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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

Prof. Aldo Stroebel serves on SAYAS
2011-09-23

 
Prof. Aldo Stroebel


Prof. Aldo Stroebel, from our university, has been elected as a Founding Member of the South African Young Academy of Science (SAYAS).
 
He is currently Associate Professor in the Centre for Sustainable Agriculture, Rural Development and Extension, as well as the Director of International Academic Programmes in the Office of the Vice-Chancellor at the university.
 
The Young Academy has as its objectives to represent young scientists in advising the government on science and technology policy and human resource development. In addition, they will prepare the SAYAS to join the Global Young Academy (GYA) to engage with high-level international bodies, including the World Economic Forum. Twenty Founding Members have been elected – ten new members will be elected annually to a maximum of 50.
 
Prof. Stroebel obtained his master’s degree at the University of Ghent, in Belgium, and a PhD at the UFS after a year of graduate coursework at Cornell University in the USA. He completed post-doctoral work at Wageningen University and Research Centre in The Netherlands, where he has been appointed as a Visiting Fellow to their recently-established Centre for Food Security and Sustainable Development. He has published widely, including more than 90 journal articles, book chapters and reports, and co-edited a book published by CTA Wageningen. He has supervised ten master's and doctoral students.  
 
He serves in various capacities: he is a member of the Research and Innovation Strategy Group of Higher Education South Africa (HESA), former member of the SANPAD Board, the President of the International Network of Research Management Societies (INORMS) Conference in 2010, and Vice-President of Research and President-elect of the Southern African Research and Innovation Management Association (SARIMA).
 
Prof. Stroebel has participated in a number of national and international conferences. He was a keynote speaker at the Society of Research Administrators (SRA) in Washington DC in the USA and at the Ministerial Conference on Higher Education in Agriculture in Uganda.
 
He has worked as a consultant and/or advisor for a number of international and multinational organisations, including the Food and Agricultural Organisation of the United Nations (FAO), the United States Agency for International Development (USAID), World Bank, Lux Development, and the World Conservation Union (IUCN), Switzerland.
  

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