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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

New violinist for Odeion String Quartet
2013-02-06

Samson Diamond
06 February 2013



The Odeion String Quartet has a new member, a young accomplished violinist with a string of awards to his name. Samson Diamond, who won the Standard Bank Young Artist Award for Music in 2010, has joined the quartet. He is the first male member the quartet has had for about five years. The Soweto-born violinist replaced Denise Sutton, former leader and first violinist. He will lead the quartet, a flagship of the university and the only resident string quartet at a South African university. The other three members are Sharon de Kock (violin), Jeanne-Louise Moolman (viola) and Anmari van der Westhuizen (cello).

Twenty-eight year old Diamond, a graduate of the Royal Northern College of Music in Manchester, UK, says he is looking forward to working with students from the Odeion School of Music. “I am sure there are many talented students here.”

The musician, who obtained both his Bachelor of Music Honours degree and his Masters of Music Performance degree with distinction, will be based in Bloemfontein on a full time basis. As a member of the quartet, he will be giving concerts, coaching chamber music for the various chamber ensembles and will also give individual lessons to some of the violin students at the School.

Diamond, who started playing the violin at age ten, boast a long list of achievements. At age 12, he was leader of the Buskaid Soweto String Ensemble, one of the country's prominent youth projects. He was a founding member of the jazz classical band Quattro Fusion and former leader of the Diamond quartet. He has performed before many distinguished guests, including Queen Elizabeth II, the Duke of Edinburgh and former presidents Nelson Mandela and Thabo Mbeki.

Diamond says being the first male member in years will not bring about a change in the quartet He says it is about the standard of playing and the calibre of music.

“Music is music whether you work with men or women.”

Diamond’s first performance as member of the quartet will be on 21 February 2013. Details about the performance will be communicated later.

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