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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

There’s more to media freedom than the Secrecy Bill
2012-05-04

4 May 2012

 “Media freedom is a universal human right. It cannot be abolished, but it should be managed.” The freedom of the media is protected by numerous formal documents, including the Universal Declaration of Human Rights and the South African Constitution, and is commemorated annually with the celebration of World Press Freedom Day.

 “As long as those in power have something to hide, media freedom will be under threat. This is a war that takes place on many fronts,” says Ms Willemien Marais, a journalism lecturer at the Department of Communication Science at the University of the Free State (UFS).

“On the one hand we have to take a stand against institutional threats such as the proposed Protection of State Information Bill. This is diametrically opposed to everything that media freedom and freedom of expression encapsulates.

“But on the other hand we also need to educate and transform our society. It is not only up to journalists to defend media freedom. Newspaper reports on the public hearings on this Bill earlier this year proved that ignorance concerning media freedom is a big threat. The lack of resistance against the Secrecy Bill from the general population clearly illustrates that people aren’t aware of what they are about to lose.”

 Ms Marais says the rise of social media and the accompanying awareness of individual freedom of expression have paved the way for more people to exercise this right. “The role of social media in the Arab Spring has been highlighted numerous times. The power of social media is undeniable – but alas, so is the lack of access to especially social media. We can only increase media literacy if we increase people’s access to the media – new and traditional.”

A high level of media literacy is also vital following last month’s recommendation by the Press Freedom Commission of a system of independent co-regulation for South Africa’s print media. This system proposes replacing government regulation with a panel consisting of representatives from the print industry as well as members of the general public. “It is abundantly clear that this system can only work if those members of the general public are media literate and understand the role of media freedom in protecting democracy.”

“The media is not a sentient being – it consists of and is run by people, and human beings are fallible. Protecting media freedom does not only mean fighting institutional threats. It also means increasing media literacy by educating people. And it means owning up to your mistakes, and correcting it.” 

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