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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

Intervarsity postponed to 2013

2012-03-08

The annual Intervarsity between the Universities of the Free State and North-West (NWU), which traditionally takes place in the third term, has been postponed to 2013.

The Intervarsity between the UFS and NWU is an illustrious event that has already reached the special milestone of celebrating a 70-year Intervarsity tradition. The UFS/NWU Intervarsity is also known as one of the most reckoned events on the local and national sports and student calendars, and it is widely supported.

Representatives from both universities could for a variety of reasons not decide on a date which suited both universities.

The respective Intervarsity committees and senior managers of both universities have also taken the interests of the respective university communities and alumni of the institutions into account and have decided to postpone the 70^th-year celebration of Intervarsity by a year in order to be able to celebrate the milestone properly.

The UFS would have received the NWU in Bloemfontein this year and will therefore host the 70-year celebrations of the event next year as well.

Mr Rudi Buys, Dean: Student Affairs at the UFS has expressed his gratitude for the fact that both universities are committed to a special celebration of the Intervarsity tradition in 2013.

“The celebration of the 70^th Intervarsity between the two institutions will be an important milestone to commemorate decades of friendship, collaboration and healthy competition. Therefore we welcome this opportunity to plan a bigger and better programme for 2013,” he said.

The UFS-NWU 70-YEAR Intervarsity firstly aims to establish the programme as a proud example for both universities, where students and staff can pit their strengths against one another in a healthy manner.

The aim is to extend Intervarsity to various sections of the respective university communities to enable more students to participate. For instance, more sports codes will be added to the traditional competition on the rugby, soccer, netball and hockey fields, whilst various events focusing on arts and culture, i.e. choral singing and debating competitions, as well as dialogue between student leaders, will take place as part of the programme. All campuses of the two universities will participate in the programmes.

Students are even investigating the possibility of electronic competitions such as on-line games as part of the Intervarsity

During the Intervarsity last year, several new possibilities were already tested to ensure that the 70^th anniversary would be a huge success.

The Central Intervarsity Committee of the UFS has decided to replace the Intervarsity 2012 programme with an INTRA-varsity programme between its respective campuses. For this occasion, various sports, arts and culture, and leadership events between the Bloemfontein and Qwaqwa Campuses are planned, and the Central University of Technology might be invited as well to participate as guests in some programmes.

Media Release
8 March 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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