Latest News Archive

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

Researchers urged to re-emphasise regeneration of grassroots
2013-10-23

23 October 2013

Institutions of higher learning have a critical role to play in the promotion and protection of indigenous knowledge systems. This is according to Dr Mogomme Masoga, UFS alumnus and Senior Researcher with the Development Bank of Southern Africa (DBSA).

Dr Masoga was addressing the 6th annual Indigenous Knowledge Systems (IKS) Symposium at the University of the Free State’s Qwaqwa Campus.

“The time has come for local communities rich with knowledge to be taken seriously by the researchers doing their work in those respective communities,” argued Dr Masoga.

“Power relations between the researcher and the communities involved in the research process should be clarified. The same applies to the ownership and control of knowledge generated and documented in a community.

“There is an increasing need for democratic and participatory development in our communities. This can be achieved by giving primacy to the interests, values and aspirations of the people at large. There must be a radical move from prevailing paradigm of development that suffers from relying on coercion and authoritarianism. There is a need to associate development with social needs. This will give validity and integrity to the local communities, thereby giving confidence to the leaders and their constituencies.”

Dr Masoga said that the time has come for African universities in particular to “de-emphasise factors that monopolise attention today. Factors like debt crisis, commodity prices and foreign investment, among others, must be replaced by emphasis on the regeneration of the grassroots. Many African universities and research institutions have not lived up to their responsibilities as guiding lights to the continent. However, all is not lost.

“The current global race for knowledge works against so-called developing countries, especially in Africa. There is a far greater need to have a code of ethics drawn up for researchers engaging with local communities, to ensure the promotion and protection of indigenous knowledge systems.”

Meanwhile, a cross-section of papers were also delivered during the symposium. These ranged from Moshoeshoe’s lessons in dealing with poverty alleviation as presented by Dr Samuel Mensah, Department of Economics, to indigenous grasses of Qwaqwa by Prof Rodney Moffett, Department of Plant Sciences. Also presenting lectures were Phephani Gumbi, African Languages; Tshele Moloi, School of Mathematics; Natural Sciences and Technology Education and Dr Tom Ashafa (Plant Sciences).

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