Latest News Archive

Please select Category, Year, and then Month to display items

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 to award honorary doctorate to Maria Ramos

2004-12-08

The Council of the University of the Free State (UFS) recently approved the awarding of an honorary doctorate to Ms Maria Ramos, Group Chief Executive of Transnet in April 2005. A total of five honorary doctorandi will be honored.

The other doctorandi are Proff Jan Groenewald (D Sc (hc)), Jaap Durand (D Phil (hc)), Sampie Terreblanche (C Dom (hc)) and Anthon Heyns (MD (hc)).

Me Ramos will receive an honorary doctorate in Economics (P hD (Economics) (hc)) for the large contribution she made to the establishment of a prudent fiscal and macro-economic policy in South Africa and hence, to the restoration of the financial credibility of the country in the eyes of domestic and foreign investors. Ms Ramos was the Director General of the National Treasury from 1996-2003.

She obtained the MSc-degree in Economics in 1992 from the University of London and was awarded a British Council Scholarship (Helen Suzman award) in the same year and in 1991. During the early nineties she was among others project leader of the ANC’s Macro-economic Research Group and also a member of the team that negotiated chapters on finance in the interim Constitution of South Africa. She was a research associate at the Centre for the Study of the South African Economy and International Finance at the London School of Economics and also lectured at the Universities of South Africa and the Witwatersrand.

“It is a great privilege for us to honor Ms Ramos and the other doctorandi in their different fields of expertise. This once again serves as an example of the UFS’s policy to give recognition to people who excel and make a difference,” said Prof Frederick Fourie, Rector and Vice-Chancellor of the UFS.

Prof Jan Groenewald will receive an honorary doctorate for his life-long commitment to the establishment and development of Agricultural Economics as a subject field in South Africa and in Africa and his various contributions to the UFS. During his career, Prof Groenewald received various awards among others in 1998 when he received the Stals Prize for Economics from the South African Academy for Science and Art and in 1990 when he received an honorary medal from the South African Society for Agricultural Economics.

Prof Jaap Durand will receive an honorary doctorate in Philosophy for his pioneering work on various fields in the South African society. He obtained his Masters degree in Philosophy from the UFS and contributed to almost 60 articles and collections. Prof Durand has a colourful career as academic manager: from professor in Systematic Theology and dean of the Faculty of Theology at the University of the Western Cape to Deputy Vice-Chancellor of the same university. He was the ombudsman of the University of Stellenbosch from 2002-2003.

Prof Sampie Terreblanche will receive an honorary doctorate in Economics for the important role he played, and is still playing, to keep the debate about and the need for socio-economic and socio-political reform in South Africa going. Prof Terreblanche started his career as a lecturer at the UFS. In 1992 the Stals Prize for Economics was awarded to him by the South African Academy for Science and Art. Prof Terreblanche was also a founding member of ASSET, an organisation addressing the problems of poverty, inequality and social injustice in South Africa.

Prof Anthon Heyns, Chief Executive Officer of the South African National Blood Service, will receive an honorary doctorate in Medicine. Prof Heyns is a well-known international researcher in Hematology and recently received a Centenary Medal from the UFS for his strong role and national prominence as expert and leading figure in establishing and developing Hematology at the UFS. He was the first head of the UFS’s Department of Hematology and is also co-editor of the only Afrikaans hand book of Hematology. He serves among others as a council member and member of the executive management of the South African Medical Research Council. On the international front he serves on at least five committees of the World Health Organisation based in Geneve, Switzerland. He has two honorary appointments as professor respectively at the UFS and University of the Witwatersrand.

Media release
Issued by: Lacea Loader
Media Representative
Tel: (051) 401-2584
Cell: 083 645 2454
E-mail: loaderl.stg@mail.uovs.ac.za
8 December 2004

Back

Economic and Management Sciences

Education

Health Sciences

The Humanities

Law

Natural and Agricultural Sciences

Theology and Religion

Open Distance Learning

Business School

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept