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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 appoints a Vice-Rector: Operations

2011-03-20

Prof. Nicholas Morgan

The Council of the University of the Free State (UFS) has approved the appointment of Prof. Nicholas Morgan as Vice-Rector: Operations, at its meeting on Friday, 11 March 2011. He has been appointed in the position of Prof. Niel Viljoen, who is retiring on 31 March 2011.

Prof. Morgan formerly served as the Deputy Vice-Chancellor of the Central University of Technology, Deputy Vice-Chancellor of the University of Johannesburg, Interim Vice-Chancellor at Walter Sisulu University and Vice-Chancellor at the University of Transkei.

Prof. Morgan is a former Fulbright Fellow and holds a Master of Science degree from Cornell University in New York, an M.B.A. from Stellenbosch University and a B.Com in accounting and business economics from the University of the Western Cape.

He has held positions at various universities and served as a member of various international professional associations, including the American Industrial Relations Research Association, the Industrial Relations Research Association of South Africa, the South African Institute for Management Sciences and the American Council for Adult and Experiential Learning.

He has been published in numerous publications, and served on the editorial boards of the SA Journal of Business Management between 1993 and 1995 and the Journal of Human Resources Management between 1999 and 2009.

In addition, Prof. Morgan has also developed and presented numerous training programmes and workshops for NGOs, parastatals and unions in the private and public sector.

He has lectured courses in Industrial Relations, Strategic Management, Quantitative Management techniques and Marketing from first-year to postgraduate level at the University of the Western Cape, University of Cape Town and Cornell University.

Prof. Morgan will take up the position on 1 April 2011.

Media Release
18 March 2011
Issued by: Lacea Loader
Director: Strategic Communication
Tel: 051 401 2584
Cell: 083 645 2454
E-mail: news@ufs.ac.za

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