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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

Council concerned over health crisis
2009-06-08

The Council of the University of the Free State (UFS) has come out in support of doctors and health professionals attached to its Faculty of Health Sciences who expressed their concerns about the health crisis in the Free State.

At its meeting on Friday, 5 June 2009 the Council said it shared the concerns of health professionals that the quality of patient care and the quality of training being provided at the health faculties across the country are being compromised.

Earlier last week doctors and other health professionals of the UFS Faculty of Health Sciences issued a statement highlighting the seriousness of the crisis in health care provision in the Free State Province, warning that the system was on the verge of collapse.

According to the Council of the UFS, a petition will be addressed to the Minister of Health and the Minister of Education calling for urgent steps to be taken to correct the deteriorating situation in the province’s health care system.

In other decisions, the UFS Council also decided to confer an honorary doctorate on Judge Louis Harms, the Deputy President of the Supreme Court of Appeal in Bloemfontein.

Judge Harms is an international specialist in the field of Intellectual Property Law and has been actively involved in legislation and international agreements on intellectual property law, including the Designs Act, Trademarks Act and Patents and Copyrights Acts.

The motivation quotes one of his fellow jurists as saying that: “Harms is one of the greatest South African lawyers of the last 50 years. He is an intellectual giant who has made an impressive and profound contribution to the development of South African law: He is erudite, visionary, astute and principled.”

An honorary doctorate will also be conferred on geologist and expert on the geology of the Karoo Supergroup, Mr Johan Loock, for his distinguished efforts towards promoting the earth sciences and specifically geology, particularly in the context of the Free State.

Mr Loock has had two Karoo fossils named after him, which is a particular honour in the scientific world of palaeontology. He was employed by the UFS for 32 years and has close ties with the Free State in terms of his wide field of research interests.

The motivation further states that “the man affectionately and respectfully known as Oom Loock, or Malome, has selflessly given of his vast knowledge, expertise and insights into the physical and cultural heritage of the Free State to all who would learn from, and with, him”.

A Council Medal will be awarded to Prof. Johan Grobbelaar from the Department of Plant Sciences at the UFS. During his time at the UFS he has been a pioneer in many areas, including the first research expedition to Marion Island, the first PhD about research on Marion Island, the establishment of the Institute of Environmental Sciences as well as the establishment of the Centre for Environmental Management.

Council also decided to refer a report from the iGubu consultants regarding aspects of diversity in student residences to the Executive Committee of the Council so that the benefit of the participation of the rector-designate Prof Jonathan Jansen could be obtained and for further participation and consultation with relevant stakeholders.

In another decision the Council also extended the term of appointment of Prof. Tienie Crous as Dean: Economic and Management Sciences for an additional term of five years.

The Council furthermore appointed Prof. Hugh Patterton as the director of the strategic academic cluster dealing with advanced biomolecular research and Prof. Wijnand Swart as Director of the strategic academic cluster dealing with technologies for sustainable crop industries in semi-arid regions.

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