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06 December 2018 | Story Leonie Bolleurs | Photo Barend Nagel
Marcelle Vermeulen
Marcele Vermeulen, a graduate from the Department of Plant Sciences, explores possible threats to crop production; contributing to food security in South Africa.
Global food security is currently threatened both by climate change and the low diversity of crops relied on by humankind to feed a growing world population. Marcele Vermeulen, a graduate in the Department of Plant Sciences who will receive her PhD at the December graduation ceremonies at the University of the Free State (UFS), is part of a team that is working hard to add to the diversity of staple foods in South Africa.

In the drive to focus on alternative crops, Marcele is researching the crop, Amaranthus cruentus, (grain amaranth). It is more tolerant to environmental stress for large-scale production, thereby also diversifying staple crops.

Relatively new development

“Amaranthus cruentus is an excellent candidate due to its high nutritional value and tolerance to drought and high temperatures. It can be mixed with conventional maize meal, to increase the protein intake of its consumers,” said Marcele.

The production of A. cruentus as a grain crop in South Africa is a relatively new development.

In her research, exploring the possible threats to crop production and paying particular attention to dominant plant pathogens in the Amaranthus cruentus, Marcele found a correlation between fungal pathogens and insect pests. 

Insect pests can influence plant diseases

Although reports on fungal pathogens and pests specific to A. cruentus are limited to and information for South Africa is limited to this study, there is a possibility that by controlling insect pests such as weevils, one might also be able to control fungal pathogens of Amaranthus cruentus.

Marcele believes that control of weevil pests should thus be the focus of future pest and pathogen management strategies and breeding programmes in A. cruentus.  

“Knowledge gained in my thesis will hopefully aid in the development of future cultivation practices, integrated pest/pathogen management programmes, as well as for the registration of crop protection products for A. cruentus,” Marcele added.

Research Contributes to Food Security from University of the Free State on Vimeo.

News Archive

Prof Habib addresses inequality at public lecture
2014-08-06

 
One of South Africa’s leading political commentators, Prof Adam Habib, gave a public lecture and launched his latest book on the Bloemfontein Campus on Wednesday 30 July 2014. The event was hosted by the Department of Philosophy in association with Wits University Press and The Southern African Trust.

Prof Habib started his lecture by summarising his book, ‘South Africa’s Suspended Revolution: Hopes and Prospects’. “It is basically about: how did we get where we are today, and how do we get out of the mess we are in?” he said.

His book focuses on South Africa’s transition into democracy and the country’s prospects for inclusive development – which formed the basis of his talk. Prof Habib stressed the issue of inequality facing South Africa and discussed the different approaches to addressing the matter.

“The one approach is that it is simply something we have to live with,” he said. “People who believe this live in a bubble. For example, service delivery protests do not happen because of poverty – it happens because of inequality.”

Prof Habib cautioned against not taking the matter seriously. “Inequality went up consistently in South Africa over the last 20 years. This is however not solely a national challenge, but a global challenge. And South Africa is the frontline of the war on inequality.”

He proposed that the expectations of the rich, rather than the poor, should be addressed.
“We need to moderate expectations. But we can’t moderate the expectations of the poor, if not the rich. We can’t ask the poor to sacrifice what the rich won’t.

“South Africa is once again at a moment of reckoning, where we are forced to make hard choices – in order to make the right choices.”


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