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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

Prof Antjie Krog speaks on verbalising revulsion and the collusion of men
2015-06-26

From the left are Prof Lucius Botes, UFS: Dean of the Faculty of the Humanities; Prof Helene Strauss, UFS: Department of English; Prof Pumla Gobodo-Madikizela, UFS: Trauma, Forgiveness and Reconciliation Studies; Prof Antjie Krog, UCT: Department Afrikaans and Dutch; Dr Buhle Zuma, UCT: Department of Psychology. Both Prof Strauss and Dr Zuma are partners in the Mellon Foundation research project.

“This is one of the bitterest moments I have ever endured. I would rather see my daughter carried away as a corpse than see her raped like this.”

This is one of 32 testimonies that were locked away quietly in 1902. These documents, part of the NC Havenga collection, contain the testimonies of Afrikaner women describing their experiences of sexual assault and rape at the hands of British soldiers during the South African War.

This cluster of affidavits formed the foundation of a public lecture that Prof Antjie Krog delivered at the University of the Free State’s (UFS) Bloemfontein Campus on Tuesday 23 June 2015. The lecture, entitled ‘They Couldn’t Achieve their Goal with Me: Narrating Rape during the South African War’, was the third instalment in the Vice-Chancellor’s Lecture Series on Trauma, Memory, and Representations of the Past. The 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.

Verbalising revulsion

The testimonies were taken down during the last two months of the war, and “some of the women still had marks and bruises on their bodies as evidence,” Prof Krog said. The victims’ words, on the other hand, struggled to express the story their bodies told.

What are the nouns for that which one sees? What words are permissible in front of men? How does one process revulsion verbally? These are the barriers the victims – raised with Victorian reserve – faced while trying to express their trauma, Prof Krog explained.

The collusion of men

When the war ended, there was a massive drive to reconcile the Boers and the British. “Within this process of letting bygones be bygones,” Prof Krog said, “affidavits of severe violations by white men had no place. Through the collusion of men, prioritising reconciliation between two white male hierarchies, these affidavits were shelved, and, finally, had to suffer an embargo.”

“It is only when South Africa accepted a constitution based on equality and safety from violence,” Prof Krog said, “that the various levels of deeply-rooted brutality, violence, and devastation of men against the vulnerable in society seemed to burst like an evil boil into the open, leaving South African aghast in its toxic suppurations. As if, for many decades, we did not know it was there and multiplied.”

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