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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

Success of Schools Partnership Programme embodies essence of UFS
2016-01-04

Description: Schools Partnership programme Tags: Schools Partnership programme

The everyday function and subsequent success of the SPP have come to embody the very essence of the UFS: inspiring excellence; transforming lives.

Addressing the urgent need for quality education at school level, the University of the Free State (UFS) established the Schools Partnership Project (SPP) in 2012. The aim of the project has been to turn ineffective schools into institutions producing outstanding results, thereby increasing the number and quality of first-year students at the UFS.

Within three years, the SPP has grown to include 68 primary and secondary schools across the Free State and the Sterkspruit area in the Eastern Cape. The programme is headed by Dr Peet Venter and run from the UFS South Campus. Expert mentors assist teachers and principals at these schools on a weekly basis, helping them to excel at their core functions. The programme’s success has been phenomenal.

Learner results from the SPP schools show a marked improvement compared to previous years. Teachers report that they have gained a broader understanding of the subjects they teach. “The university is doing a great job with this programme,” says one of the teachers. “We have developed a lot. We really appreciate this partnership.” Teachers not only gain substantial expertise in areas of planning, presentation, and subject knowledge; an increasing number of them have been receiving promotions, too.

The principals experience similar positive results, and regard the SPP as a productive contribution to their schools. The project has also established closer cooperation between principals and schools. This enables them to achieve common goals, share knowledge, and deal with challenges together.

An added spin-off of the programme has been the increased involvement of parents and care-givers. “We experience much more involvement from the community,” says mentor Danie Nieuwenhuizen. Parents start to take it upon themselves to tidy school grounds, care for vegetable gardens, and prepare food at school feeding schemes. Even the Sustained Silent Reading programme – that supplies magazines to learners – is now having an impact on households and communities. Many homes have never had magazines or other reading material before the reading programme.

The everyday function and subsequent success of the SPP have come to embody the very essence of the UFS: inspiring excellence; transforming lives.

 

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