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08 October 2020 | Story Leonie Bolleurs | Photo Supplied
Dr Cornel Bender
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 will increase its volume of quality research
2009-11-25

 
From the left are, seated: Prof. Alice Pell, Vice-Provost: International Relations at Cornell University in the USA and Prof. Jonathan Jansen, Rector and Vice-Chancellor of the UFS; standing: Prof. Ezekiel Moraka, Vice-Rector: External Relations at the UFS, and Prof. David Wolfe from Cornell University during the signing of a memorandum of agreement between the two institutions.
Photo: Stephen Collett

The University of the Free State (UFS) is taking its research serious and is therefore going to increase its volume of quality research. This includes the production of quality scholarly books in the humanities and social sciences.

This was said by Prof. Jonathan Jansen, Rector and Vice-Chancellor, at the launch of the Strategic Academic Cluster initiative of the University on the Main Campus in Bloemfontein last night.

“We are going to produce the kind of research that is associated with scholarships. New models of training, new standards of performance and the introduction of an accelerated Vice-Chancellor’s Prestige Scholars’ Programme are among the initiatives that will be introduced. These are all aimed at boosting our university’s research performance,” said Prof. Jansen.

Another strategy to boost research performance at the UFS is the search for 25 leading professors to be appointed across the disciplines, but especially in the social sciences, education and the humanities. These positions have already been advertised and will be phased in with the goal of achieving equity and excellence in the academic and research profile of the UFS. “We’ve had an overwhelming response to the advertisements from local academics as well as those abroad,” said Prof. Jansen.

Each of the six Cluster Directors gave a short presentation of its aim and focus areas during last night’s dinner. These Clusters will in future direct the University’s research endeavours. It represents a move from a fragmented to a more focused approach to research development at the UFS.

The UFS also signed a memorandum of agreement with Cornell University (USA) last night. The guest speaker, Prof. Alice Pell, Vice-Provost: International Relations at Cornell University and member of the UFS’s International Advisory Board, said that, just as the cluster research teams need representatives from different disciplines, universities need diverse partners to recognise their potential fully. Collaborating with partners with ‘fresh eyes’ that have different cultural perspectives, access to different technologies and partners with different priorities can have important implications in the research and education provided by the UFS and Cornell,” she said.

“The interdisciplinary approach adopted by the UFS in developing the Strategic Academic Clusters seems likely to provide students with the intellectual frameworks and research tools that they need to address the problems in society,” she said.

“The most important issues facing the USA and South Africa are similar, namely how to effect the social transformation that will provide equal opportunities to all of our citizens. South Africa, Brazil, India and the USA share strong commitments to democracy, to overcoming our dark histories of religious and racial discrimination and to sustainable economic development without adverse impacts on our planet. We at Cornell are excited about the opportunity to work with the UFS on all of the clusters, but we are particularly looking forward to learning more about social transformation,” said Prof. Pell.

Media release
Issued by: Lacea Loader
Deputy Director: Media Liaison
Tel: 051 401 2584
Cell: 083 645 2454
E-mail: loaderl.stg@ufs.ac.za  
24 November 2009

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