Latest News Archive

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

Plant Sciences graduate contributes technique to manage stem rust

08 October 2020 | Story Leonie Bolleurs | Photo Supplied

Dr Cornel Bender received her PhD qualification at the virtual graduation ceremonies in October. The title of her thesis is: Stem rust resistance in South African wheat and triticale.

The rapid distribution of disease-causing organisms such as Ug99, a wheat stem-rust pathotype, pointed out just how vulnerable global cereal production is to disease outbreaks.

These cereals include wheat, barley, rye, oats, triticale, rice, maize, and millet and are one of the most important food sources for human consumption.

According to Dr Cornel Bender, the projected world population of 10 billion in 2057 requires a growth of more than 40% in cereal production. Wheat is grown on more hectares than any other cereal and is one of the most important sources of calories for humans. However, the growth rate of wheat yields has declined from the 1960s to the 1990s. Therefore, it is essential to increase global wheat production.

“With the regular appearance of more aggressive stem rust pathotypes in South Africa, there is a constant need to discover new sources of resistance, understand the genetic base of presently deployed sources in wheat, triticale and barley cultivars, and to manipulate the deployment of resistant sources through a more sustainable approach,” says Dr Bender.

Her PhD thesis, titled: Stem rust resistance in South African wheat and triticale, includes various fundamental aspects for the effective management of stem rust in South Africa.

Dr Bender is a Professional Officer in the Division of Plant Pathology in the Department of Plant Sciences, who received her PhD at the virtual graduation ceremonies in October.

Innovative and cost effective

Her promotors, Prof Zakkie Pretorius, Research Fellow, and Dr Willem Boshoff, Senior Lecturer in the Department of Plant Sciences, believe that she used an innovative approach to develop a cost-effective phenotyping method to select for more durable resistance types in a controlled greenhouse environment.

“In the past, results obtained from field trials used to assess adult plants for stem-rust resistance, were often influenced by abiotic factors, were seasonable in nature, expensive, and time consuming; therefore, the development of a dependable greenhouse screening system provides an important additional instrument for rust research,” says Dr Bender.

She adds that the greenhouse technique is used worldwide to screen for adult plant resistance and contribute to save time and money.

Broadening our knowledge

“Inheritance studies were undertaken to determine the genetic base of stem-rust resistance in selected South African wheat and triticale cultivars (developed from wheat/rye crosses) through seedling analysis as well as greenhouse and fieldwork,” she says.

Dr Bender believes the use and development of different resistance screening methods, the elucidation of host genetics, as well as the use of histological and microscopic methods to study early resistance responses, broaden our knowledge and understanding of stem-rust resistance in South African wheat and triticale cultivars.

Ultimately, rust researchers, grain producers, and also the general public – through access to their daily bread – will benefit from her study.

News Archive

UFS honours young researchers

2006-02-10

Some of the guests attending the recognition function were from the left: Prof Magda Fourie (Vice-Rector: Academic Planning at the UFS), Mr Joseph Smiles (lecturer at the UFS Department of Political Science and Thuthuka grant holder), Prof Frans Swanepoel (Director: Research Development at the UFS) and Dr Carlien Pohl (lecturer at the UFS Department of Microbial, Biochemical and Food Biotechnology and Thuthuka grant holder).
Photo: Leonie Bolleurs

The guest speaker was Prof Jonathan Jansen, Dean: Faculty of Education at the University of Pretoria (UP). He gave tips to young and promising researchers on how to be an outstanding scholar.
What is a Scholar

UFS honours young researchers

The University of the Free State (UFS) last night honoured 24 young researchers who are taking part in the National Research Fund’s (NRF) Thuthuka programme.

The recognition function is the first of its kind at the UFS. “The renewed focus on research development that was recently announced at the official opening of the UFS by the Rector and Vice-Chancellor, Prof Frederick Fourie, is an indication of the institution’s endeavour to create an environment in which research can be improved and flourish. This can only be obtained when researchers are being valued and that is why it is important to honour our young researchers,” said Mrs Annelize Venter, researcher at the UFS Research Development Directorate and coordinator of the programme.

The focus on research was also touched on recently by President Thabo Mbeki during the opening of Parliament when he said: “We will continue to engage the leadership of our tertiary institutions focused on working with them to meet the nation’s expectations with regard to teaching and research. For its part, the government is determined to increase the resource allocation for research and development and innovation, and increase the pool of young researchers."

According to Mrs Venter, research done in 2004 shows that the majority researchers who publish are white males above the age of 50. “Many students who undertake magister studies choose not to conduct research, but rather to do a thesis and additional subjects. This means that research is not stimulated. Students also find it difficult to obtain financial support for postgraduate studies,” she explained.
“Thutuka is a capacity building programme of the NRF that is aimed to
fund and support the qualifications of women and young black scientists and other researchers who do not have a rating for postgraduate research. It is based on a funding partnership between the UFS and the NRF,” said Mrs Venter.

Last night Prof Frans Swanepoel, Director: Research Development at the UFS, added to his by saying: “With the Thuthuka programme we aim to create and sustain a research culture at the UFS, promote international research and train researchers of a high quality and enhance the research capacity at the UFS by focusing on women, black researchers and other promising researchers.”

The programme was started by the NRF in 2001. At that stage only 17 grants were made countrywide. Last year 370 postgraduate students took part in the programme.

According to Mrs Venter the programme was implemented at the UFS in 2003. “At that stage we only had 5 grant holders. This year there are 24 Ph D and magister students on the programme,” she said.

A couple of young promising researchers, who will be participating in the programme in 2007, also attended last night’s recognition function.

The guest speaker was Prof Jonathan Jansen, Dean: Faculty of Education at the University of Pretoria (UP). He gave tips to young and promising researchers on how to be an outstanding scholar.

Nine professors were also congratulated with their promotion to senior research professor, namely Proff Louise Cilliers (Department of English and Classical Languages), James du Preez (Department of Microbial, Biochemical and Food Biotechnology), Johan Grobbelaar (Department of Plant Sciences), Dingie Janse van Rensburg (Centre for Health Systems Research and Development), Dap Louw (Department of Psychology), Philip Nel (Department of Afro-asiatic Studies and Language Practice and Sign Language), Louis Scott (Department of Plant Sciences), Dirk van den Berg (Department of History of Art) and Andries Raath (Department of Constitutional Law and Philosophy of Law).

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