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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

University gets support to improve student success
2014-11-26

From the left are: Prof Francois Strydom (Director: Academic - Centre for Teaching and Learning at the UFS), Mr Rip Rapson (Chief Executive Officer, Kresge Foundation), Dr Marcus Ingram (UFS Director for Institutional Advancement) and Mr Bill Moses (Programme Director for the Kresge Foundation's Education Programme).
Photo: Hannes Pieterse

The Kresge Foundation has awarded $400 000 (about R4 million) to the University of the Free State (UFS) to increase student success through improved data analysis.

This four-year grant, as part of Kresge’s Siyaphumelela initiative, was recently announced by Mr Rip Rapson, Kresge’s President and Chief Executive Officer. This announcement was made at a symposium on South African higher education and philanthropy in Cape Town.

“Universities across South Africa are grappling with how to improve persistence and graduation rates for their black students in particular,” Mr Rapson said. “These universities will work together with the South African Institute for Distance Education to develop their data analytics capacity to find and share solutions and interventions based on solid information to improve student success.”

The UFS was only one of four universities receiving funding from Kresge. The other universities include the Nelson Mandela metropolitan University in Port Elizabeth, the University of the Witwatersrand in Johannesburg and the University of Pretoria.

The grants will help the universities build their capacities to use data to better integrate institutional research, information communication technology, academic development, student services and academic departments. Beyond the improvements sought for the UFS, Kresge hopes to see new approaches to data become mainstream for higher education in South Africa.

The Siyaphumelela initiative provides four years of institutional support and hope to create a community of practice that learns lessons that may benefit not only individual institutions and the cohort, but also potentially all of South African higher education.

Dr Lis Lange, Vice-Rector: Academic at the UFS, said improving student successes is a university goal that operates in the interface between the Human and Academic Projects of the university.

“We are delighted to be part of an initiative that is going to help us develop greater capability for data analytics and deeper integration between data and teaching and learning practices; and, at the same time, will bring the Centre for Teaching and Learning, the Directorate for Institutional Research and Academic Planning (DIRAP) and the faculties into a closer cooperation.”

Over the past four years donor income to the UFS increased considerably, both from governmental sources, trusts and foundations. By the end of 2013, governmental funding increased from about R5 million in 2011 to over R35 million. Funding by trusts and foundations increased from R5 million in 2011 to over R15 million in 2013. A general increase of 25% in funding is expected for 2014.

Dr Marcus Ingram, UFS Director for Institutional Advancement, says as the UFS begins to settle into a refined academic identity, the Department for Institutional Advancement intends to support these efforts by helping to facilitate the telling of a more integrated narrative to the university’s friends, prospects and donors.

 

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