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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 opens centenary complex

2004-10-12

Today, 12 October 2004, the University of the Free State (UFS) opens the Centenary complex on the grounds of the old Reitz dining hall.

Me Edma Pelzer, Director: Physical Resources and Special Projects at the UFS, said the Centenary complex is furnished mainly for personnel and alumni, just as the Thakaneng Bridge was primarily established as gathering place for students.

On 10 March 2004 the UFS management held the first official function in the half completed complex during the unveiling of the memorial stone by the Rector, Prof Frederick Fourie. What made this occasion remarkable is that old President FW Reitz, 81 years earlier, on 10 March 1923, also laid a memorial stone at the same place, said Ms Pelzer. The complex originally existed of the Reitz dining hall, which was named after old president Reitz, a hostel father residence and administration offices. In historical documents about old president Reitz it is mentioned that already as chief judge he campaigned for the establishment of a university in the Free State and later as president he proceeded with this attempt.

With the opening of the Thakaneng-bridge food preparation and -serving at the Reitz dining hall was discontinued. The kitchen and dining facilities became obsolete. With the evacuation of the old student centre replacements for the Bloemfontein- and Anlgo American-rooms were to be found elsewhere on campus. The idea to convert the historical Reitz building complex in an UFS reception and a space for socialising started to exist.

Ms Pelzer said the UFS is committed to treat its history and its old buildings with respect and to utilise it optimally to enhance the strategic objectives of the university. The Centenary complex must communicate the university as an established, quality institution with an interesting history to visitors. It must serve as a home for alumni and as a one stop visiting point for important visitors who do not have time to experience the whole campus.

In the complex provision is made for entertaining and kitchen facilities, a museum where valuable UFS-memorabilia are kept and exhibited, an amfi theatre and an art gallery which would for the first time offer a permanent home for the art collection of the UFS. Venues will accommodate groups from between 15 to 300 persons.

The reception area will be used by the UFS for occasions such as chancellors’ functions, smaller and bigger receptions for the rector, tea parties after graduation ceremonies, openings of conferences and long service awards. The university also plans to rent out the complex for prestige occasions where the UFS personnel and alumni are involved.

The opening of the Centenary complex form part of the Centenary celebrations of this week. Many of this week’s activities will take place in the complex.

Media release
Issued by: Lacea Loader
Media Representative
Tel: (051) 401-2584
Cell: 083 645 2454
E-mail: loaderl.stg@mail.uovs.ac.za
12 October 2004

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