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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

Pansalb’s Language Rights Monitor Project launched at the UFS

2007-01-25


Attending the launch of the Language Rights Monitoring Project were, from the left: Mr Edward Sambo (acting head of Pansalb), Prof Engela Pretorius (Vice-Dean of the Faculty of the Humanities at the UFS), Prof Theo du Plessis (Director: Unit for Language Management at the UFS) and Mr Vusi Ntlakana (head of the Free State provincial office of Pansalb).
Pansalb’s Language Rights Monitor Project launched at the UFS The Unit for Language Management at the University of the Free State (UFS), in collaboration with the Pan-South African Language Board (Pansalb), today launched the Language Rights Monitor Project on the Main Campus in Bloemfontein. In accordance with the Pansalb Act of 1995, Pansalb is responsible for the promotion and protection of language rights in South Africa, and is the chief funder of the project. The Language Rights Monitor Project was initiated in 2002 for a trial period of three years, with the aim of reporting to Pansalb, on an annual basis, on language-rights issues in South Africa, as reflected mainly in the printed media. Since then, three reports have already appeared, covering various aspects relating to language rights, including, inter alia, language-rights complaints, language-rights issues, language litigation, as well as research on language rights in South Africa. Profs Johan Lubbe and Theo du Plessis, as well as Dr Elbie Truter, all associated to the UFS, were responsible for the compilation of the first three reports. During 2006, Pansalb decided to establish the project for an unspecified period of time at the Unit for Language Management at the UFS. It is precisely for this reason that the project is being launched. The South African Language Rights Monitor will henceforth appear annually as a prestige publication of Pansalb, compiled by staff associated with the Unit. However, Pansalb has also decided to further consolidate the project, as a result of the need for a more immediate report, as well as the need to include records drawn from newspapers published in the African languages. It was therefore decided that, as from September 2006, a monthly South African Language Rights Bulletin would also be launched. Such a bulletin would provide an overview, on a monthly basis, of developments in South Africa concerning language rights, and would enable Pansalb to become more actively involved in crisis situations in which mediation is urgently needed. Two monthly bulletins have already appeared, and were favourably received by Pansalb. During the launch of the project, this bulletin was also introduced to the public for the first time. With the official launch of Pansalb’s Language Rights Monitor project in the Free State, emphasis will be placed on the leading role played by this province, and more specifically by the UFS, in the development and implementation of a multilingual policy. In future, more information on the situation regarding language-rights issues in South Africa will be made available from Bloemfontein, for the benefit of South Africa’s language-rights watchdog, Pansalb, but also for the benefit of other institutions involved in language-rights issues. A constructive contribution will thus be rendered to the cultivation of language justice, an important element of the democratisation process in South Africa. Issued by: Prof Theo du Plessis Unit for Language Management, UFS Media release Issued by: Lacea Loader Media Representative Tel: (051) 401-2584 Cell: 083 645 2454 E-mail: loaderl.stg@mail.uovs.ac.za 24 January 2007

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