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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

Kovsies proud of a gold PRISM Award for safety campaign

2015-05-05

Stefan Lotter, Leonie Bolleurs and Lacea Loader. All three are from the Departement of Communication and Brand Management at the UFS.
Photo: Hannes Pieterse

The University of the Free State, takes pride in the gold PRISM Award (from the Public Relations Institute of Southern Africa) for the B Safe Take Action safety campaign that has been rolled out on the campus since 2013 by the Department of Communication and Brand Management.

The campaign earned the Von H Brand Provocateur gold award in the internal communication category.

“The UFS is the only tertiary institution to receive a gold award. The award is a great honour for the department, considering the cream of South African public relations took part in the competition, and the standard was naturally very high. It was also a feather in the cap for us that the uniqueness of the campaign received national recognition from our peers in this manner, said Ms Lacea Loader, Director: Communication and Brand Management at the UFS.

The university is responsible for about 32 000 students and 4 000 members of staff on its three campuses: the Bloemfontein and South Campuses in Bloemfontein and the Qwaqwa Campus in the Eastern Free State. It is of cardinal importance for the university that its students, staff, and assets are safe.

Apart from safety measures that have been implemented by the UFS Protection Services, the B Safe Take Action campaign has also been rolled out on the three campuses of the UFS. The campaign supports the safety strategy of the university. It is aimed at developing a culture of safety awareness in students and staff alike. The purpose of the campaign is for staff and students to take ownership of their own safety. In addition, it creates awareness of the safety measures that are in place at the UFS.

The campaign has been rolled out on various communication platforms. These include placards, pamphlets, lamp-post advertisements, an advertisement board, emails, and messages on student communication portals such as Blackboard, the UFS web and intranet, social media, information boards in the campus parking areas and on the pedestrian walkways as well as messages on refuse bins around the campus. “The fact that a variety of communication platforms has been deployed, the striking design and character of the messages, and the number of target audiences that have been reached further contributed to the success of the campaign,” said Ms Loader,

The campaign also received a merit award from the International Association for Business Communication (IABC). The award will be presented on 15 June 2015 in San Francisco, USA.

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