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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

Postgraduate School opens at UFS
2011-05-19

 
Prof. Maresi Nerad, from Washington university in Seattle, USA
Photo: Stephen Collett

We are celebrating the launch of our new Postgraduate School (PGS) on our Main Campus in Bloemfontein from 16 - 20 May 2011.

In line with national priorities for research-based postgraduate education and the focus of the UFS Academic Turnaround Strategy, the aims of the Postgraduate School are to:

  • improve the quality of postgraduate student research;
  • produce graduates who are global citizens, research literate and able to reflect ethically on the purpose, process and product of research;
  • improve throughput rates of postgraduate students; and
  • make the experience of being a postgraduate at the UFS one which is stimulating, enjoyable and which contributes to the development of the person beyond the limits of her or his discipline(s).

“We hope that the school will be a pleasant place to pursue research scholarship, discuss ideas and relax, and we look forward to welcoming postgraduates and other scholars to the school,” Prof. Neil Roos, Director of the UFS Postgraduate School said.

This significant event in the academic transformation of the university goes hand in hand with the inaugural lecture of Prof. Maresi Nerad. Prof. Nerad’s impressive CV reads amongst others that she has a M.A. (Political Science) at the Technical University of Darmstadt, Germany and a Ph.D. (Higher Education) at the University of California, Berkeley. She is also the founding director of the national Center for Innovation and Research Graduate Education (CIRGE).

As Professor Extraordinary in the UFS’s Postgraduate School, she is bringing more to the table than a world of wisdom and her passion for the postgraduate education. “I can contribute lessons learned from four distinct professional experiences, including 17 years of administrative and scholarly leadership in undertaking the conceptual and practical transformational work of organisational change at two US postgraduate schools, where I worked amongst others to improve the quality of mentoring, shorten the time to doctoral degree, and improve doctoral completion rates.”

She also brings to the UFS her experience as founding and current director of the first research center for studies on graduate education in the world. “It is our mission to discover how best to prepare Ph.D. students to be effective leaders in research and society,” she said.

Prof. Nerad says that she is committed to support and consult with the UFS Postgraduate School. She would particularly encourage the use of research to understand postgraduate education in all its dimensions at the UFS better and to use the evidence-based findings as a base for policy-making and resource allocation.

In reflecting on her vision for the UFS Postgraduate School, Prof. Nerad says that five years from now she hopes to see the UFS having strengthened its position as a major driving force in the national South African postgraduate-education community for internationalising postgraduate education. She is also confident that the UFS will supply increased numbers of skilled postgraduates who are “intellectual entrepreneurs and risk takers with a social consciousness, who have sustainability of the systems of the planet as a core value”.

“Five years from now the PSG will have taken the lead in preparing graduate students who are world citizens,” Prof. Nerad concluded.

 

Presentation on PhD students reveals more than meets the eye

British professor presents a discussion at UFS

Journey from student to scholar

Society will take care of interests

Female academics talk about joys and lessons

Research plus the internet equals the cyber scholar
 


 

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