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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 in top four in Global Business Challenge

2015-05-06

Photo: Mark Steenbok (Bloemfontein Courant)

Christiaan Paulsen (team leader), Sias Conradie, Jannie de Wet and Frikkie Jacobs.

Four Kovsies in the Department of Mathematical Statistics and Actuarial Sciences are one of the top four teams in the Chartered Institute of Management Accountants’ (CIMA) Global Business Challenge. 178 teams registered to participate in the competition.

Team Bernoulli from the UFS will compete against two teams: one from the University of Pretoria and one from the Chartered Accountant Training Institute in Sandton. The winning team will win a trip to Poland, Europe to represent their university and country at the 2015 global final.

This international business competition is for undergraduates around the world, designed to bring out the best in the young business leaders of tomorrow.

Team leader, Christiaan Paulsen, said: “We are overjoyed to be in the final. However, our true success is in what we learned along the way”.

The team has to present a business case study, showcasing their talent in business management. During this competition, the team has

learned to analyse and solve a real-life business case study;
-obtained first-hand experience of the skills required to be a business leader;
enhanced their team building skills; and
developed their presentation skills.

Students from Australia, Bangladesh, China, Ghana, Hong Kong SAR, India, Indonesia, Ireland, GCC, Malaysia, Myanmar, Nepal, New Zealand, Nigeria, Pakistan, Phillipines, Poland, Russia, Singapore, South Africa, Sri Lanka, Thailand, Ukraine, United Kingdom, Vietnam, and Zambia are taking part in the competition.

This competition is organised by CIMA in conjunction with Barclays.

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