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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 seals cooperation with National Institute for Higher Education

2006-03-20

At the signing of the agreement were seated from the left Prof Magda Fourie (Vice-Rector: Academic Planning at the UFS) and Dr Pearl Nkosi (Head: Academic Planning at the NIHE). Standing from the left were Dr Kopano Taole (acting head of the NIHE) and Mr Vernon Collett (Registrar: Academic Student Services at the UFS).
Photo: Stephen Collett

UFS seals cooperation with National Institute for Higher Education

A formal memorandum of understanding was recently signed between the University of the Free State (UFS) and the National Institute for Higher Education in the Northern Cape (NIHE).

The memorandum was signed to give both institutions a clear understanding of the way in which collaborative programmes should be implemented.

“Although the UFS has been presenting two bachelors degree courses (i.e. B Soc Sc in Human and Societal Dynamics and B Com in General Management) and the Career Preparation Programme at the NIHE since 2003, the cooperative agreement was never formalised,” explained Prof Magda Fourie, Vice-Rector: Academic Planning at the UFS, during the signing ceremony.

These academic programmes, presented by facilitators living in Kimberley and lecturers from the UFS, serve 270 students and the entry requirements of the programmes are determined by the UFS.

Prof Fourie said the UFS had a history of a relationship with the NIHE. The partnership should be seen as an example of how two institutions of higher learning can work together to serve the needs of the students in the region.

“The memorandum of understanding is part of the UFS’s commitment to and engagement with the central region. As the NIHE is currently operating in a policy vacuum, the memorandum is underpinned by certain principles aimed at providing some parameters within which the relationship is established and developed,” she said.

Dr Kopano Taole, acting head of the NIHE, added to this by saying that the understanding of where the NIHE wants to take the partnership is now reflected in the memorandum of understanding.

“The memorandum is the culmination of many years of hard work and of helping the people of the region. The continued input and guidance of the UFS is of tremendous help to us and through this we gained a greater sense of what the NIHE can grow to be,” he said.

The NIHE is a joint initiative of the BHP Billiton Development Trust (BBDT) and the Northern Cape Provincial Government and was established in June 2004. The National Plan for Higher Eduation (NPHE 2001) proposed the establishment of the NIHE in the Northern Cape to serve as the administrative and governance hub for ensuring the coherent provision of higher education through programme collaboration between the higher education institutions operating in the Northern Cape.

Media release
Issued by: Lacea Loader
Media Representative
Tel: (051) 401-2584
Cell: 083 645 2454
E-mail: loaderl.stg@mail.uovs.ac.za
20 March 2006

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