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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

Maize breeder rewarded for his research to enhance food security in Africa
2016-08-26

Description: Maize breeder rewarded  Tags: Maize breeder rewarded

Prof Maryke Labuschagne from the UFS Department
of Plant Sciences, Berhanu Tadesse Ertiro, a
postgraduate student in Plant breeding at the UFS,
and Dr Peg Redinbaugh of the US Department of
Agriculture in Wooster, Ohio.
Photo: Supplied

Ethiopia is one of the African countries, deeply affected by food insecurity. Berhanu Tadesse Ertiro, a citizen from Ethiopia started his career - after graduating with his undergraduate degree in 2003 - as a junior maize breeder. Today he is pursuing his doctorate degree in Plant Breeding at the University of the Free State (UFS).

His research had made some great strides in contributing to food security in Africa. He recently received a fellowship from the prestigious Norman E. Borlaug Leadership Enhancement in Agriculture Program (Borlaug LEAP).

This fellowship is only awarded to students whose research has relevance to the national development of the student’s home country or region. The aim of these fellowships are to enhance the quality of thesis research of graduate students from developing countries who show strong promise as leaders in the field of agriculture and related disciplines.

Low soil fertility a major maize production constraint
Berhanu is also a visiting student at the International Maize and Wheat Improvement Center (CIMMYT) in Kenya, where he is running field experiments for his PhD thesis dissertation. His research focuses on Nitrogen Use Efficiency (NUE) and Maize Lethal Necrosis (MLN) disease tolerance. Low soil fertility and MLN are among the major maize production constraints in eastern and southern Africa, where maize is staple food.

Such hybrids have the potential to contribute greatly
towards food security among farmers and their
families through increased productivity.

The use of new tools could increase breeding efficiency and reduce the time needed for the release of new stress tolerant hybrids. Such hybrids have the potential to contribute greatly towards food security among farmers and their families through increased productivity. Berhanu is looking at the feasibility of genome wide selection for improvement of NUE in tropical maize.

Fellowship includes mentorship and supervision across borders
The programme supports engaging a mentor at a United States university and Consortium of International Agricultural Research Centers (CGIAR). During his fellowship, he will be supervised and mentored by Prof Maryke Labuschagne of the UFS, Prof Rex Bernando, a professor of Corn Breeding and Genetics at the University of Minnesota and Dr Biswanath Das of CIMMYT, Kenya.

As a LEAP fellow, Berhanu was invited to attend the 30th Annual World Food Prize events to take place in October 2016, in Des Moines, Iowa. The week will include his attendance at the Board for International Food and Agricultural Development meeting, participation at side-events at the Borlaug Dialogue International Symposium and the World Food Prize.

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