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02 January 2025
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Story Gerda-Marie van Rooyen
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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.
Trauma, Forgiveness, and Reconciliation Studies attracts global attention
2016-06-27
Lerato Machetela is on her way to
Ghent University in Belgium where
she will spend 10 months working
alongside experts in the field of
historical trauma.
Photo: Eugene Seegers
Research excellence is one of the major driving forces at the core of the University of the Free State (UFS). This striving for academic distinction has found embodiment within Trauma, Forgiveness, and Reconciliation (TFR) Studies. Headed by Research Fellow and Senior Research Professor Pumla Gobodo-Madikizela, the research unit is raking in achievements consistently.
Cornell University Distinguished African Scholar Award
Leading by example, Prof Gobodo-Madikizela received the prestigious 2016 Distinguished African Scholar Award from Cornell University recently. Being honoured with this award affirms an unusual depth of knowledge and experience in a field related to the recipient’s own work. Through this award, Prof Gobodo-Madikizela is now also affiliated with the Institute for African Development and the Psychology Department at Cornell University.
Ghent University fellowship in historical trauma
Another member of TFR has caught international attention. Lerato Machetela – a PhD student at the research unit – received an invitation from scholars at Ghent University in Belgium. Machetela will leave in September, where she will spend ten months in Ghent with experts in the field of historical trauma. She will be affiliated to their university’s Cultural Memory Studies Initiative and the Psychology Department. When Machetela submitted her PhD proposal on transgenerational transmisison of trauma among the youth in Jagersfontein to the UFS Psychology Department panel, “it was hailed as a unique project, and a first for the department,” Prof Gobodo-Madikizela says.
Naleli Morojele conducting the research
in Rwanda that has formed the basis of
her new book, Women Political Leaders
in Rwanda and South Africa: Narratives
of Triumph and Loss.
Book explores triumph and loss of female political leaders
TFR cultivates thriving authors actively, the latest being Naleli Morojele, who is pursuing a PhD in the field of Political Studies. Soon, Morojele will be launching her book, Women Political Leaders in Rwanda and South Africa: Narratives of Triumph and Loss. Through the stories of significant female Rwandan and South African leaders, the reader gains insight into these women’s early-life experiences, struggles, and successes. Perhaps even more pertinently, Morojele’s book also exposes the ways in which gender inequality still works to smother their roles as citizens and politicians.