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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

Department of Agricultural Economics and agri-business join forces
2009-12-01

Some of the guests who attended the Department of Agricultural Economics' half-century celebration dinner were, from the left: Ms Chrisna van Heerden from Cape Wools; Mr Gielie Swart from Corporate Guarantee; Mr Jaco Heckroodt from VKB (Vrystaat Koöperasie Beperk) in Reitz; Mr Arno van Vuuren from NWK Beperk (Noord-Wes Koöperasie); Prof. Johan Willemse, Departmental Chairperson of the Department of Agricultural Economics at the UFS; and Ms Marcine Morsavel from GWK Beperk (Griekwaland-Wes Koöperasie).
Photo: Stephen Collett

The Department of Agricultural Economics at the University of the Free State (UFS) launched a bursary programme to support students studying Agricultural Economics during its recent half-centenary celebrations.

More than half a million Rands were collected from various agri-businesses at this prestigious event in order to support approximately 16 Agricultural Economics students from 2010 onwards.

“The Department is proud of the past 50 years’ training of students for agriculture in the fields of research, governance, banking and the agri-business environment and we have launched the bursary programme in order to position the University closer to agri-businesses,” said Prof. Johan Willemse, Departmental Chairperson of the Department of Agricultural Economics at the UFS.

The agri-businesses, who will act as sponsors, also benefit from the project, because they are afforded the opportunity to identify promising Agricultural Economics students as potential employees and to expose them to the activities of the businesses by means of holiday work. Upon completion of his/her studies, the student will already be fairly familiar with the circumstances of the specific agri-business and loyalty towards the business will already have been established.

Students who major in Agricultural Economics may apply for the bursary programme.

Agri-businesses that have already agreed to act as sponsors are Omnia Fertilizer, Pioneer Foods Pty, Suid-Wes Koöperasie Beperk, Corporate Guarantee, GWK Beperk (Griekwaland-Wes Koöperasie), VKB (Vrystaat Koöperasie Beperk), the National Woolgrowers Association and NWK Beperk (Noord-Wes Koöperasie).

More information can be obtained by phoning Ms Marie Engelbrecht on 051 401 9054.

Media Release
Issued by: Lacea Loader
Assistant Director: Media Liaison
Tel: 051 401 2584
Cell: 083 645 2454
E-mail: loaderl.stg@ufs.ac.za
1 December 2009

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