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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

Our Abe Bailey scholars are packing for the UK
2011-08-16

 

Nida Jooste and Ryan Lamb
Photo: Earl Coetzee

Academic excellence and strong leadership has become synonymous with our university, as our two Rhodes scholars for 2011, and the recent announcement of our two Abe Bailey scholars from the UFS have shown.

Nida Jooste and Ryan Lamb are two of the proud recipients of Abe Bailey Travel Bursaries and will be heading off to the United Kingdom on 26 August 2011, to visit several universities in England and Scotland. These two were chosen from hundreds of UFS applicants and will join Abe Bailey bursary holders from the rest of the country.

Both students are academic achievers, but also excel in other fields. This is what set them apart from the rest of the applicants for the bursaries.

Ryan (23), a Medical Physics honours student at our Faculty of Health Sciences, received the Senate Medal for the best bachelor’s degree student at the UFS. He was one of a hundred students at the Brightest Young Minds Summit this year and was one of the 2008 delegates to the World Youth Forum, hosted by the International Association for Poetry and Solidarity in Italy.

This young man is the founder of a group called Poets Anonymous, which provides a platform where poets, artists and dancers in Bloemfontein can express themselves.

Nida (21) is a very familiar face on our Bloemfontein Campus, as she served as the Deputy Chairperson of the Interim Student Council for the past year.

This fourth-year LL.B. student says she has known about the Abe Bailey bursary since her first year, but had to wait to apply, since the scholarship is only open to final-year students and junior lecturers. She applied last year, but did not even make it to the short list for candidates.

“I realise now that I was not involved enough then. Luckily I became much more involved in campus activities during the past year and also improved my academic performance greatly,” she says.

Nida and Ryan both hope to use the opportunity to learn new approaches to solving problems. Ryan says he is looking forward to the opportunity to network with other bursary holders and to share experiences with them, before returning to the UFS to implement what he had learned.

Nida says she also hopes to see how universities in First-World Countries operate, in order to apply that knowledge when she returns to the UFS.

 

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