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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

Access meets quality in UFS-Varsity College partnership for law degree

2012-07-30

At the event were, from the left: Mr Frank Thompson, CEO of ADvTECH, Prof. Jonathan Jansen, Vice-Chancellor and Rector of the UFS, and Prof. Johan Henning, Dean of the Faculty of Law at the UFS.
Photo: Johan Roux
30 July 2012

The University of the Free State (UFS) and Varsity College this week officially launched a partnership whereby the university’s Faculty of Law will offer a four-year Bachelor of Law qualification through the UFS School of Open Learning on eight Varsity College campuses nationwide. This new degree will be offered as early as 2013.

This is the fulfilment of a dream, said Prof. Johan Henning, Dean of the Faculty of Law at the university. He was one of the speakers at the event that was attended by staff members and management from the, Faculty of Law, the university’s South Campus, Varsity College and ADvTECH.

The UFS Faculty of Law is one of the oldest and most distinguished faculties of law in South Africa, and has a close association with several overseas universities which ensures that the institution is internationally recognised.

“I am very positive and enthusiastic about this new partnership. We want to make this an enriching experience for staff and students from both the university as well as Varsity College,” Prof. Henning said.

The CEO of ADvTECH, Mr Frank Thompson, said he is overjoyed about the project and its potential. Varsity College is a brand of the ADvTECH Group, a JSE listed company invested in human capital.

“This is a new beginning for Varsity College and the UFS. Learning together, the slogan for this project, is very appropriate. We are excited to add new students to the university and Varsity College’s line-up,” Mr Thompson said.

Varsity College is part of the Independent Institute of Education (IIE), the leading provider of private higher education in South Africa. According to Dr Felicity Coughlan, Director of the IIE, the partnership between the IIE and the university is an example of the potential that is inherent in public-private partnerships to increase the range of high quality options available to students.

Prof. Jonathan Jansen, Vice-Chancellor and Rector of the UFS, who also was one of the speakers at this event, said with this partnership, students will get the best of both worlds in accessing higher education.

The Faculty of Law will ensure that students obtain both a thorough grounding in legal theory, as well as a solid practical foundation, and Varsity College, through a strong commitment to innovative teaching and learning, will empower more students to become legal graduates of the highest calibre. Thus, the innovative partnership between the UFS and Varsity College will produce a Bachelor of Law degree that is highly sought after in the legal profession.

This partnership is the first of its kind, paving the way for increased collaboration between public and private tertiary institutions to best serve the education sector and the future of graduates.

“This is what is possible when two dynamic partners like the university and Varsity College come together,” Prof. Jansen said.

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