funding agencies and foreign missions from countries including Canada, Indonesia, France and the Republic of Azerbaijan, who gave information on funding opportunities to study overseas.

Welcoming visitors, Ms Dineo Gaofhiwe-Ingram, Assistant Director: Internationalisation, said international education forms a very important and critical part of the university’s strategy of aiming and working towards becoming a research intensive university.

“I believe all here understand and know the value of an international education, both as a donor agency, as an embassy that has bilateral agreements with the South African government to support education, and as a staff member that is here with students to encourage them to go abroad. It is important that our staff and students get to learn and experience from others and others from them.”

Dr Choice Makhetha, Vice-Rector: External Relations, encouraged Kovsies “to visit the world and bring the world back to the UFS.”

Prof Jonathan Jansen, Vice-Chancellor and Rector, had a similar message, talking about the advantages of seeing the world. “You never get to be a good leader unless your sense of the world is bigger than yourself. My goal is to make sure that almost every undergraduate student has some experience of studying abroad.“

List of Exhibitors who took part in the Study Abroad Fair:

1. Funding Agencies
Embassy of USA
Embassy of France
Embassy of The Republic of Azerbaijan
European Union
Embassy of Canada
National Research Foundation (NRF)
Embassy of Switzerland
Embassy of Indonesia
Czech Republic Embassy
Research Africa
British Council

2. Partner Universities Abroad
Mahasarakham University (Thailand)
Appalachian State University (USA)
University of Brussels
Radboud University Nijmegen
The Hague University of Applied Sciences
University of Bremen
VU University Amsterdam
University of Groningen
University of Antwerp
University of Leuven
Jönköping University

3. UFS Representation
Postgraduate School (UFS)
Office for International Affairs (UFS)
Faculty of Education (UFS)
Department of Plant Sciences (UFS)
Department of Social Work (UFS)

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