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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

National Science Week – today's science, tomorrow's world
2014-07-30

 
For the 2014 National Science Week, the university – in partnership with the Department of Science and Technology – celebrate this country-wide event at our South Campus. For one week each year, universities, schools and science centres across South Africa highlight the role that science plays in everyday life. The theme of this year’s celebration is ‘Today’s Science, Tomorrow’s World.’

Over 4 000 learners, educators, parents and dignitaries converged at the campus on Saturday 2 August 2014 to experience science at work. The day featured an array of exciting science activities, including a sky-viewing opportunity at the nearby Boyden Observatory.

“Every aspect of life is touched by science. And with more vibrancy in the approach to teaching maths and science, great potential can be unlocked among young people – impacting on quality of life in the future,” said Dr Choice Makhetha, the Vice-Rector of the University of the Free State.

The Minister of Science and Technology, Naledi Pandor, also spoke at the event. "Our success depends on whether our country is ready to harness the advantage of large numbers of young people who are able and willing to work. This is where the provision of education becomes an important resource in ensuring that our young people are well prepared and equipped with knowledge and skills to handle life."

Events such as the National Science Week, Minister Pandor said, were aimed at boosting interest in scientific and technological development and innovation. This, in turn, helps the country transform into a knowledge-based economy. 


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