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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 in forefront with ASGI-SA initiative

2006-05-10

At the conceptualisation colloquium and stakeholder dialogue were from the left Dr Aldo Stroebel (senior researcher at the UFS Research Development Directorate), Dr Edith Vries (acting Chief Executive Officer of the Independent Development Trust) and Prof Frans Swanepoel (Director: UFS Research Development Directorate).

UFS in forefront with ASGI-SA initiative

Two staff members of the University of the Free State (UFS) have been appointed as members of the advisory board of the national programme for the creation of small enterprises and jobs in the second economy. This programme forms part of government’s Accelerated and Shared Growth Initiative of South Africa (ASGI-SA).

Prof Frans Swanepoel, Director of the UFS Research Development Directorate and Dr Aldo Stroebel, senior researcher at the UFS Research Development Directorate, are working with a team of experts from the UFS on a draft implementation strategy for the national programme. Both Prof Swanepoel and Dr Stroebel are also associated to the UFS Centre for Sustainable Agriculture.

“The strategy is being developed in collaboration with institutions like the Independent Development Trust, the Department of Agriculture, the National Development Agency and the Department of Trade and Industry,” says Prof Swanepoel.

The other team members of the UFS are Prof Basie Wessels, Director of the Mangaung-University Community Partnership Programme (MUCPP) and Mr Benedict Mokoena, project manager at the MUCPP.

Dr Stroebel was also member of the organising committee of a conceptualisation colloquium and stakeholder dialogue that was recently presented in Johannesburg. The conference was attended by more than 400 delegates from government departments, higher-education institutions and civil society, including Dr Kobus Laubscher, member of the UFS Council.

The conference was facilitated by Ms Vuyo Mahlati, previously from the WK Kellogg Foundation’s Africa programme and opened by Ms Thoko Didiza, Minister of Agriculture and Land Affairs.

“The colloquium formed the basis of an induction workshop during which a group of 150 individuals (50 teams of three) from all nine provinces, identified to initiate the implementation of the national programme, was trained and orientated towards an induction manual in collaboration with Hand-in-Hand, an Indian counterpart,” says Prof Swanepoel.

Dr Stroebel and Mr Benedict Mokoena formed part of the team to conceptualise and finalise this training manual. The induction training includes a case study of a successful community self-help partnership model, namely the MUCPP at the UFS. Prof Wessels and Mr Mokoena are both playing a leading role in the further development of subsequent training initiatives throughout South Africa, in partnership with the relevant provincial departments.

“The involvement of the UFS in the programme is a compliment to us. It reflects the value government sees in the use of academics and experts in the management of the ASGI-SA initiative. It is also an indication of one of the aims of the UFS to play a role in South Africa and Africa and in the transformation and change that is taking place in our country,” says Prof Swanepoel.

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

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