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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 helps to renovate schools

2005-10-10

Photo gallery

About 250 hostel students of the University of the Free State's (UFS) main campus yesterday painted and renovated four schools in the black townships of Bloemfontein. This was part of Kovsie Rag's new approach to be more directly involved with communities.

Students were transported with busses and performed tasks such as the painting of class rooms and outside walls and the cleaning and painting of gutters and window panes. The painting was judged by a panel of judges, that included the Rector and Vice-Chancellor, Prof Frederick Fourie. These points will contribute to the each hostel's final point in the Rag fund raising campaign for 2005/2006.

Some of the students who painted the gutters of Maboloka Primary School in Bochabelo were from the left Ms Tume Kowang (18) (first year student in B Accounting from NJ van der Merwe hostel); Ms Gloria Mangwane (19) (third year student in B Sc Biochemy from NJ van der Merwe hostel); Ms Adri Ras (21) (second year student in Occupational Therapy from Emily Hobhouse hostel) and Ms Malandi Els (20) (third year student in B Exercise and Feeding from Emily Hobhouse hostel).

See attached media statement:

UFS Rag and Eimpa paints assist with upgrading of schools

The spirit of Ubuntu will this year be truly reflected in the University of the Free State’s (UFS) Rag community out reach programme when senior students from the 23 hostels on the Main Campus will visit four less-privileged schools in the Mangaung area on Saturday 8 October 2005 to assist these schools in the upgrading of facilities.

The same day (Saturday 8 October 2005) the UFS first year students will visit the neighbourhoods in Bloemfontein from 08:00-13:00 to raise funds on an Ubuntu donation lists for Rag 2005/2006.

The Ubuntu project was started about seven years ago and it has grown each year. In the past the project was associated with a fundraising leg and a hostel publicity leg. This year the aim is to involve the community to demonstrate how important fundraising initiatives are to help those less-privileged.

The schools that will be visited are Legae Intermediary School in Batho, Mothusi Primary School in Rocklands, and the Maboloka and Lesedi Primary Schools in Bochabelo. The schools in the Manugaung area had until 31 August 2005 to complete a questionnaire identifying what assistance is needed. The Rag office, with the help of professional consultants from Eimpa Paints, chose four schools and visited each one to determine material/s needed to complete the work.

Eimpa Paints is a partner of the Ubuntu project and will be sponsoring all paint necessary to complete the work at the schools. All other material/s needed will be supplied by the UFS Rag office.

The hostels are divided into project teams and will clean and paint gutters and window sills and paint the walls of classrooms and outside walls. At Maboloka School for instance, a project team will also to paint a wall with colourful characters.

Media release
Issued by: Lacea Loader
Media Representative
Tel: (051) 401-2584
Cell: 083 645 2454
E-mail: loaderl.stg@mail.uovs.ac.za
7 October 2005

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