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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

Eugene de Kock, FW de Klerk and forgiveness – Prof Gobodo-Madikizela’s take on gestures of reconciliation
2015-02-06

What Prof Pumla Gobodo-Madikizela, Senior Research Professor in Trauma, Forgiveness and Reconciliation Studies at the University of the Free State, found over the years talking to Eugene de Kock, was a man tortured by his past. By the deeds he has committed.

“As a result he was confronting these – not as a cog in a machine – but as a person who actually did the deed himself,” Prof Gobodo-Madikizela said during an interview [https://soundcloud.com/primediabroadcasting/dr-gobodo-on-de-kock-parole] with Pippa Hudson on Cape Talk. A man taking personal responsibility.

Against the backdrop of De Kock recently granted parole, what, then, is the nature of forgiveness?

“Often people think when they forgive, you forgive and forget. That’s not the point,” Prof Gobodo-Madikizela says. “Forgiving, in fact, I found is the wrong word. We are using forgiveness for a range of responses. What I find useful in this kind of work is to think about how people change, how people are transformed. In other words, to think about our empathic connection to people who are our former enemies.” In other words: to reach a place where both parties can see each other as fellow human beings. “Somehow when a person expresses remorse – in the way Eugene de Kock has done – it opens a door for the different kinds of relationships to that traumatic past,” Prof Gobodo-Madikizela says.

In an article for the Sunday Times, Prof Gobodo-Madikizela refers to the motion to immortalise F W de Klerk by renaming Table Bay Boulevard after him. In this piece, she clearly points out that De Klerk is not without blood on his hands. She agrees with Mayor Patricia de Lille’s support of this tribute to De Klerk, though, when De Lille refers to ‘the spirit of reconciliation that Tata Madiba believed in’.

Justice Minister Michael Masutha – who granted De Kock parole – and De Lille “are right in evoking the memory of Nelson Mandela through these important gestures of reconciliation,” Prof Gobodo-Madikizela remarks. The need to return to Nelson Mandela’s vision, she adds, remains urgent.

Read Prof Gobodo-Madikizela’s full article, published in the Sunday Times, here.
For Prof Gobodo-Madikizela’s response to Eugene de Kock, FW de Klerk and reconciliation, read here.

 

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