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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 to get transformation plan for African context

2005-02-04

The University of the Free State is to draft a comprehensive Transformation Plan to give impetus to the process of making the UFS an inclusive, non-racial, non-sexist, multi-cultural and multi-lingual university within the African context.

Delivering a keynote speech at the Official Opening of the UFS today, the Rector and Vice-Chancellor, Prof Frederick Fourie, said the Transformation Plan would include aspects such as employment equity, institutional culture, academic excellence, and other elements.

He added that another aspect to be considered in the academic element of the Transformation Plan was the issue of the African context, of a university for Africa, in Africa, of the African university.

According to Prof Fourie, the best way of understanding the role of the UFS in Africa and for Africa, is for the university to become a truly engaged university that bridges the gap between the institution and the community. He said the UFS had for more than 10 years been at the forefront of transformation in higher education, and had gone through several phases of transformation. However the UFS needed to embark on a new phase of transformation which would be guided by a comprehensive Transformation Plan.

The Transformation Plan would be the result of an inclusive consultation process involving staff, students, alumni and other stakeholders. It would also be based on a review of current policies and practices.
The process would be led by a Transformation Plan Team, co-ordinated by the Vice-Rector: Academic Operations, Prof Teuns Verschoor, and the Vice-Rector: Student Affairs, Dr Ezekiel Moraka.

“Obviously we should also not underestimate the complexities of transformation and of building a new society, given our complex history and the legacies of poverty, underdevelopment, colonialism and apartheid.

“We must consider support for staff involved in these transformation steps, including appropriate staff development, capacity to support transformation processes, as well as flexible and supportive administrative practices,” Prof Fourie said.

He said the UFS management understood the urgency of transformation in the current democratic South Africa and the changing global environment and appealed to staff and students to participate fully in drafting the Transformation Plan for the UFS.

“Transformation at the UFS has been and will continue to be a process with many facets that seek to enhance excellence in all spheres of university life, and is much more than merely ensuring employment equity,” he said.

Prof Fourie said: “We have reached a historic moment in the life of the UFS where innovative thinking and bold steps yet again are necessary because failure is not an option.”

Media release
Issued by: Lacea Loader
Media Representative
Tel: (051) 401-2584
Cell: 083 645 2454
E-mail: loaderl.stg@mail.uovs.ac.za
4 February 2005

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