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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 to send a second group of first-year students overseas
2011-03-23

Some of the students who were chosen in 2010

Following the resounding success of the University of the Free State’s (UFS) Student Leadership Development Programme in 2010, the UFS will send a second group of students to the USA in 2011 and also extend the programme by sending students to various universities in Europe and Asia.

This year a total of 150 first-year students will be selected compared to the 71 students that were selected last year. Last year’s group of students spent two weeks, between September and October 2010, at various universities across the United States.
                                         
The programme intends to expose the students to diverse cultures and enable them to learn leadership skills. The goal of the programme is to build a new class of UFS students who become leaders during their years of study and commit to building a non-racial community during and beyond their years at university.
 
Mr Rudi Buys, the UFS Dean of Student Affairs, says: “With the programme we want to develop participants’ thinking and capacity to lead in the contexts of diversity and change and we hope to direct them to programmes leading to change in student life in general upon their return.”
 
The three core purposes of allowing students an opportunity to study abroad are:
  • to introduce South African students to positive models of racial integration and integrated residential life;
  • to share and exchange ideas around issues of race, racism, racial integration and racial reconciliation, with undergraduate students abroad; and
  • to build long-term networking and collaboration between academics and researchers interested in scholarly work on themes of race, reconciliation and social justice.
 
Last year students were selected based on their ability to reflect critically on knowledge of societal issues and successful candidates were put through a preparatory development programme. They were divided into groups and given assignments to complete during the programme. A similar selection process will be undertaken this year.
 
Upon their return, last year’s group of students demonstrated extremely positive outcomes, during an assessment of the project’s goals and achievements. More than 80% of participants agreed that the course met all expectations; the content was meaningful and challenged their existing views. More than 90% felt that the course meaningfully addressed diversity. Among the successes achieved by the programme is the influence of participants in the student community.
 
Many serve as peer mentors for the Gateway First-Year Welcoming and Orientation Programme, while others serve as mentors in well-being and academic peer advisory programmes. Many have also been elected as members of executive committees of student associations and management committees in residences, while some have availed themselves to run for student governance structures throughout 2011 and 2012.
 
The programme proved to be so successful that it was decided to expand the number of students selected for the programme to 150 this year and first-year students are invited to apply. It is envisaged that 90 students will visit American universities, while 60 will visit institutions in Europe and Asia.
 
Last year the students were hosted by, amongst others, Cornell University, the University of New York, Cleveland State University and the University of Massachusetts.
Yale University, Amherst College and other American universities will join these host universities in 2011, in addition to the European and Asian institutions.
 
Those first-year students who wish to apply can find all the information at www.ufs.ac.za 
 

Media Release
23 March 2011
Issued by: Lacea Loader
Director: Strategic Communication
Tel: 051 401 2584
Cell: 083 645 2454
E-mail: news@ufs.ac.za
 

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