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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

Artistic development at UFS to transform the face of Bloemfontein creatively
2015-07-02

The 7-metre high ‘Urban Fox’ is one of Alex Rinsler's artworks adding a fragment of the wild to the city of Shanghai in China.

Bold, bright, and beautiful public art sculptures are in the inception phase at the university’s Bloemfontein Campus. Manchester-based public artist, Alex Rinsler, of the Programme for Innovation in Artform Development (PIAD)’s forum for artist development, is to install three enthralling sculptures in the city of Bloemfontein.

The PIAD forum for artist development is an initiative of the Vrystaat Arts Festival, formerly known as the Vryfees, which aims to celebrate art in the Free State by hosting experimental art practices. In its capacity as a PIAD partner, the University of the Free State promotes increased access to, and participation in, culture as a form of human development.

Presenting an artist’s talk titled ‘Urban Safari: Art in public space,’ on the Bloemfontein Campus recently Rinsler introduced himself and his creative ideas to students, staff, and the public at the Johannes Stegman Art Gallery. The talk served as an invitation to the active participation of Bloemfontein citizens in all phases leading to the installations. Dispersed across the Mangaung Metropolitan, the giant sculptures are intended to capture and reflect different aspects of the community’s lived experiences. 

As a public artist based in the United Kingdom (UK), Rinsler has exhibited in cities nationally and internationally, with the intention of bringing a touch of the wild to urban lives. His vision is to witness the development of cities into cultural boulevards, and explore “what we can do to bring back the sense of nature, the wild” by adding new symbolism to urban lifestyle.

“I believe in creating work accessible to the public, which stimulates conversation,” said the Clore Leadership Programme Fellow (University of Manchester) and Founder of Pirate Technics - an artistic practice company.

In 2012, he worked with 31 Master’s students from 24 countries on an icon for global peace named “Under the Baobab” in London. The colourful and magnificent Baobab tree made from pieces of fabric representing distinct cultures told the story of migration to London.

Rinsler is determined that the Bloemfontein “project, similar to the London installation, will create imagery that people will remember.”

Dr Ricardo Peach, Director of the Vrystaat Arts Festival and PIAD, hopes the project fosters diversity while producing a “communal cultural product." 

“What I know about Alex’s work is that he will be working with what he calls a self-selected community, people who are interested in this, and who want to work together to build these sculptures, as part as a process for them to get a sense of where they belong, and their input into the city. It’s about people telling their own stories.”

The public installations are a way of transforming the landscape, and connecting people of “a place like Bloemfontein where communities are often still so divided,” said Peach.

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