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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 Centenary celebrations come to an end

2005-02-03

OFFICIAL OPENING

The official opening of the UFS will take place on Friday 04 February 2005 at 09:00 in the Reitz Hall (Centenary Complex). Please note that this is a test and lecture free day. The Rector and Vice-Chancellor, Prof. Frederick Fourie will be the keynote speaker. Refreshments will be served at the Centenary Complex after the opening ceremony.

The historic Centenary photograph will be taken at 11:00 on the eastern side of the Red Square (CR Swart parking area). All staff members and students are invited to be part of this massive photograph.

Important

• There will be no parking allowed on the CR Swart parking area until 12:00 on Friday 04 February 2005, as a result of the photo session.

• All academic staff members are requested to wear academic dress on the day, seeing as staff members will depict the Centenary emblem on the photograph. Academic gowns may be collected from the Gown Store on Wednesday 02 - Thursday 03 February 2005 between 08:00 and 16:00. Gowns must be returned to the Gown Store after the photograph has been taken.

SERVICE OF DEVOTION

A special service of devotion will take place on Sunday 06 February 2005 at 18:00 for 18:30 in front of the Main Building on the Red Square. This is a special gathering of students, hosted by all the interdenominational groups on the UFS campus. The evening will be a celebration of praise, thanks and worship, followed by a message from Dr Wollie Grobler. The evening will conclude with song and fireworks.

Staff members and students are welcome to bring their friends and families to this special event.

Important

• Even though there will be chairs in front of the Main Building, staff members and students are requested to bring extra pillows and blankets to sit on.

• No persons or vehicles will be allowed on the eastern side of the Red Square or on the CR Swart parking area, due to the security requirements of the fireworks show.

• All members of the choir are invited to be part of the mass choir. Lyrics will be provided.

• All persons who attend this event are requested to bring a candle for the purpose of the mass choir.

• Special transportation arrangements will be made for all service workers to enable them to attend the service. If there is someone in your faculty, department or division who would like to make use of this service, please send an e-mail to Elize Rall (ralle.stg@mail.uovs.ac.za) no later than Tuesday 01 February 2005.

OTHER ACTIVITIES

• A reunion for all former SRC members of the UFS will take place on the campus, from 04 February to 06 February 2005. An interesting programme is being planned. For more information, please contact Nicolaas du Plessis on 084 955 0875.

• The annual Rag Procession will take place on Saturday 05 February 2005. For more information, contact the Rag Office at X 2718.

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