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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

FF Plus court case against UFS withdrawn
2007-10-23

The University of the Free State (UFS) is pleased to announce that a Supreme Court application to have the racial integration of its student residences set aside has been withdrawn unconditionally by the Freedom Front Plus (FF+). The political party has offered to pay the assessed costs of the UFS.

The Rector and Vice-Chancellor of the UFS, Prof. Frederick Fourie, welcomed this decision by the FF+, saying all energy should now be focused on making a success of this very important nation-building initiative in the student residences. “We have been convinced all the time that we had followed a fair and inclusive consultation process which led to a thorough and well-considered decision by the Council,” he said.

The decision to integrate student residences as from January 2008 was approved by the UFS Council on 8 June 2007. This last decision was confirmed by the Council – which is the highest decision making body at the UFS -  on 14 September 2007 with an overwhelming majority, with only one vote against.

“There is now no legal obstacle to student participation in the work being done to implement Council’s decision. In fact I want to urge all students in our residences to play an active role in implementing Council’s decision,” he said.

According to Prof. Fourie much work has been done in preparation for the intake of first-years into the residences in January 2008.

Since the initial decision of 8 June 2007, the Vice-Rector: Student Affairs, Dr Ezekiel Moraka, has been leading a team of staff members and student representatives who are doing work in various sub-task teams.

“One of the main reasons for working in this way through sub-task teams, is to ensure the widest possible participation of the affected students in the implementation of the Council’s decision,” said Prof. Fourie.

These sub-task teams are working on aspects of residence life in order to make the racial integration of residences as successful as possible. These aspects of residence life include, among others:
 

  • governance structures
  • traditions and character of residences
  • diversity education and training
  • security
  • placement and recruitment

“This list is not exhaustive, but merely to illustrate the kinds of areas being looked into. I would like to encourage all students in residences to make an input into the work of these sub-task teams through the primes, the Student Representative Council (SRC) or through the offices of the Dean or the Deputy Dean of Student Affairs.

“We have already begun to implement an interpreting service at the house meetings of three ladies residences, namely Emily Hobhouse, Roosmaryn and Vergeet-my-nie. From next year this service will be extended to other residences on the Main Campus,” said Prof. Fourie.  

“In the light of withdrawal of the court case, I am appealing to all students in our residences, to join hands with fellow students and with management in creating a campus of respect and appreciation for all languages, cultures and backgrounds,” he said.

“We want our students to assist the UFS in successfully managing the rich diversity on this campus, particularly in its student residences, and in so doing become an example to South Africa of a truly non-racial, multi-cultural and multi-lingual campus, where students are appropriately educated for the workplace,” Prof. Fourie said.


Media release issued by:        
Lacea Loader
Assistant Director: Media Liaison  
Tel:  051 401 2584
Cell:  083 645 2454
E-mail:  loaderl.stg@ufs.ac.za

23 October 2007

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