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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

UFS hosts sign language workshop to educate parents
2017-05-22

Description: Sign language workshop to educate parents Tags: Sign language workshop to educate parents

Back row; from left; John Keitsemore from
Bartimea School for the Deaf; Philip Cook,
the headmaster at De la Bat School for the
Deaf in Worcester; Jeannie Cook, De la Bat School
for the Deaf; front, from left; Marisa Vermeulen, mother
of two deaf children and teacher at Bartimea
School for the Deaf in Thaba Nchu; Marianne Kühn,
audiologist, and Susan Lombaard, acting Head of the
Department of South African Sign Language.
Photo: Rulanzen Martin

“Ninety percent of deaf children are born into hearing families. When parents first receive the news, they are shocked, angry and confused,” says Susan Lombaard, Acting head of the Department of South African Sign Language at the University of the Free State (UFS).

The department hosted a workshop, “Early intervention options for the child with a hearing loss”, on Friday 12 May 2017 on the Bloemfontein Campus. “It is the first time a sign language workshop of this kind was hosted by the Department of South African Sign Language at the UFS,” says Lombaard, who facilitated the workshop. They hope to make it an annual event.

Parents of deaf children do not always know how they will communicate with their children or where the child must attend school. The workshop aimed to provide parents with the necessary information on different communication options and also touched on school placement.

Support group for parents established
A support group for parents was also established, the first of its kind in the province. It will provide much-needed support, information and guidance for parents of deaf children.

Some of the speakers at the workshop included Anri Esterhuizen, an audiologist; Marianne Kühn from the Carel du Toit Centre, Marisa Vermeulen, who is a mother of two deaf children, and Phillip Cook, the headmaster at De la Bat School for the Deaf in Worcester, in the Western Cape. Jeannie Cook, also a presenter, provided information on sign language acquisition of the small deaf child, which is done through creative play.

Professionals have responsibility
South African Sign Language is a language in its own right and is not international. “Sign language is a visual language with its own grammar and syntax different from spoken language,” Lombaard said.

There has been much controversy surrounding teaching deaf children to speak and teaching them to sign. “We as professionals have the responsibility to provide information on all options. This is to help the parent make informed decisions about communication and school placement.”

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