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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 attracts thousands
2012-05-02

 

Campus was abuzz with prospective students and their parents finding out what Kovsies has to offer.
Photo: Kaleidoscope Studios
1 May 2012

“It is easier to pass Grade 12 today because we don’t have a standard. However, at the University of the Free State, standards are important.”

This was Prof. Jonathan Jansen, Vice-Chancellor and Rector of the UFS’ message when he addressed a packed Callie Human Centre on the Bloemfontein Campus during this year’s Open Day.

“This university is the jewel of the country. Here at Kovsies we take academic standards seriously. You must know who you are in a place where academic standards are extremely important. Anyone can obtain a degree, but here you can get more than a degree. You get an education,” he said to the more than 5 000 learners and parents from across the country.

“It is not only important that you study here in South Africa, but also in other countries. That is why our students study all over the world. You must think out of your comfort zone, have a big heart, achieve great heights and show everyone that you are a Kovsie.

But, it is not all about studying – it is also about being human and reaching out to others. When you come to this university, you will also do other things that will make you proud of being a Kovsie.

Quality looks for quality. Therefore, work hard and study hard because you need to be at a good university,” he said.

The programme consisted of, among others, a spectacular laser show, a performance by Bobby van Jaarsveld and special messages from DW Bester and Sannah Mokone, Rhodes Scholars currently studying at Oxford University in the United Kingdom.

In a pre-recorded message DW, a Ph.D. student in Mathematical Statistics, encouraged prospective students to work hard and persevere. Sannah, doing a Master’s degree in African Studies, said she believes in the future of the African continent. “I believe in our future students and know you can make it.”

Prof. Jansen also introduced some of the university’s recent student achievers such as Jurie Swart, regional winner of the Corobrik Architectural Student of the Year Award; Farzana Samuel, named by the Association of South African Quantity Surveyors (ASAQS) as the most outstanding student in quantity surveying for 2012; and Sibusiso Tshabalala, one of Google’s Top 10 Young Minds.

Richard Chemaly, President of the Central Student Representative Council (CSRC), said that, by coming to Kovsies, prospective students would become the best person they can be. “We have over 70 student organisations to help you take part in student life activities. So, make use of these opportunities,” he said.

The programme concluded with an introduction to the seven faculties by the respective deans.

The estimated 7 000 prospective students and their parents also had the opportunity to visit faculties and the stalls of residences.
 

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