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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 serious about safe campuses

2011-02-09

Mr Willie Frankim, Head of Protection Services at the UFS, in the new control room on the Main Campus.
- Photo: Dries Myburgh

The University of the Free State (UFS) officially launched its security control room recently. This new addition to the university's infrastructure, which was implemented in December 2010, has already made a contribution to the combating of crime at the UFS.

The decrease in crime statistics for January this year (5 cases), in comparison to the statistics of January 2010 (51 cases) is proof that the UFS’s new approach to combating crime on campus has an impact.

According to Prof. Niel Viljoen, Vice-Rector: Operations, the safety of students, lecturers and staff of the UFS is of the utmost importancet. For this reason, it is continuously reflected on about what can be done to improve the levels of safety for the respective campuses.

Apart from the upgraded security control room, from where, amongst others, residences, pedestrian routes, campus buildings, parking areas, entrances at gates and computer rooms at residences are observed, a number of measures have been set in place to improve the task of combating crime.

These measures include:

- Security cameras in front of all the women’s residences. The UFS is in the process of also installing
security cameras in front of the men’s residences.

- Shrubs and trees that caused obstruction in front of cameras have been pruned.

- Security officers patrol the pedestrian routes as well as the Red Square on foot from 06:00-22:00.

- A security officer has been appointed at each residence to be on duty from 18:00 to 06:00
at the residence.

- Two vehicles patrol the Main Campus on a 24-hour basis.

- The UFS is in die process to install alarms, which will be linked to the central security control room,
in all buildings.

- In certain buildings panic buttons have been installed in strategic places.

- Where possible, better entrance control to building, especially office blocks, has been implemented.

-       Better management and integration of the security workers who are contracted from outside.
        More security workers have also been appointed to do duty at each residence as well as on the
        pedestrian routes (during the hours indicated).

- A survey has once again been done of all “dark spots” on the campus and better lighting is
currently being installed.

The reduced reaction times are a direct result of the operational process between security staff in the control room with met security staff that patrols the campus on foot and by vehicle

Media Release
09 February 2011
Issued by: Lacea Loader
Director: Strategic Communication (actg)
Tel: 051 401 2584
Cell: 083 645 2454
E-mail: news@ufs.ac.za

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