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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

Professor Antjie Krog to deliver public lecture at UFS Bloemfontein Campus
2015-06-19

Professor Antjie Krog – illustrious author, poet, and academic – will deliver a public lecture at the University of the Free State’s (UFS) Bloemfontein Campus. The topic of her discussion will be ‘They Couldn’t Achieve their Goal with Me: Narrating Rape during the South African War’.

Prof Krog’s lecture will be the third instalment of the Vice-Chancellor’s Lecture Series on Trauma, Memory and Representations of the Past. The lecture series is hosted by Prof Pumla Gobodo-Madikizela, Senior Research Professor in Trauma, Forgiveness, and Reconciliation Studies at the UFS, as part of a five-year research project funded by the Andrew W. Mellon Foundation.

Details of the event:

Date: Tuesday 23 June 2015
Time: 12:00
Venue: Albert Wessels Auditorium, UFS Bloemfontein Campus
Members of the public are welcome to attend
RSVP to Jo-Anne Naidoo: NaidooJA@ufs.ac.za

Acts of rape during South African War

To set the context of her lecture, Prof Krog explains that, about two months before the South African War officially ended on 31 May 1902, affidavits were taken from women about transgressions experienced at the hands of British soldiers. These acts included plunder, killing of stock, abduction, sexual assault, and rape. Her lecture is the first scholarly focus in terms of narrative and agency on the affidavits of 24 incidents of sexual assaults and rape since the 25-year embargo on these documents was lifted in 1982. The shelving of these affidavits is indicative of how even transcultural multiple processes failed to create an honest discourse in post-colonial South Africa about sexual violence.

Paving the way to healing historical wounds

The series focuses on the portrayal of trauma and memory in multiple ways – such as the narrative arts represented by Prof Krog. These forms of expression may ultimately pave the way to healing historical wounds.

“This topic is very timely, given a recent NRF grant we’ve been awarded for research on transgenerational trauma related to the South African war,” Prof Gobodo-Madikizela says in anticipation of the lecture.

Previous instalments of Vice-Chancellor’s Lecture Series

The first instalment of the Vice-Chancellor’s Lecture Series on Trauma, Memory and Representations of the Past was delivered by former Constitutional Court Judge, Albie Sachs, in which he discussed ‘Sites of memory, sites of conscience’. Internationally acclaimed composer and sound artist, Philip Miller, delivered the second lecture, ‘Disrupting the Silence: The Past and Transnational Memory’.


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