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06 March 2020 | Story Igno van Niekerk | Photo Igno van Niekerk
 Gert Marais looking at pecan leave_
Dr Gert Marais says the UFS is helping to ensure that the pecan industry not only survives but thrives.

“When opportunity knocks, you must jump. The more opportunity knocks, the more you should jump.” 

Look closely, and you will notice the rise in pecan-nut plantations as you travel through South Africa. Do not be surprised if you find that the UFS’s pecan-nut project – steered by Dr Gert Marais, Senior Lecturer in the Department of Plant Sciences – is associated with those pecans.

Main exporter
In an ever expanding and interconnected global economy, South Africa has joined the USA as main exporters of pecan nuts to China. We have several advantages; our seasons differ from that of the USA, and we have the benefit that we are harvesting and exporting pecan nuts at the time when they are most popular at Chinese festivals and events.

Although it takes a long time to grow pecan trees (seven to eight years before they start producing), the long wait has extensive benefits. Dr Marias explains: “Unlike other crops, you do not have to prepare the soil and plant new crops annually. Rather than re-investing, you only need to do proper maintenance. Once planted, the pecan trees can produce for generations to come. And the UFS is involved in ensuring that the pecan industry not only survives but thrives.”

Empowering farmers
As the pecan industry in South Africa grows, new challenges are identified. Some trees suffer from a condition called overall decline, others from scab, and some others are infested by combinations of fungi not found in other countries. Dr Marais and his team have filed several ‘first reports’ of combinations between pecans and pathogens, leading to opportunities for MSc research projects and making a difference in the industry.

Dr Marais undertakes six field trips per year to visit all the production areas in South Africa, share information at farmer’s days, arrange courses to ensure best practices with regard to pecan cultivation; students also use these visits to collect samples for their research. Due to the systemic collaboration between the private sector and the university, farmers are empowered to manage their pecan crops better, the university benefits from cutting-edge research, and South Africa becomes a stronger player in the international economy.

Opportunity is knocking. And the UFS is jumping.

News Archive

Plant researcher receives prestigious Grain SA award
2016-10-21

Description: Plant researcher receives prestigious Grain SA award Tags: Plant researcher receives prestigious Grain SA award

Prof Zakkie Pretorius from the UFS Department
of Plant Sciences with Andries Theron,
vice-chairman of Grain SA. Theron presented
the award to Prof Pretorius at Grain SA’s a
nnual gala event, which was held in Midrand
this year.
Photo (read more): Supplied
Photo (spotlight): Charl Devenish

A researcher in the Department of Plant Sciences at the University of the Free State (UFS), Prof Zakkie Pretorius, received the prestigious Grain Producer of the Year Inspiration Award during the annual gala event of Grain SA. Grain SA provides strategic commodity support and services to South African grain producers to assist in the sustainability of the sector.

This award is presented to individuals or organisations in appreciation of excellent contributions to the grain industry. These individuals have also achieved extraordinary results in their respective fields.

Research in the interest of food security
Prof Pretorius has been involved in research on plant diseases and food crops for the past 38 years. His research focus, rust diseases in crops, is especially important for food security.  

According to Prof Pretorius, who collaborates with an extensive network of specialist colleagues, his research covers a variety of topics including rust race identification, the discovery of new resistance genes, characterisation of resistance expression in plants, and the mapping of genes. His focus is not only on wheat, but he also researches rust diseases in oats, barley, maize, dry beans, lentils, sunflowers, and soybeans.

Breeding of rust-resistant varieties gains scientific basis
Locally, he has been contracted for several years by the Winter Grain Trust to annually evaluate commercial wheat cultivars and elite germplasm. This information is regularly passed on to the relevant seed companies and breeders, and is also included in the production guidelines of the Agricultural Research Council for disease risk assessment. His research places the breeding and selection of rust-resistant varieties on a solid scientific foundation. A living collection of rust fungus cultures and a large germplasm collection are maintained at the UFS under his supervision.

 

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