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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

#Women’sMonth: Men should help change narrative on violence against women – Prof Solomon

2017-08-23

The panellists at a discussion on Issues
Affecting Women at the UFS Sasol library were
Zane Thela, Head of the Gender and Sexual
Equity Office Programme, Pumla Mgobhozi, founding
member of Embrace a Sister, and
Prof Prof Hussein Solomon, Senior Professor in the
Department of Political Studies.
From the left, are: Thela, Mgobhozi, Prof Solomon,
and Betsy Eister, Director: Library and
Information Services.
Photo: Jóhann Thormählen

The fight to eradicate violence against women is one which men should be involved in. According to Prof Hussein Solomon, Senior Professor in the Department of Political Studies at the University of the Free State (UFS), men have to help change the narrative of physical abuse and sexual violence which they perpetrate against women and children.
“Let them (men who might be offended by the #men are trash) reject violent masculinities, and in the process let them redefine what being a man is about. Let fathers teach their sons that no means no.”

Panel discussion on Issues Affecting Women
Prof Solomon was part of a panel discussion on Issues Affecting Women, organised by the UFS library, in collaboration with the Gender and Sexual Equity Office and Embrace a Sister, as part of Women’s Month in the UFS Sasol library on 3 August 2017.
The other panellists were Zane Thela, Head of the Gender and Sexual Equity Office Programme at the UFS, and Pumla Mgobhozi, founding member of Embrace a Sister. Prof Solomon’s book Understanding Boko Haram, focusing on the kidnapping of 200 young women in Nigeria was also launched.

Don’t accept things as they are
Prof Solomon says that responses by the SA government have no credibility and a lot more could be done. “What is clear is that outrage alone will not end this violence.”
Even at SA universities there are many examples of how women are mistreated. “We need to ask: What more can we do as a university to assist these (female) students.”

According to Thela, it is sad that these issues are only talked about seasonally (like during Women’s Month).
Thela says people should raise their children differently in order to change the narrative. “Then men won’t think they have to prove themselves to women.”
And we shouldn’t accept things as they are: “The most dangerous statement in society is to say: ‘It has always been done this way."

Role of women in their fate
Mgobhozi emphasised that women have a hand in the way they are being seen and treated in society. She therefore asked: “What is the role of women in making sure that we dismantle patriarchy”.
According to her women, especially black women, should dismantle the status quo. She added that cultures and parents often influence the way women are seen.
“Women should fight these social problems together,” Mgobhozi says.

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