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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

South African citizens are yearning for a good story to tell
2014-03-13

 
Dr Sethulego Matebesi
Photo: Sonia Small

The 20 Year Review is in essence a continuation of President Jacob Zuma’s State of the Nation Address and the ‘we have a good story to tell’ narrative. The report provides a glowing picture of successes achieved over the two decades. The successes highlighted include the basic human rights enjoyed by South Africans, a marked improvement in economic growth, and the provision of social services such as health care, education and housing. And as expected, the Review is dedicated to Nelson Mandela.

The major accomplishments were made through the strategic policies of the ruling African National Congress (ANC). For example, emphasis has been on improving the lives of South Africans through pro-poor economic interventions, in building social cohesion, investing in economic infrastructure, fighting HIV and AIDS and tuberculosis, which resulted in improved health outcomes.

Generally, the assertions about ‘accomplishments’ have been made against solid evidence and are thus not debatable. What overshadows the 20 Year Review, is the story that is not being told. This is the story of a political economy marred by rampant corruption, high levels of unemployment, declining accountability, and unresponsiveness. This untold story has become the hallmark of President Zuma’s tenure. Meanwhile, the average South African citizen is still yearning for ‘a good story to tell.’

For more political comment or to speak to Dr Matebesi, please call René-Jean van der Berg at +27(0)83 645 5940.

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