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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

Open Day engulfs Bloemfontein Campus with colour, crowds and cheer
2013-05-04

 

08 May 2013
Photo: Lelanie de Wet


   Open Day YouTube video

The procession – comprising of Prof Jonathan Jansen and the Deans of all the UFS faculties – stately entered a packed Callie Human Centre on Saturday morning 4 May 2013. As everyone took their seats, all the lights were abruptly cut, leaving the hall in a stunned silence. Suddenly brilliant beams of green, blue and red lights cut through the dark, exploding into a spectacular laser show.

Open Day 2013 on the Bloemfontein Campus was officially under way.

The audience of parents and prospective students were awe-struck by a transfixing electric guitar performance, dancers lit up by LED suits, pulsing music and finally Corneil Muller singing to the accompaniment of Prof Jansen behind the piano.

Vice-Chancellor and Rector, Prof Jansen immediately made attendees from across all nine provinces, Namibia, Lesotho and several other countries feel at home and embraced by the university. During his welcoming address, Prof Jansen referred to the fact that Kovsies places the bar high when it comes to achievement. “We expect more of our students,” he said. “Passing is not important, passing wéll is important.” He stressed that at the university we teach students to be decent, to be exceptional people. “We place a high premium on being an outstanding human being.” He went on to say that our students are better than the previous generation – they do not carry the baggage of the old.

Prof Jansen also communicated the university’s commitment to developing leaders with an understanding of the world. This is why the university afford students the opportunity, amongst other things, to study abroad. Students have access to a wide variety of organisations and the privilege to have access to leaders who they can converse with. Kovsies strives to produce leaders, not only in the community, but on a global platform.

To demonstrate this last point, top Kovsie achievers joined Prof Jansen on stage to relay their stories of perseverance, courage and success. Included among these stars, were athlete Danél Prinsloo; Varsity Cup Player that Rocks 2013 Oupa Mohoje; DW Bester, a Rhodes Scholar currently studying at Oxford University in the United Kingdom; and Jurie Swart, who ranked under the top five in the 2012 International Graduate Architecture Student Design competition.

The residences pulled out all stops when it came to the presentation of their individual stalls. The gardens in front of the Main Building burst with colour, sound, dancing and laughter as the residences competed to draw the most visitors. The faculties also opened their doors for a glimpse at the exciting opportunities awaiting prospective students.

A record amount of visitors went home with the words of Rudi Buys, Dean of Student Affairs, inscribed in their minds summing up what the UFS is all about: “Where a sense of community matters more than the colour of your skin.”

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