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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

Dr Karen Lazenby appointed as Registrar: Systems and Administration
2015-11-11


Dr Karen Lazenby, Registrar: Systems and Administration

Dr Karen Lazenby, former Director: Client Service Centre at the University of Pretoria (UP), was appointed as Registrar: Systems and Administration at the University of the Free State (UFS) as from 1 November 2015. She will be responsible for student enrolment, administration and services, and International Affairs.

“We are extremely fortunate to have a person of the calibre and experience of Dr Lazenby to join the senior team to help us create a 21st century student-centred management system using the best technologies available. She is without question the leader in her field, and the UFS is delighted to have her as part of the Kovsie community,” says Prof Jonathan Jansen, Vice-Chancellor and Rector of the UFS.

Educational background

Dr Lazenby completed the BA (1992) and Honours (1993) degrees in English (cum laude) at the University of Potchefstroom before pursuing a Diploma in Tertiary Education (1996) and a Master's Degree in Computer Integrated Education (1998) at the University of Pretoria. She obtained a PhD in Education in 2003 on the topic ‘Technology and educational innovation: A case study of the virtual campus of the University of Pretoria’ and an Executive MBA from the University of Cape Town in 2006.

A track record to reckon with


Dr Lazenby started her career in higher education as a lecturer in Communication at the VaalTriangle Technikon in 1994, and was appointed as Head of Academic Staff Development the following year.  A year later, she joined Technikon SA as instructional designer at the Centre for Courseware Design and Development, and in 1997 she was appointed as Manager of Institutional Research. She was subsequently seconded to establish TSA Online and coordinate institutional technology. Dr Lazenby was appointed as a project manager at the department of Education Innovation at the University of Pretoria in 1998 where she implemented WebCT/Blackboard, online applications and payments, and student and lecturer portals (virtual campus). In 2000 she was appointed as Deputy Director: Electronic Education.

She was seconded by the UP Executive to establish the Client Service Centre in 2001 to provide integrated, efficient and effective services to students and other clients of the University. During her time as Director: Client Service Centre, she was inter alia, responsible for information and data governance, the intranet, website and call centre of the university, student recruitment, publications, application for study support, study finance, postgraduate scholarships, student accounts, payments, residence placement, access cards and parking, the graduate career office, and international student division. In 2005, she also acted as Director: Corporate Communication and Marketing.

Her vision for the UFS

“I would like to get the university's student administration to such a point that academic staff can focus on teaching and research. Streamlining the enrolment process so that we may see the necessary yield required in terms of our growth target as a university, is my other goal.” She added that capitalising on the strong international positioning of the UFS achieved by Prof Jansen, is a mission she intends to carry out. "I am grateful for the opportunity to work with Prof Jansen and the senior management team and am delighted to be part of the Kovsie community."

Dr Lazenby has published several articles and presented nineteen papers at international conferences.


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