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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 celebrates Kovsie Week

2009-08-21

The University of the Free State (UFS) will be celebrating Kovsie Week from 31 August to 4 September 2009. The week affords friends, colleagues and former colleagues of the UFS the opportunity to enjoy one another’s company and to experience what the university offers.

The programme is as follows:

On Monday, 31 August 2009, a star-gazing programme and lecture entitled “400 Years of Astronomy after Galileo” are presented by Prof. Matie Hoffman at the Boyden Observatory at 17:30 for 18:00. Attendance is free and bus transport will be available from the UFS Main Campus for the first 70 guests that respond. Reserved parking has been arranged with a security guard to look after the cars that are left on the campus.

On Tuesday, 1 September 2009, guests can attend the production by Pieter Venter entitled “Impi” for free in the Wynand Mouton Theatre at 14:30 for 15:00.

On Wednesday, 2 September 2009, an enjoyable morning in the company of Mr Derek de Bruyn from the National Museum is presented at the Centenary Complex of the UFS at 09:30 for 10:00. He will talk about the social life of Bloemfontein during the early 1900s and guests will be entertained by the Boere Orkes of Grey College Primary School under the direction of Santjie Louw. Attendance of this event is free.

On Thursday, 3 September 2009, at 19:00 for 19:30, a candle-light, sherry and soup evening with romantic piano music is presented at the UFS Centenary Complex by Prof. Nicol Viljoen from the UFS’s Department of Music. The programme includes, amongst others, 10 Lieder ohne worte (Felix Mendelssohn), as well as Ballade No. 1 (Fryderyk Chopin). Attendance of this event is also free.

The week will end with the Kovsie-Alumni Award Gala Dinner that will take place in the UFS Centenary Complex on Friday, 4 September 2009, at 18:30 for 19:00.
The cost per person for the dinner is R120. The Kovsie of the Year Award for alumni, the Cum Laude Award, and the Alumni Award for Exceptional Service at the UFS will be awarded at this occasion.

Transport can be arranged to all the functions and parking will be available as close as possible to the venue where the functions take place. Persons interested to attend any of the functions can contact Annanda Calitz at 051 401 3382 or ficka.stg@ufs.ac.za, or Ms Kathy Verwey at 051 401 9343 or verweyke.stg@ufs.ac.za.

Media Release
Issued by: Lacea Loader
Deputy Director: Media Liaison
Tel: 051 401 2584
Cell: 083 645 2454
E-mail: loaderl.stg@ufs.ac.za
21 August 2009

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