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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

Open Day engulfs Bloemfontein Campus with colour, crowds and cheer
2013-05-04

 

08 May 2013
Photo: Lelanie de Wet


   Open Day YouTube video

The procession – comprising of Prof Jonathan Jansen and the Deans of all the UFS faculties – stately entered a packed Callie Human Centre on Saturday morning 4 May 2013. As everyone took their seats, all the lights were abruptly cut, leaving the hall in a stunned silence. Suddenly brilliant beams of green, blue and red lights cut through the dark, exploding into a spectacular laser show.

Open Day 2013 on the Bloemfontein Campus was officially under way.

The audience of parents and prospective students were awe-struck by a transfixing electric guitar performance, dancers lit up by LED suits, pulsing music and finally Corneil Muller singing to the accompaniment of Prof Jansen behind the piano.

Vice-Chancellor and Rector, Prof Jansen immediately made attendees from across all nine provinces, Namibia, Lesotho and several other countries feel at home and embraced by the university. During his welcoming address, Prof Jansen referred to the fact that Kovsies places the bar high when it comes to achievement. “We expect more of our students,” he said. “Passing is not important, passing wéll is important.” He stressed that at the university we teach students to be decent, to be exceptional people. “We place a high premium on being an outstanding human being.” He went on to say that our students are better than the previous generation – they do not carry the baggage of the old.

Prof Jansen also communicated the university’s commitment to developing leaders with an understanding of the world. This is why the university afford students the opportunity, amongst other things, to study abroad. Students have access to a wide variety of organisations and the privilege to have access to leaders who they can converse with. Kovsies strives to produce leaders, not only in the community, but on a global platform.

To demonstrate this last point, top Kovsie achievers joined Prof Jansen on stage to relay their stories of perseverance, courage and success. Included among these stars, were athlete Danél Prinsloo; Varsity Cup Player that Rocks 2013 Oupa Mohoje; DW Bester, a Rhodes Scholar currently studying at Oxford University in the United Kingdom; and Jurie Swart, who ranked under the top five in the 2012 International Graduate Architecture Student Design competition.

The residences pulled out all stops when it came to the presentation of their individual stalls. The gardens in front of the Main Building burst with colour, sound, dancing and laughter as the residences competed to draw the most visitors. The faculties also opened their doors for a glimpse at the exciting opportunities awaiting prospective students.

A record amount of visitors went home with the words of Rudi Buys, Dean of Student Affairs, inscribed in their minds summing up what the UFS is all about: “Where a sense of community matters more than the colour of your skin.”

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