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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

Academics receive award from SA Academy for Science and Art
2009-07-02

 
The South African Academy for Science and Art recently celebrated its centenary year on the Main Campus of the University of the Free State (UFS) in Bloemfontein. Academics involved with the UFS received awards during the academy’s recent awards ceremony. A Centenary Medal was awarded to Prof. François Retief, former Rector and Vice-Chancellor of the UFS, for his achievement in the medical sciences over an extended period. The NT Steyn Medal was awarded to Prof. Andries Stulting from the Department of Ophthalmology at the UFS for achievements in the Technical and Natural Sciences and Prof. Albie van Schalkwyk, formerly from the UFS’s Department of Music, received the Huberte Rupert Prize for Classical Music.

According to Prof. Hennie van Coller, Head of the Department of Afrikaans and Dutch, German and French at the UFS and also Chairperson of the Academy, the centenary celebrations were a highlight in the existence of the academy. “For the first time in years there was a mood of optimism that could not be restrained by any differences between the attendees. Political hatchets were buried and members from different racial groups took hands for the road ahead. The continuous themes were that of excellence, which may not be sacrificed,” he said.

In his address as Chairman, Prof. van Coller emphasised that the specific niche of the Academy (the development of the higher function of Afrikaans) should not limit the organisation to also be involved in Afrikaans at grassroots level (especially rural brown people and suburban white people) who often had to deal with poverty and illiteracy and who battled for survival. The Academy had to act as facilitator and offer its expertise to people like those.

At the awards ceremony of the South African Academy for Science and Art were, from the left: Mr Jaco Jacobs, who received the Elsabe Steenberg Prize for translated Children’s and Youth Literature in Afrikaans, Prof. Hennie van Coller and Prof. François Retief.
Photo: Stephen Collett

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