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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

First Black Rag Queen wants to give voice to voiceless
2017-02-22

Description: Coronation ball 2017 Tags: Coronation ball 2017

The winners of the 2017 Amanzi Coronation
ball are, from the left: Devina Harry,
Second Princess; Kgomotso Sebusi,
First Princess; Prudence Mahlaba, Rag Queen;
Suhail Peerbhai, Mr Rag; Jordan Nadasen,
First Runner-up; and Mohlale Matlala,
Second Runner-up.
Photo: Gerhardus Bosch


“It is true what they say about your purpose driving you towards your goal. The ride to eventually becoming the first black RAG Queen was motivated by a pure desire in my heart to help other people.”

This is the moving words of Prudence Mahlaba, who was crowned Rag Queen at the Amanzi Coronation Ball on Friday 17 February 2017. Suhail Peerbhai, a second-year BCom Economics student, was crowned Mr Rag 2017.

Giving a voice to the voiceless
Mahlaba says she wants to make a positive impact, “not only on the less fortunate, but also on the voiceless.” The fourth-year LLB student strives to adhere to the vision of the acronym RAG (Receive and Give). RAG is mainly about a good cause in order to make a difference.
“It is beauty with a purpose, practising what you preach, and doing unto others what you want them to do unto you,” Mahlaba said.

It was a night of glitz and glamour as the finalists made a last bid for the sought-after titles at the prestigious event held at the Student Church on the Bloemfontein Campus of the University of the Free State.

Role provide foundation for change
“Becoming Mr Rag is an exceptional feeling; however, this role entails much more responsibility,” Peerbhai said. “At a time like this, it has given me a solid foundation to make a difference in communities that are less fortunate.”

His advice to future participants in the contest is, “to go for it, since it entails the most life-changing challenges students in our era can face. No classroom teachings can provide you with the same values and experiences.”

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