Latest News Archive

Please select Category, Year, and then Month to display items

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

SASOL TRAC laboratory launched at UFS Qwaqwa Campus

2006-05-08

Some of the guests attending the launch of the Sasol TRAC Laboratory at the University of the Free State's (UFS) Qwaqwa Campus were from the left Prof Peter Mbati (Principal of the Qwaqwa Campus), Mrs Zimbini Zwane ( Communications Manager of Sasol Infrachem), Prof Gerhardt de Klerk (Dean : UFS Faculty of the Humanities), Prof Fred Hugo
Director of TRAC SA) and Prof Jack van der Linde (Director of RIEP at the UFS).

SASOL TRAC laboratory launched at UFS Qwaqwa Campus

The Research Institute for Education Planning (RIEP) of the University of the Free State (UFS) today unveiled the Sasol TRAC Laboratory at its Qwaqwa campus.

The laboratory will be used to help grade 10, 11 and 12 learners and educators from the Qwaqwa region to conduct the experiments from the physical sciences outcome-based curriculum.

“The Sasol TRAC Laboratory introduces learners not only to the latest technology used by engineers and other scientists in practice but also to stimulate the learner’s interest in the field of science in such a way that more of them will enter into science related careers,” says Mr Cobus van Breda, Co-ordinator of the TRAC Free State Regional Centre.

According to Mr van Breda the newly established Sasol TRAC Laboratory will enable RIEP to train learners and their educators in Physical Sciences. The laboratory will consist of six work stations equipped with computers and electronic sensors.

“Learners from the Qwaqwa region will visit the Sasol TRAC Laboratory on regular basis to conduct experiments based on the curriculum. Data will be collected with electronic apparatus and presented as graphs on the computer so that results can be analysed and interpreted,” says Mr van Breda.

“There is a serious shortage of suitable qualified teachers in maths and science in the Qwaqwa region. Many schools in the region are not yet part of the RIEP project and are in dire need of assistance. A large number of these schools are in remote areas not reached regularly by intervention programmes,” says Prof Peter Mbati, Principal of the UFS Qwaqwa Campus.

“The establishment of the Sasol TRAC Laboratory at the Qwaqwa Campus provides us the opportunity to engage with our community and assist in the development and training of these vital education subjects. We are pleased that Sasol agreed to fund the project,” says Prof Mbati.

Students from the Qwaqwa Campus will also benefit from the TRAC programme. “Some promising students will also undergo further training and become assistants for the TRAC programme,” says Prof Mbati.

“Nurturing science and mathematical skills is of great importance in growing our national economy. Annually, Sasol invests more than R50 million in supporting mathematical and science education in South Africa. Our primary aim is to increase the number of learners gaining access to tertiary education in the science fields. Therefore, our Corporate Social Investment (CSI) education interventions at secondary school level focus on educator development and direct learner interventions such as the Sasol TRAC Laboratory,” explains Ms Pamilla Mudhray, CSI and SHARP manager at Sasol.

According to Ms Mudhray the implementation of the National Curriculum Statement for physical sciences in the further education and training (FET) phase from 2006, under resourced schools will need greater access to the tools and equipment necessary to teach the syllabus and fulfil the ideals of the curriculum.

TRAC South Africa is a national non-profit programme focused on supporting and expanding science, mathematics and technology education in secondary schools. The programme was first introduced to South Africa in 1994. In 2005, RIEP established the TRAC Free State regional centre on the UFS Main Campus in Bloemfontein.

Media release
Issued by: Lacea Loader
Media Representative
Tel: (051) 401-2584
Cell: 083 645 2454
E-mail: loaderl.stg@mail.uovs.ac.za
5 May 2006

Back

Economic and Management Sciences

Education

Health Sciences

The Humanities

Law

Natural and Agricultural Sciences

Theology and Religion

Open Distance Learning

Business School

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept