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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

UFS celebrates Africa Month
2017-05-24

 Description: ' Africa Month Tags: UFS celebrates Africa Month

Most of the international students at the UFS come from
the Southern African Development Community (SADC)
and other countries in Africa.

Photo: iStock

“Africa Month provides an opportunity
to every student and staff member to
commemorate African unity and celebrate
our rich cultural heritage, diversity,
energy and social dynamism.”

The University of the Free State (UFS) celebrates Africa Month to commemorate African unity and praise cultural heritage, as well as to take ownership of the future of the continent. According to Prof Heidi Hudson, Director of the Centre for Africa Studies, these are reasons to take part in the festivities.

Formation of Organisation of African Unity

Africa Day is the day on which Africa observes the creation of the Organisation of African Unity (OAU) on 25 May 1963. A total of 32 independent African states attended the formation.

The OAU’s aims were to promote unity and solidarity of the African states and act as a collective voice for the continent, in order to secure Africa’s long-term economic and political future and to rid it of remaining forms of colonialism. The OAU later gave birth to the African Union, which formally replaced the OAU in July 2002.

Prof Hudson says celebrating Africa Month forms part of her centre’s institutional mandate to promote an African focus in research, teaching, as well as public debate.

“Africa Month provides an opportunity to every student and staff member to commemorate African unity and celebrate our rich cultural heritage, diversity, energy and social dynamism. Secondly, by participating we all begin to take ownership of our future on this continent.”

She adds that Africa month provides a platform for reflecting on past experiences and achievements, as well as to critically assess the failures, challenges and the lessons learnt for the sake of a better future for the continent’s people.

Working relations across the continent

The UFS has working relations with universities, embassies and consulates in African countries such as Zimbabwe, Mozambique, Botswana, Zambia, Kenya, Namibia, Nigeria, Ghana, Uganda, and Tunisia.

Five cooperation agreements exist – they are with the Botho University (Botswana), Greater Zimbabwe University, Universidad Eduardo Mondlane (Mozambique), Trinity Theological Seminary Ghana, and Namibia Evangelical Theological Seminary.

According to Kanego Mokgosi, Senior Officer at Internationalisation, there are also working relations between the university and The Council for the Development of Social Science Research in Africa, Swedish International Development Agency and The United Nations Educational, Scientific and Cultural Organization. All of these focus on research development in Africa.

Most of the international students at the UFS come from the Southern African Development Community (SADC) and the continent. It hosts 1393 students from SADC countries.

“The UFS employs SADC protocol guidelines which, among others, enjoin SADC universities to admit at least 5% of their student population from the SADC region,” says Mokgosi.

Memorial Lecture by Dr Zeleza

On 24 May 2017 the Centre for Africa Studies hosted an Africa Day Memorial Lecture by Dr Paul Tiyambe Zeleza, the Vice Chancellor (President) of the United States International University Africa, Nairobi, Kenya.

The UFS library, in collaboration with the Department of English and the Office of International Affairs, also celebrated Africa Day on 25 May 2017. They hosted a conversation on the Land Debate in South Africa, together with the launch of a book titled White Narratives: The depiction of Post-2000 Land Invasions in Zimbabwe by Prof Irikidzayi Manase. He is an Associate Professor in the Department of English.

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