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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

Three Kovsies receive prestigious Mandela Rhodes scholarship for 2015
2014-11-10

From the left: Lehlohonolo Mofokeng, Tumelo Morobane and Zola Valashiya
Photo: Stefan Lotter

 

The UFS continues to produce leaders and is proud to have three Mandela Rhodes scholars next year.

Lehlohonolo Mofokeng, Zola Valashiya and Tumelo Morobane all received this prestigious scholarship for 2015.

A Mandela Rhodes Scholarship provides full funding for a maximum of two years of postgraduate study. The award is open to all African citizens under the age of 30 years and recipients must study towards an honours or master’s degree at a recognised South African institution. Although there is no maximum number of awards, the scholarships are highly competitive, with fewer than 30 scholarships being awarded each year since its inception in 2005. The scholarships cover tuition, accommodation, meals, book allowance, general allowance, and travel expenses. Recipients of the Mandela Rhodes Scholarship are students with outstanding academic achievements, who also possess leadership ability, entrepreneurial skills, and a commitment to reconciliation. In addition to receiving funding for their studies, scholars also do a leadership development programme while in residence. The award is named after Nelson Mandela and Cecil Rhodes and is administered by the Mandela Rhodes Foundation, which is a partnership between the Nelson Mandela and the Rhodes Trusts.

Lehlohonolo has just finished his BEd Hons in Philosophy and Policy of Education at the UFS. He hopes to enroll for a master’s degree in Education Policy, Planning and Management at the University of Witwatersrand with his Mandela Rhodes Scholarship.

Zola is originally from Johannesburg and is completing his LLB degree at the UFS this year. He is planning to stay at the UFS in 2015 to do his LLM in Constitutional Law or International Human Rights Law.

Tumelo has a BSc Honours in Actuarial Science and will use this scholarship next year to study towards her master’s degree at the UFS.

“I chose to stay at the UFS because I am doing a great master's project with Munich Re through the UFS,” says Tumelo. 

“Furthermore, the CEO of the Mandela Foundation, Mr Sello Hatang, asked me to work with the foundation on a few projects that mostly focus on keeping the girl child in school across Africa, as well as helping with providing training and workshops on entrepreneurship to young people.

“So, I am looking forward to a very busy year ahead of me, which will be filled with so much learning, growth and making a difference,” Tumelo says.

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