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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

UFS shines in MBA survey

2006-10-25

Here are Prof Tienie Crous (Dean: Faculty of Economic and Management Sciences at the UFS) and Prof Helena van Zyl (Director of the UFS School of Management) with a copy of the Financial Mail.
Photo: Leonie Bolleurs

UFS shines in MBA survey
According to a recent survey published in the Financial Mail, the MBA programme presented by the School of Management at the University of the Free State (UFS) was rated jointly second best in the country by its graduates in terms of quality and standard.
The UFS MBA Programme was also rated fourth best by its graduates in terms of relevance to their business.

“I am overwhelmed and very proud that the School of Management, although we are a young school and have only been in existence for 7 (seven) years, has been rated so high by our graduandi. The School contributes in a very special way to much-needed business training in central South Africa,” said Prof Helena van Zyl, Director of the UFS School of Management.

“According to the survey, we have the lowest acceptance rate of applicants for the MBA programme, with only 33 students being accepted out of every 100 who apply. In general, we do not compromise on quality – as stated by our slogan: Be worth more. Given the quality of the programme, our MBA is very affordable – it offers real value for money,” said Prof van Zyl.

According to Prof van Zyl, the School of Management has had an increase the past 6 (six) months in enquiries from prospective students from Gauteng who are interested in studying the MBA programme. “They are even prepared to travel to Bloemfontein to attend classes,” she said.

This year Financial Mail moved away from an overall MBA ranking to a detailed consideration of subject area strengths for each business school in South Africa. The subject Strategy offered at the UFS School of Management was rated second in the country while the subject Economics also received the same rating.

“The School of Management is the flagship of the Faculty of Economic and Management Sciences. It gives the UFS and this faculty a standing in corporate South Africa. This is largely due to Prof Helena van Zyl’s strategy to position the school and making it visible on a national level,” said Prof Tienie Crous, Dean: Faculty of Economic and Management Sciences at the UFS.

According to Prof Crous, the UFS School of Management provides students with opportunities to obtain first-hand experience of how big and successful companies are managed. “For instance, our MBA students undertake an overseas study tour every year. This year they visited amongst others the headquarters of Airbus in Toulouse, France and next year they will be visiting the headquarters of Toyota and Yamaha in Japan,” said Prof Crous.

Media release
Issued by: Lacea Loader
Media Representative
Tel: (051) 401-2584
Cell: 083 645 2454
E-mail: loaderl.stg@mail.uovs.ac.za
24 October 2006

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