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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

Always good to be honoured at home, says Justice Richard Goldstone

2012-02-06

Justice Richard Goldstone received an honorary doctorate from the university on 3 February 2012.
Photo: Duard Grobbelaar

Dumela article (pdf document)
Justice Richard Goldstone's - acceptance speech (pdf document)
Mail & Guardian article (pdf document)

The University of the Free State (UFS) is determined to make a success of its academic and human projects, and is not prepared to compromise on standards in the process.

This was the message of Prof. Jonathan Jansen, Vice-Chancellor and Rector, at our universities official opening on Friday 3 February 2012. These projects, said Prof. Jansen, are the foundation of the institution.

The official opening coincided with an honorary doctorate in Law conferred on Justice Richard Goldstone.

The UFS has enrolled the “smartest and most diverse class since 1904,” Prof. Jansen said.
Top learners with six A’s, and more learners from top schools inside and outside South Africa, have made the UFS their university of choice. “We are determined that the best students must study at Kovsies.”

Prof. Jansen also referred to learners in the school system who sit and wait while teachers fight amongst themselves at the education departments. “What are we going to do with those students?” The UFS provides an opportunity for these students to enter higher education with its University Preparation Programme on its South Campus in Bloemfontein. “The fastest growth at our university is on this campus. It is set aside for children who cannot be taken up in the mainstream.”

Some of the students who were part of this programme are doctors, lawyers and teachers today.

“We set a high standard in our academic project to make sure our students are the best available.”

In its Schools Project, the UFS has 23 schools under its wing and the net is broadening. Pass rates in these schools improved dramatically; in some from 13% to 100% in one year.

The human project sets standards for good behaviour. “I was astounded to see how young people get together to find other people as human beings,” Jansen said. “I have enormous hope for this country.

Some of the other projects he mentioned were the provision of more space for students to study, a refocus on the Qwaqwa Campus in the Eastern Free State, the placement of new academics, and agreements with universities abroad on the placement of young scholars.

After receiving his honorary doctorate, Justice Goldstone congratulated the university on the fact that transformation did not lead to standards being compromised.

“The university now takes its place as a leading university on our continent. The leaders of the university can hold their heads up high about their achievements.”

Judge Goldstone, the bearer of 26 honorary doctorates from various countries around the world, said: “It is always good to be honored at home”.

The official opening was attended by staff, students, guests and community leaders.

Media Release
3 February 2012
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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