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The holy grail of potatoes

02 January 2025 | Story Gerda-Marie van Rooyen | Photo Supplied

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

Regional Conference on Trafficking in Human Beings

2007-06-29

Trafficking in Human Beings:
National and International Perspectives

Date: 17th August 2007
Address: CR Swart Auditorium, University of the Free State, Bloemfontein, South Africa.

Every year thousands of children and adults become victims of trafficking and abuse in South Africa and throughout the southern African region. Victims are trafficked for a myriad of reasons: sexual exploitation, including prostitution and pornography; illegal labour, including child conscription; domestic servitude; illegal adoptions; body parts/organs; and forced marriages.

The Unit for Children’s Rights, Department of Criminal and Medical Law, University of the Free State (UFS), together with the Centre for Continuing Legal Education at UFS, will host a Regional Conference on Trafficking in Human Beings. The conference will bring together key role-players from the South African government as well as crucial international non-governmental organizations (NGOs) in the region.

Trafficking in human beings, especially women and children, is a serious violation of the human rights of the victims, as well as an extremely profitable source of income to organized crime, and needs the attention and intervention of both governmental and non-governmental institutions in South Africa.

Speakers will include representatives from the United National Office on Drugs and Crime (UNODC), the International Organization for Migration (IOM), the National Prosecuting Authority (NPA), the South African Law Reform Commission, the Unit for Children’s Rights-UFS, and NGOs Molo Songololo and Terre Des Homes, that work with child trafficking victims in South Africa and around the world.

The media are invited to report on the conference, and interview speakers and presenters Attached find programme. For more info contact the following persons.

1. Beatri Kruger - 051 401 2108 / email: krugerh.rd@mail.ufs.ac.za
2. Susan Kreston - 051 401 9562 / email: krestons.rd@mail.ufs.ac.za
3. Elizabeth Snyman – 051 401 2268 / email: snymane.rd@mail.ufs.ac.za

Programme

Trafficking in human beings:
National & international perspectives

Presented by The Unit for Children’s Rights, Department Of Criminal & Medical Law , Faculty of Law, in Conjunction with The Centre for Continuing Legal Education, University of the Free State.

Funded through the Generosity of the United States Department of State

17 AUGUST, 2007 – CR SWART AUDITORIAM

8:00-8:30 Registration & Tea
8:30-8:45 Opening & Welcome
Prof. JJ Henning, Faculty of Law
8:45-9:40 Overview & Global Perspective
Prof. Susan Kreston - Unit for Children’s Rights, Faculty of Law-UFS

9:40-10:00 TEA

10:00-10:45 International Perspectives & the Role of Organized Crime in Trafficking
Wiesje Zikkenheiner, Associate Expert
United Nations Office on Drugs & Crime, Pretoria
10:45-11:45 Identifying and Assisting Victims of Trafficking
Marija Nikolovska, Project Officer
International Organization for Migration, Pretoria

11:45-12:30 LUNCH

12:30-1:15 Prosecuting Trafficking Without Trafficking Laws
Adv. Nolwandle Qaba, Sexual Offences & Community Affairs Unit
National Prosecuting Authority, Pretoria
1:15-2:15 Recommendations for New Legislation in South Africa
Lowesa Stuurman - South African Law Reform Commission, Pretoria

2:15-2:30 TEA

2:30-2:50 The Role of Terre Des Homes in Fighting Trafficking in Children
Judith Mthombeni– Terre Des Homes, Pretoria
2:50-3:50 Trafficking in Children in South Africa – A Front Line Perspective
Patrick Solomon - Molo Songololo, Cape Town
3:50-4:00 Closing Remarks
Adv. Beatri Kruger
Department of Criminal & Medical Law - UFS

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