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02 January 2025
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Story Gerda-Marie van Rooyen
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Photo Supplied
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.
Valuable advice for businesses in difficult times
2013-04-15
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Prof Helena van Zyl, Director of the Business School, and Dr Reuel Khoza.
Photo: Stephen Collett
15 April 2013 |
Dr Reuel Khoza, Chairman of the Nedbank Group, shared the group’s valuable rules for managing a bank in difficult times in an MBA lecture on the Bloemfontein Campus. Dr Khoza is a visiting professor at the UFS Business School.
He focused in the lecture on the group’s business and leadership model and highlighted some do’s and don’ts:
- Do not surprise your stakeholders on the downside – communicate transparently, particularly when there is bad news.
- Retrenching staff to contain costs should be a last resort – the damage to corporate culture from retrenchments is immense. Follow and support your customers – get as close to them as possible because business changes slowly, but customer behaviour can change in an instant.
- Integrated central capital and funding management.
- Entrench well-established reporting, KPIs and measurement systems.
- Ensure strong independent risk management.
- Manage your cost base – anticipate downturns and re-base your costs to avoid crisis-cost management.
- Take advantage of opportunities – an economic downturn creates a situation where valuations fall and assets are sold off, which can be a great opportunity for acquisitions.
- Keep innovating – innovation does not have to be a costly exercise, as the right culture can promote and encourage experimentation and collaboration.
- Whatever you do – avoid a price war, as expedient pricing decisions may hurt the business in the longer term.