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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

Sites of memory. Sites of trauma. Sites of healing.
2015-04-01

Judge Albie Sachs – human rights activist and co-creator of South Africa’s constitution – presented the first Vice Chancellor’s Lecture on Trauma, Memory, and Representations of the Past on 26 March 2015 on the Bloemfontein Campus.

His lecture, ‘Sites of memory, sites of conscience’, forms part of a series of lectures that will focus on how the creative arts represent trauma and memory – and how these representations may ultimately pave the way to healing historical wounds. This series is incorporated into the five-year research project, led by Prof Pumla Gobodo-Madikizela, and funded by the Mellon Foundation.

Sites of memory and conscience – and healing

“Deep in solitary confinement, I read in the Bible: ‘the lion lay down with the lamb … swords will be beaten into ploughshares.’” And with these opening words, Judge Sachs took the audience on a wistful journey to the places in our country that ache from the past but are reaching for a better future at the same time.

Some of the sites of memory and conscience Judge Sachs discussed included the Apartheid Museum, Liliesleaf, District Six Museum, and the Red Location Museum. But perhaps most powerful of them all is Robben Island.

Robben Island

“The strength of Robben Island,” Judge Sachs said, “comes from its isolation. Its quietness speaks”. Former prisoners of the island now accompany visitors on their tours of the site, retelling their personal experiences. It was found that, the quieter the ex-prisoners imparted their stories, “the gentler and softer their memories; the more powerful the impact,” Judge Sachs remarked. Instead of anger and denouncement, this reverence provides a space for visitors’ own emotions to emerge. This intense and powerful site has become a living memory elevated into a place of healing.

After Judge Sachs visited the National Women’s Memorial in Bloemfontein some years ago, he came to an acute realisation as he read the stories, experienced the grief, and saw the small relics that imprisoned commandoes from Ceylon and St Helena sculpted. “It’s so like us,” he thought, “our people on Robben Island making a saxophone out of seaweed, our people carving little things. It was so like us. It was another form of inhumanity to human beings in another period.”

The Constitutional Court

The Constitutional Court next to the Old Fort Prison is also a profound site of trauma and healing. Bricks from the awaiting trial lock-up were built into the court chambers. “We don’t suppress it, we don’t say let’s move on. We acknowledge the pain of the past. We live in it, but we are not trapped in it. We South Africans are capable of transcending, of getting beyond it,” Judge Sachs said.

Transforming swords into ploughshares

Judge Sachs had great praise for Prof Gobodo-Madikizela’s research project on Trauma, Memory, and Representations of the Past. “You convert and transform the very swords, the very instruments, the very metal in our country. In a sense, you almost transform the very people and thoughts and dreams and fears and terrors into the ploughshares; into positivity.”

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