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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 gets more than R3 Million for HIV/Aids activities
2007-12-13
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In the picture are some of the members of the project team. From the left are: Mr Pieter du Plessis (Finances), Ms Estelle Heideman (HIV/Aids Co-ordinator: Lengau Agri Development Centre) and Rev Jaftha.
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UFS gets more than R3 Million for HIV/Aids activities
The Chief Directorate: Community Service at the University of the Free State (UFS) has received more than R3 million to intensify activities regarding HIV/AIDS at all UFS campuses for the next seventeen months.
Higher Education HIV/AIDS Programme (HEAIDS) contributed R3 127 207 and the UFS R615 116 towards this initiative. The money will be used to implement intervention strategies from 1 January 2008 to 31 May 2009.
“The mandate poses an extensive challenge and puts pressure on the institution, but at the same time creates some incredible opportunities for intervention,” said the Chief Director of Community Service and Project Co-ordinator, Rev. Kiepie Jaftha.
HEAIDS is a nationally co-ordinated initiative to develop and strengthen the capacity of South African higher education institutions to respond to the causes, challenges and consequences of the HIV/AIDS pandemic in the sector. It is an initiative of the Department of Education and the implementing agency is Higher Education South Africa (HESA), an organisation representing vice-chancellors of tertiary institutions in South Africa.
The proposed areas and actions of intervention are categorised into three main components, namely:
- Prevention, treatment, care and support aimed at both students and staff on all UFS campuses.
Incorporation of HIV/AIDS issues into the teaching offerings of the UFS and the development of a formal policy in this regard.
- Implementation of an integrated management information system to empower stakeholders to make decisions and adapt actions by visualising facts, actions and progress on the overall HIV/AIDS programme.
The UFS met all the requirements of HEAIDS to qualify for this funding. A five-member team was formed to come up with a document entitled The Quest for an AIDS Competent Society that met the required standards.
“Each institution of higher learning had to identify and establish a project team, appoint a project leader, assign responsibilities to members of the team with different expertise, analyse the needs of the institution, and define and agree on projects in order to access the grant,” said Rev. Jaftha.
Media Release
Issued by: Mangaliso Radebe
Assistant Director: Media Liaison
Tel: 051 401 2828
Cell: 078 460 3320
E-mail: radebemt.stg@ufs.ac.za
13 December 2007
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