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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

Democracy and political tolerance truly thrive during Qwaqwa Campus SRC elections

2016-09-16

Description: 2017 SR Qwaqwa Tags: 2017 SR Qwaqwa

The newly-elected SRC President of the Qwaqwa
Campus, Njabulo Mwali (left), being congratulated
by his predecessor, Paseka Sikhosana.
Photo: Thabiso Gamede

Voter turnout during the recent SRC elections among the best in the country at over 60%

The 2016-2017 Qwaqwa Campus SRC elections have once again proven that democracy and political tolerance are truly thriving on the Qwaqwa Campus. This was evidenced by the calm surrounding the highly contested elections ever.

According to Mandla Ndlangamandla, Electoral Committee Chairperson, this year’s elections were highly contentious, yet with a high level of tolerance.

"We only had two political structures, namely the South African Democratic Student Movement (Sadesmo) and the South African Student Congress (Sasco), but the level of engagement was really commendable,” he said.

“Of the 4 200 registered students on campus, more than 2 500 cast their votes in their quest to influence student leadership and governance to advance student aspirations," said Ndlangamandla during the handover ceremony.

In accepting the leadership baton from his predecessor, Paseka Sikhosana, the new President, Njabulo Mwali, said his immediate goal was to unite all students behind the new leadership.

In acknowledging the role student governance can play in developing the campus, the Acting Campus Principal, Teboho Manchu, said the campus was proud to have a student leadership that would always keep the interests of their constituency on top of their agenda.

“We will definitely work hand-in-hand with the new student government. In case of any disagreements, please note that you have the right to take up any such matters with the top management of the university in order to advance the entire student body,” he added.

The 2016-2017 Qwaqwa Campus SRC is as follows:

LIST OF SRC MEMBERS 2016-2017

Elective Portfolios
Name and Surname	Portfolio
Njabulo Mwali	President General
Siyabonga Ngubo	Deputy President
Joy Mapule Motloung	Secretary General
Bongela Nyandeni	Treasurer General
Mpumelelo Tshabalala	Politics and Transformation
Nomcebo Mqushulu	Media and Publicity
Ntokozo Michael Masiteng	Student Development and Environmental Affairs

Ex Officio Portfolios
Khulani Mhlongo	Arts and Culture
Polaki Mazibuko	Academic Affairs
Ntokozo Mbali Thango	Sports Affairs
Motlatsi Lisley Lebona	Religious Affairs
Sandile Ntamane	Residence Affairs
Itumeleng Chefter	RAG Comm. and Dialogue
Thulebona Thomas Khumalo	Off-campus

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