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The holy grail of potatoes

02 January 2025 | Story Gerda-Marie van Rooyen | Photo Supplied

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

Moshoeshoe's legacy lives on in university's project: City Press - 2 May 2004

2004-10-14

CITY PRESS 2 MAY 2004 P8

NEWS

JOHANNESBURG FINAL

Moshoeshoe's legacy lives on in university's project

MATEFU MOKOENA

DRUMS were beaten and the sounds of traditional songs reverberated through corridors of the University of the Free State (UFS) as Basotho students gathered at the campus over the weekend to launch a project honouring their late great king, Moshoeshoe.

The launch was organised by the Lesotho Students Association and UFS management and was blessed by King Letsie III of Lesotho.

According to UFS rector and vicechancellor, Professor Frederick Fourie, the aim of the project is to make the legacy of Moshoeshoe a living part of the university.

He said the Moshoeshoe project will include a television documentary on his life as well as an anthology of creative writings, including prose and poetry, about him.

A television documentary is already being filmed and will be screened during an international conference at UFS in October.

Fourie said the university, as part of the project, is looking at the possibility of starting an annual Moshoeshoe memorial lecture that will focus on African leadership, nationbuilding and reconciliation.

He said the university would introduce a PhD-level research course into the life and legacy of Moshoeshoe.

The university management has also taken a decision to erect a statue of Moshoeshoe on the campus.

Fourie said the project was launched after the UFS delegation, led by him, met Letsie III.

"He wanted us to ensure the legacy of Moshoeshoe is honoured and treated with the respect he deserves."

His legacy "must live on -- not only for the Basotho, but for all South Africans, black and white, and for the entire African continent", he said.

"Living out such a legacy is indeed a fitting contribution to the New Partnership for Africa's Development (Nepad) and to the maturing democracy that is being built here in South Africa," said Fourie.

He emphasised Moshoeshoe was and remains a model of African leadership.

Fourie said Moshoeshoe's diplomacy and commitment to peace put him on a par with former president Nelson Mandela as a statesman.

It is Fourie's dream that, through this project, the UFS will be able to give real meaning to words such as reconciliation, respect for the diversity of languages and cultures and the unity that is needed to build a democratic nation.

The Lesotho Students Association secretary, Sofonea Shale, said for an institution like the UFS to honour Moshoeshoe demonstrates that he was a great leader. "For Basotho students, the project is very significant as it clearly defines who we are and what we stand for.

"We believe the research into the legacy of our great king Moshoeshoe will open doors for more research into the life of Basotho in general.

"Africa as a whole can learn from his leadership style," he said.

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