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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.
UFS students win Innovation prize
2007-11-05
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From the left are, front: Kasey Kakoma (member of the winning team) and Ji-Yun Lee (member of the winning team); back: Prof. Herman van Schalkwyk (Dean of the Faculty of Natural and Agricultural Sciences at the UFS), Lehlohonolo Mathengtheng (member of the winning team) and Prof. Gerrit van Wyk (consultant from Technology Transfer Projects who arranged the first phase of the competition).
Photo (Leonie Bolleurs):
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UFS students win Innovation prize
Prizes to the value of R100 000 were recently handed to students in the Faculty of Natural and Agricultural Sciences at the University of the Free State (UFS) during a prize winners function of the National Innovation Competition.
“The competition is sponsored by the Innovation Fund, which was established by the national Department of Science and Technology and is managed by the National Research Foundation (NRF). The competition seeks to develop innovation and entrepreneurship amongst students in higher education institutions,” said Prof. Teuns Verschoor, Vice-Rector of Academic Operations at the UFS.
Most universities in South Africa take part in the competition. “The first phase of the competition is per university where students can win prize money to the value of R100 000. The three winners then compete in the national competition, where prize money to the value of R600 000 can be won,” said Prof. Verschoor.
Eight teams from the Faculty of Natural and Agricultural Sciences competed in the local competition. The teams had to submit a business plan, which was judged by six external adjudicators.
The winning team from the Department of Microbial, Biochemical and Food Biotechnology submitted their business plan with the title: “Using bacteriophages to combat specific bacterial infections in poultry". The team, consisting of Kasey Kakoma from Zambia, Lehlohonolo Mathengtheng from South Africa, and Ji-Yun Lee from South Korea, were awarded R50 000 in cash. All three students are Master’s degree students in Microbiology in the Veterinary Biotechnology Research group at the UFS.
The team who came second was from the Department of Physics with team leader Lisa Coetzee and they received R30 000. The title of their project was “Light of the future”. The third prize of R20 000 went to Lizette Jordaan of the Department of Chemistry with a project entitled: “Development of a viable synthetic route towards a natural substrate with possible application in the industry”.
Prof. Gerrit van Wyk, former dean of the UFS Faculty of Natural and Agricultural Sciences and consultant for Technology Transfer Projects, annually drives this competition.
In his announcement of the winners of the first phase of the 2007 National Innovation Competition, Prof. Herman van Schalkwyk, Dean of the UFS Faculty of Natural and Agricultural Sciences, said innovation and entrepreneurship are important to stimulate and create sustainable economic growth in South Africa. “Through this competition universities get the opportunity to show to South Africa its capabilities in the arena of innovation and commercialisation of ideas,” he said.
To proceed to the second phase of the competition, the business plans of the three finalists from each qualifying higher education institution will be submitted for the national competition. The best three students from each participating institution will exhibit their innovations at the national awards ceremony early in 2008. The top ten entrants and subsequently the best three business plans from the total entries will then be short listed. The prize money won at the national competition has to be used for the commercialisation of the project or the founding of a company.
Media Release
Issued by: Lacea Loader
Assistant Director: Media Liaison
Tel: 051 401 2584
Cell: 083 645 2454
E-mail: loaderl.stg@ufs.ac.za
5 November 2007
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