Latest News Archive

Please select Category, Year, and then Month to display items

Plant Sciences graduate contributes technique to manage stem rust

08 October 2020 | Story Leonie Bolleurs | Photo Supplied

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

R40 million construction contract with black empowerment group starts at UFS

2006-09-04

During the ceremonial kick-off of the biggest construction project in the history of the UFS were from the left: Ms Vuyiwe Mkhupha (Manager of Sikeyi Construction), Prof Frederick Fourie (Rector and Vice-Chancellor of the UFS) and Prof Steve Basson (Head of the UFS Department of Chemistry). Photo: (Gerhard Louw)

R40 million construction contract with black empowerment group starts at UFS

The biggest construction contract in the history of the University of the Free State (UFS) to the value of R40 million has started on the Main Campus in Bloemfontein. The contractors are Ströhfeldt Construction, in a joint venture with Sikeyi Construction, a black empowerment partner.

The contract comprises the extensive modernising, refurnishing and extension of the Chemistry Building. This is the highest amount the UFS has ever spent on the refurnishing of a building.

A number of initiatives have contributed to the fact that the UFS Department of Chemistry is one of the foremost chemistry departments in the country:

Expensive equipment and apparatus to the value of almost R20 million were acquired by the department the past year;
The basis of this is a strategic partnership with Sasol, the biggest research and development company in the country;
The purchase of the most advanced 600MHz nuclear magnetic resonance spectro meter in Africa;
The purchase of a single crystal X-ray diffractometer; and
The purchase of a differential scanning calorie meter, used to test the effect of heat on chemicals. This apparatus comprises of the most advanced detectors in the world.

“Natural scientists need the necessary equipment, apparatus and laboratories to be able to exercise world-class science. Three years ago the UFS top management made a strategic decision to focus strongly on research and on our laboratories and lecture halls,“ said Prof Frederick Fourie, Rector and Vice-Chancellor of the UFS, during the launch of the Chemistry Building’s refurbishment.

“I regard this project as a symbol of our investment in science and the academy,“ said Prof Fourie.

Prof Fourie said that the UFS spent almost R100 million in the last 5 years to renovate the Main Campus. New buildings such as Thakaneng Bridge were built and other such as the Reitz Dining Hall was renovated and converted into the Centenary Complex. “These projects, together with the refurbishment of the Chemistry Building, also show how the UFS contributes to the development and growth of not only Bloemfontein, but also how we invest in the Free State,“ said Prof Fourie.

According to Ms Edma Pelzer, Director: Physical Planning and Special Projects at the UFS, the current building originally comprised of the Moerdyk Building built in 1949 and a newer wing built in 1966. This building became too small and obsolete and a new part is now being added to the eastern side.

According to Ms Pelzer a great deal of the project comprises the dramatic upgrading and modernising of laboratories, existing mechanical systems and the installation of new systems. “The nature of the work of staff and students demands sophisticated mechanical systems such as air conditioning, fume hoods, the provision of gas, etc and therefore these received specific attention. The research laboratories, lecture laboratories and office areas will also be separated for safety and greater efficiency,” said Ms Pelzer.

“Interesting design solutions for the complex needs of the department were found and I foresee that the building and its immediate environment will be an adornment to the Main Campus after its expected completion in 2008,” said Ms Pelzer.

Media release
Issued by: Lacea Loader
Media Representative
Tel: (051) 401-2584
Cell: 083 645 2454
E-mail: loaderl.stg@mail.uovs.ac.za
14 September 2006

Back

Economic and Management Sciences

Education

Health Sciences

The Humanities

Law

Natural and Agricultural Sciences

Theology and Religion

Open Distance Learning

Business School

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept