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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

Student leaders reflect on post-Holocaust Germany and make connections to post-apartheid SA in study tour
2015-12-08

Njabulo Mabaso
Photo: Sam Styrax

“Our beloved South Africa (SA) has done quite a lot insofar as policy formulation to address the past imbalances is concerned. However, implementation has proven to be the biggest challenge.”

This is the view held by Nkosinathi Tshabalala, former Student Representative Council (SRC): Religious Affairs at Qwaqwa Campus of the University of the Free State (UFS), who was part of the Global Leadership Study Tour.

From 14 - 22 November 2015, a cohort of 37 outgoing SRC members studied through tours and seminars in Germany and Poland. The historical education trip was organised jointly by UFS Rector and Vice-Chancellor, Prof Jonathan Jansen, and the Student Affairs office. The study tour was supported and facilitated by the Johannesburg Holocaust and Genocide Centre.

Tshabalala added: “We know the thinking behind the likes of Reconstruction and Development Programme and the Truth and Reconciliation Commission, to mention only two. But what have these done to close the gap between the rich and the poor? What have they done to encourage proper and complete reconciliation? Germany paid for the damages which came as a result of the Holocaust, and it is time that we do the same.”

Mosa Leteane, former SRC President of the Bloemfontein Campus, echoed Tshabalala’s sentiments as they relate to the SA experience. “In light of the Rhodes Must Fall movement, one of the things that the youth was looking at were the symbols, what symbols mean, how symbols works as part of reparation and redress in a country that has come from a tragic past,” she said.

Leteane identified similarities between how our country and the two European nations have confronted the issue of trans-generational trauma and the reconciliation process, albeit in significantly differing circumstances.

“Within the first 20 years or so, it was almost like SA. Nobody wanted to talk about it, people just wanted to build the country.” Nonetheless, “the memorialisation and commemoration happened only for the last 20 years or so,” added Leteane.

Transformation of the European political, environmental, and social landscape took place only when students and the second generation began to challenge the status quo, and to lobby for transformation through the erection of memorials and monuments. Owing to the courage of the young generation, those countries were able to take meaningful steps towards transformation through an accurate narration and commemoration of history, which is a key factor in reconciliation.

Our students had the opportunity to conduct a comparative study of post-Holocaust Germany and post-apartheid South Africa in terms of how government and universities dealt with trans-generational trauma.

By being exposed to remnants of what used to be sites such as the Auschwitz-Birkenau concentration camp memorial in Poland, the young leaders were encouraged to continue their attempt at nation building and advance transformation and reconciliation.


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