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The impact of cereal killers on food security

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

Access meets quality in UFS-Varsity College partnership for law degree

2012-07-30

At the event were, from the left: Mr Frank Thompson, CEO of ADvTECH, Prof. Jonathan Jansen, Vice-Chancellor and Rector of the UFS, and Prof. Johan Henning, Dean of the Faculty of Law at the UFS.
Photo: Johan Roux
30 July 2012

The University of the Free State (UFS) and Varsity College this week officially launched a partnership whereby the university’s Faculty of Law will offer a four-year Bachelor of Law qualification through the UFS School of Open Learning on eight Varsity College campuses nationwide. This new degree will be offered as early as 2013.

This is the fulfilment of a dream, said Prof. Johan Henning, Dean of the Faculty of Law at the university. He was one of the speakers at the event that was attended by staff members and management from the, Faculty of Law, the university’s South Campus, Varsity College and ADvTECH.

The UFS Faculty of Law is one of the oldest and most distinguished faculties of law in South Africa, and has a close association with several overseas universities which ensures that the institution is internationally recognised.

“I am very positive and enthusiastic about this new partnership. We want to make this an enriching experience for staff and students from both the university as well as Varsity College,” Prof. Henning said.

The CEO of ADvTECH, Mr Frank Thompson, said he is overjoyed about the project and its potential. Varsity College is a brand of the ADvTECH Group, a JSE listed company invested in human capital.

“This is a new beginning for Varsity College and the UFS. Learning together, the slogan for this project, is very appropriate. We are excited to add new students to the university and Varsity College’s line-up,” Mr Thompson said.

Varsity College is part of the Independent Institute of Education (IIE), the leading provider of private higher education in South Africa. According to Dr Felicity Coughlan, Director of the IIE, the partnership between the IIE and the university is an example of the potential that is inherent in public-private partnerships to increase the range of high quality options available to students.

Prof. Jonathan Jansen, Vice-Chancellor and Rector of the UFS, who also was one of the speakers at this event, said with this partnership, students will get the best of both worlds in accessing higher education.

The Faculty of Law will ensure that students obtain both a thorough grounding in legal theory, as well as a solid practical foundation, and Varsity College, through a strong commitment to innovative teaching and learning, will empower more students to become legal graduates of the highest calibre. Thus, the innovative partnership between the UFS and Varsity College will produce a Bachelor of Law degree that is highly sought after in the legal profession.

This partnership is the first of its kind, paving the way for increased collaboration between public and private tertiary institutions to best serve the education sector and the future of graduates.

“This is what is possible when two dynamic partners like the university and Varsity College come together,” Prof. Jansen said.

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