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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

Excellent facilities, pleasant weather and hospitality attract international teams
2012-03-14

 

Germany and South Africa played friendly practice matches at the UFS during their training camps.
Photo: Johan Roux
14 March 2012

Three international hockey teams have used the practice facilities of the university since the beginning of the year to prepare for the Olympic Games in August this year. The German and South African hockey teams have practiced here on four previous occasions.

Due to the cold weather in Europe, Austria also held its hockey training camp at the university this year. In addition, four of Austria’s triathlon athletes used the cross country track and swimming pool on the Bloemfontein Campus to prepare for the Olympic Games.

Germany’s national hockey team practised at the university from 3 to 12 March 2012. South Africa made use of the facilities from 5 to 10 March and Austria’s national team has been practicing in Bloemfontein since 24 February. From 3 to 10 March, a club team from Austria also made use of the university’s facilities, including the astros, the swimming pool, the athletics track and the Biokinetics Centre. SV Arminem also played two matches against the men’s hockey team from Kovsies. The first match end 2-2. With the second match Kovsies won 4-1.

Other international hockey teams who have made use of the astros over the past six years include Russia, Argentina, Belgium, China, Azerbaidjan and the Netherlands.

Staff ensured that everything ran like clockwork during the different training camps. Ms Annemarie Ludick and Mr Frans van der Watt, under the guidance of Mr Mickey Gordon, Head: Institutional Promotion, Fundraising, Marketing and Sport, were responsible for the logistical arrangements and finances. Mr Johan Gerber saw to the maintenance of the astros. The university boasts some of the best equipped astros in the world. “Germany, for example, did not bring along any exercise balls, cones, or beds (for use by physiotherapists) because the astros are fully equipped,” said Ms Ludick.

The fact that international teams such as Germany (ranked second in the world), South Africa and Austria made use of the university’s facilities is significant. “The university’s first team got for example the opportunity to play practice games against these players. The training camps also contributed to the economy of Bloemfontein,” said Ms Ludick.

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