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02 January 2025 | Story Gerda-Marie van Rooyen | Photo Supplied
Prof Linus Franke
Leading the research in South Africa is Prof Linus Franke from the Department of Soil, Crop and Climate Sciences.

Scientists are actively pursuing the successful breeding of diploid hybrid potatoes from inbred lines. This is expected to revolutionise potato breeding as it holds the key to rapid genetic progress. It will introduce new varieties for commercialisation through seed. Currently, existing potato variants have a gene that renders self-pollinated seeds infertile.

Prof Linus Franke, an academic in the Department of Soil, Crop and Climate Sciences at the UFS, is leading the research in South Africa. “This technology allows the production of genetically uniform potato seed that is easy to transport and largely disease-free.” He says this differs from conventional breeding whereby only vegetative propagation is possible due to tetraploid varieties in potatoes. It also risks carrying pests and diseases from one generation to the next – leading to the accumulation of pests and diseases with each round of multiplication.

Seed innovation

Prof Franke explains that Solynta BV, a seed company based in the Netherlands that produces potato varieties that can be grown from seed, has included South Africa in their research efforts because it is one of Africa’s largest producers and exporters. Through his academic relationship with Wageningen University and Research, a Dutch institution renowned for its agricultural endeavours and food production, the UFS became involved in researching hybrid potatoes grown from seed.

Diploid seeds containing two sets of chromosomes allow easier gene manipulation to increase predictability and speedier genetic progress. The breeding approach enables the incorporation of tolerance to pests, diseases, abiotic stresses (cold, heat, drought) and other desired genetic traits.

Although Prof Franke is optimistic about this research, he is not blind to disadvantages. “Potato seeds are tiny and have little energy reserves, making it harder to grow potatoes from seed than from tubers.” He says potatoes from seed will take longer to cultivate than tubers, as farmers need to grow plantlets from seeds first, adding six weeks to the growing period. “It is possible that commercial farmers can grow potatoes directly from seed. Alternatively, perhaps more likely, specialised growers will produce tubers of potatoes from seed; these tubers are then sold as seed tubers to other potato farmers, who then continue their normal practices of producing potatoes for the market from tubers.”

Financial benefits

Prof Franke says farmers have reason to get excited. “Seed potatoes will reduce input costs, as varieties with enhanced tolerance to pests and diseases require less pesticides. Planting one hectare of potatoes requires three to four tonnes of potato tubers, but only one 25 g packet of potato seeds.” Since potatoes are a more valuable commodity than maize, this technology might also increase farmers’ income potential.

News Archive

University gets support to improve student success
2014-11-26

From the left are: Prof Francois Strydom (Director: Academic - Centre for Teaching and Learning at the UFS), Mr Rip Rapson (Chief Executive Officer, Kresge Foundation), Dr Marcus Ingram (UFS Director for Institutional Advancement) and Mr Bill Moses (Programme Director for the Kresge Foundation's Education Programme).
Photo: Hannes Pieterse

The Kresge Foundation has awarded $400 000 (about R4 million) to the University of the Free State (UFS) to increase student success through improved data analysis.

This four-year grant, as part of Kresge’s Siyaphumelela initiative, was recently announced by Mr Rip Rapson, Kresge’s President and Chief Executive Officer. This announcement was made at a symposium on South African higher education and philanthropy in Cape Town.

“Universities across South Africa are grappling with how to improve persistence and graduation rates for their black students in particular,” Mr Rapson said. “These universities will work together with the South African Institute for Distance Education to develop their data analytics capacity to find and share solutions and interventions based on solid information to improve student success.”

The UFS was only one of four universities receiving funding from Kresge. The other universities include the Nelson Mandela metropolitan University in Port Elizabeth, the University of the Witwatersrand in Johannesburg and the University of Pretoria.

The grants will help the universities build their capacities to use data to better integrate institutional research, information communication technology, academic development, student services and academic departments. Beyond the improvements sought for the UFS, Kresge hopes to see new approaches to data become mainstream for higher education in South Africa.

The Siyaphumelela initiative provides four years of institutional support and hope to create a community of practice that learns lessons that may benefit not only individual institutions and the cohort, but also potentially all of South African higher education.

Dr Lis Lange, Vice-Rector: Academic at the UFS, said improving student successes is a university goal that operates in the interface between the Human and Academic Projects of the university.

“We are delighted to be part of an initiative that is going to help us develop greater capability for data analytics and deeper integration between data and teaching and learning practices; and, at the same time, will bring the Centre for Teaching and Learning, the Directorate for Institutional Research and Academic Planning (DIRAP) and the faculties into a closer cooperation.”

Over the past four years donor income to the UFS increased considerably, both from governmental sources, trusts and foundations. By the end of 2013, governmental funding increased from about R5 million in 2011 to over R35 million. Funding by trusts and foundations increased from R5 million in 2011 to over R15 million in 2013. A general increase of 25% in funding is expected for 2014.

Dr Marcus Ingram, UFS Director for Institutional Advancement, says as the UFS begins to settle into a refined academic identity, the Department for Institutional Advancement intends to support these efforts by helping to facilitate the telling of a more integrated narrative to the university’s friends, prospects and donors.

 

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