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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

Food insecurity should not stand in the way of education
2015-06-11

 

Every year, hundreds of students drop out of university due to financial difficulties – only to return to dire financial circumstances. It is only a few who manage to secure a bursary to fund their studies. These bursaries often pay only for academic and residential expenses, leaving students without additional funding for food.

The University of the Free State realized that up to 60% of its students were food insecure. Many of these students admitted to having to work after class to buy food or having to beg from friends. In 2011, the UFS launched the No Student Hungry Bursary Programme (NSH), which provides modest food bursaries to food insecure students. Currently, 130 students receive food bursaries from the programme to ensure they have one less thing to worry about while they are studying.

This year, at our Autumn Graduation Ceremony, six beneficiaries of the NSH Bursary Programme, received their degrees – an achievement all them feel they could not have reached was it not for the support by NSH.

For Tshililo Nethengwe, accounting student from Venda, her first year at university in 2012 was a daily battle. Although her parents managed to pay her study and accommodation fees, the meager monthly food allowance her parents could afford was not enough to last her the month.

“Every morning I used to tell myself not to think about food because I am here to study. Somehow, I still managed to get something to eat – even if it was just a few slices of bread a day. I was very determined to succeed in my studies, and NSH took away the burden of needing to ‘hustle’ and beg for food.”

Tshililo was one of six NSH recipients who received their degrees and is now doing her honours in B.Com Accounting.

“The NSH Bursary Programme invests in potential, and supports academic achievers who come from challenging backgrounds,” explains Vicky Simpson, co-ordinator of NSH.

“We promote the success of undergraduate students, enabling them to focus on their studies and not on where their next meal will come from. Successful graduates will have a positive and direct impact on our economy, different communities, and many households.”

The NSH food bursary is awarded to students on the basis of financial need, academic excellence, and the commitment to serve the community. We have helped more than 500 students since 2011, when Prof Jonathan Jansen, Vice-Chancellor and Rector, started NSH.

“These students share amazing stories that inspire us. Many had to endure hardship, but they managed to persevere, worked hard, and made it to university. The ability to buy a meal makes an enormous difference.”

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