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25 March 2022 | Story Leonie Bolleurs | Photo Charl Devenish
Prof Liezel Herselman Inuagural Lecture
At the inaugural lecture were from the left: Prof Danie Vermeulen, Dean of the Faculty of Natural and Agricultural Sciences, Prof Liezel Herselman, Dr Adré Minnaar-Ontong, Senior Lecturer in the Department of Plant Sciences and Subject Head of Plant Breeding, and Dr Molapo Qhobela, Vice-Rector: Institutional Change, Strategic Partnerships and Societal Impact.

Prof Liezel Herselman, Academic Head of the Department of Plant Sciences at the University of the Free State (UFS),) delivered her inaugural lecture on the Bloemfontein Campus this week (24 March 2022). The theme of the lecture was the ongoing battle against destructive cereal killers. 

With 28 years of extensive experience as a researcher, her work focuses on marker-assisted disease resistance breeding in wheat within a South African context. When she joined the UFS in 2004, Prof Herselman decided to apply her research expertise in marker-assisted breeding to the problems faced by wheat producers in the Free State and Northern Cape. The Free State is one of the major dryland wheat production areas in South Africa, while irrigation wheat is produced along the major rivers in the Northern Cape. 

Protection against fungal diseases

Concentrating specifically on Fusarium head blight (or wheat scab) and three rust diseases – leaf rust, stem rust, and stripe rust – she has done work to provide wheat plants with ‘tools’ to protect themselves against these fungal diseases.

According to Prof Herselman, there are many genes available in different wheat genotypes and related grass species that provide excellent protection against various races of these diseases. “Some of these genes provide protection or resistance from the seedling stage, while others provide resistance at the adult plant stage. We are thus aiming to combine as many of these genes as possible into a single wheat cultivar, without compromising yield and bread-making quality.”

She says the genes are combined by making crosses between resistant and susceptible cultivars or lines. Conventionally, through a time-consuming process, the incorporation of these genes is tested in the greenhouse and field by infecting plants with the disease to see which plants are resistant and which are not.

They can, however, follow the transfer of these genes to newly developed lines by applying molecular markers. Prof Herselman explains: “A molecular marker is a genomic fragment linked to the gene, which we can follow in the offspring we create from the crosses using different DNA techniques in the laboratory. This enables us to select new wheat lines that contain the highest number of resistance genes. The identified best lines are then used in further crosses and/or released as pre-breeding lines to commercial wheat breeding companies.”

Impact on food security

Her research has an impact on society by providing food security to both commercial and small-scale producers, as well as the end users of wheat (people buying bread and other wheat products). As researcher, it is also important for her to send out students to the workplace who can continue with this task in future.

Prof Herselman believes that when cultivars with fungal-disease tolerance or resistance are released and used by producers, it not only reduces the cost of spraying against diseases, but also increases yields by protecting the crop against fungal diseases. “We live in a world where the population is increasing daily, but land available for agriculture is not increasing and some areas are even lost due to urban development. Increasing yield in available production areas will thus have a positive impact on food security,” she says.

Besides contributing to the country’s food security, she takes pleasure in every aspect of her work. Although she misses the hands-on part of the work as academic head of the department and getting her hands dirty, she still enjoys managing the different research projects (from the conceptualisation phase to data analysis and publishing of results). The part she loves the most is to see the growth in her postgraduate students – from the moment they enter the laboratory for the first time until the day they walk out of the laboratory with their degrees. 

“It adds purpose to my life knowing that I have made a difference in a student’s life and equipped him or her with the necessary tools to be successful in the marketplace. Being able to share your knowledge is a gift, but with that gift comes a lot of responsibility as well. I am, however, up for the challenge,” concludes Prof Herselman. 

News Archive

UFS trains Kovsies to become great in world terms – Prof Jonathan Jansen
2016-01-19

Description: First-year welcoming 2016 Tags: First-years, UFS First-years

First-year students from the University of the Free State (UFS) recently attended the welcoming ceremony at the Red Square of the Bloemfontein Campus.
Photo: Johan Roux

The University of the Free State (UFS) does not train Kovsies to become great in Bloemfontein or even South Africa. The UFS trains them to become great in the world.

With these words, Prof Jonathan Jansen welcomed the first-year class of 2016 to the “home of Wayde van Niekerk, Rolene Strauss, and the 2015 Varsity Cup rugby champions”.

Prof Jansen, Vice-Chancellor and Rector of the UFS, welcomed the newcomers to the start of the “best time of their lives” on 15 January 2016 at the Red Square of the Bloemfontein Campus. First-years and their parents attended the annual welcoming ceremony.

Prof Jansen congratulated the students on choosing the UFS, and on being part of the elite group that was selected to study at the university.

The UFS received 25 142 applications from newcomers, he said, although there are only about 8 000 places. In 2015, there were roughly 17 500 applications.

He said it was also the most diverse group of applications the UFS had ever received.

Access to education

According to Prof Jansen, the UFS is committed to helping poor students gain access to education, no matter what their background or the colour of their skin.

Lindokuhle Ntuli, the UFS Student Representative Council (SRC) President, said higher education should be more accessible. He said South Africa has allowed education to become commercialised.

“The sooner we as a country realise education isn’t an expense, but rather an investment, the better,” he said.

UFS campaigns

Prof Jansen thanked the UFS SRC for the Right to Learn (R2L) campaign. Launched by the SRC on 30 October 2015, this campaign has already raised R1.2 million to help academically-deserving underprivileged students to study.

“I have launched a campaign myself to raise R100 million between now and September. About 50% of my time will go into this,” Prof Jansen said.

“I will work tirelessly with Lindokuhle and the SRC to raise money.”

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