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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

And the Best Managed Residence is…

2014-10-27

As examinations draw near and the end of the year is around the corner, residences want to know who the best of the best is.

During the 2014 Residence Awards on 22 October, the UFS announced their best managed residences of the year at the Bloemfontein Campus.

Wag-’n-Bietjie walked away with the spoils of the evening, winning both best managed female residence, and best managed residence overall. Armentum claimed the title of best managed male residence, while Sonnedou was named as the best managed day residence.

Further results for overall best managed residences and other categories are as follows:

Best Managed Residence
Male Residences:

Armentum
JBM Hertzog
Karee

Female Residences:

Wag-‘n-Bietjie
Roosmaryn
Soetdoring

Day Residences:

Sonnedou
Imperium
Marjolein

Overall Ranking:

Wag-‘n-Bietjie
Armentum
Roosmaryn

College

South College (Armentum, Emily Hobhouse, Marjolein, NJ vd Merwe, Villa Bravado)
East College (Arista, JBM Hertzog, Kayalami, Roosmaryn, Legatum, Sonnedou)
and North College (Madelief, Tswelopele, Vergeet-my-Nie, Veritas, Welwitschia)
Central College (Akasia, Kagiso, Karee, Soetdoring, Wag-‘n-Bietjie)
and West College (Abraham Fischer, Conlaurês, Imperium, Kestell, Outiniqua)

Environmental Affairs
Male Residences:     JBM Hertzog
Female Residences: Wag-‘n-Bietjie
Day Residences:        Sonnedou
Overall Winner:           Sonnedou

Diversity
Male Residences:                               JBM Hertzog
Female Residences:                          Akasia
Day Residences:                                Arista
Best Improved Male Residence:         Villa Bravado
Best Improved Female Residence:    Kestell
Overall winner:                                    Akasia

Executive Portfolios
Male Residences:                               Tswelopele
Female Residences:                          Wag-‘n-Bietjie
Day Residences:                                Imperium
Best Improved Male Residence:         Tswelopele
Best Improved Female Residence:    Marjolein
Overall Winner:                                   Imperium

Academics
Male Residences:                               Outeniqua
Female Residences:                          Wag-‘n-Bietjie
Day Residences:                                Imperium
Best Improved Male Residence:         Imperium
Best Improved Female Residence:    Marjolein
Overall Winner:                                   Wag-‘n-Bietjie

Finance
Male Residences:                               Armentum
Female Residences:                          Roosmaryn
Day Residences:                                Imperium
Best Improved Male Residence:         Villa Bravado
Best Improved Female Residence:    Kestell
Overall Winner:                                   Armentum

Culture
Male Residences:                               Abraham Fischer
Female Residences:                          Wag-‘n-Bietjie
Day Residences:                                Sonnedou
Best Improved Male Residence:         Armentum
Best Improved Female Residence:    Akasia
Overall Winner:                                   Wag-‘n-Bietjie

Sport
Male Campus and Day Residences:           Armentum
Female Campus and Day Residences:      Wag-‘n-Bietjie
Best Male RC Sport:                           Armentum
Best Female RC Sport:                      Sonnedou

First-Years
Male Residences:                                                       Armentum
Female Residences:                                                  Welwitschia
Day Residences:                                                        Sonnedou
Best Improved Male and Female Residence:            ConLaurês and Outeniqua
Overall Winner:                                                           Armentum

Prime
Male Residences:                               Tswelopele
Female Residences:                          Wag-‘n-Bietjie
Day Residences:                                Arista
Best Improved Male Residence:         Tswelopele
Best Improved Female Residence:    Arista
Overall Winner:                                   Tswelopele

Social
Overall Winner: Karee
Best Improved Residence: Kestell

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