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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

Students excel at National Championships for the Physically Disabled
2013-04-07

 

South African record-holder Danie Breitenbach (left) running with his guide at the 2013 Nedbank National Championships for the Physically Disabled.
Photo: Hetsie Veitch
10 April 2013

Six gold, one silver and two bronze medals. That is the number of medals students of the University of the Free State won at the 2013 Nedbank National Championships for the Physically Disabled, held in Pretoria. 

Louzanne Coetzee, Danie Breitenbach, Juanré Jenkinson and Diederich Kleynhans held the Kovsie flag high, winning medals in track and field events. Louzanne and Danie, both visually-impaired students, each won three gold medals, with Danie setting two new South African track records. Danie, who took part in the T11/F11 sports class for visually-impaired, totally blind athletes, set records in the 800 and 1 500 metre track events. This first-year BA student, who runs with a guide and has to wear a blindfold when running, also won a gold medal in the 400-metre track event. 
 
Louzanne also took part in the T11/F11 sports class and won gold medals in the 800-, 1 500- and 5 000-metre events. With her winning time of 2 minutes and 53,8 seconds in the 800 metres, Louzanne, a second-year BA Corporate and Marketing Communication student, reached the qualifying standard for international participation. She may be considered for a national team that will compete internationally. 
 
Diederich and Juanré took part in the F37 and F38 sports class for physically-impaired athletes and won medals in the field events. Juanré, a fourth-year Education student, and Diederich, a master’s degree Theology student, won bronze and silver medals in shotput. Diederich also won a bronze medal in discus. 
 
Also taking part in the national championships, were Sidwell Monyane, a final-year B Public Management (Human Resource Management) student. Sidwell was part of the Free State Boccia team. Boccia is a target-ball sport for athletes with disabilities, which has a major impact on motor skills.

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