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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

National Human Trafficking Resource Line a victim-centred approach to combating crime

2017-08-24

Prof Beatri Kruger, Adjunct Professor at the
UFS Faculty of Law. Photo: Supplied

As a response to the rising number of human trafficking cases in South Africa and around the world, key role players in various fields have pulled together to come up with workable solutions on how to stop the crime and assist victims. Some of the work being done by NGOs and law enforcement agencies has been supported by insights from research conducted in communities and by academic institutions. According to Prof Beatri Kruger, Adjunct Professor of Law in the Faculty of Law at the University of the Free State and experienced researcher in human trafficking, support for victims has grown in leaps and bounds with the help of the latest technology. More and better quality information can be collected to strengthen efforts of combating the crime,” she said.

One such technological development is the national Human Trafficking Resource Line, which provides various services, including information on trafficking activities, assistance to agencies working with victims of trafficking in persons (TIP), creating a network from which data can be collected, analysed, and activities tracked, in order to ensure the best service to victims.

The resource line connects callers, often victims of TIP or anonymous tippers, to service providers in social services, law enforcement, places of safety, medical facilities, and government agencies, especially during emergencies.

Resource line a helping hand to victims
The resource line was established in 2016 and has replaced the previous helpline. This line provides more services and resources than just a helpline. Through partnerships, it works to strengthen local and national structures that can assist victims over the phone.

Call specialists are trained by Polaris, an American company using international standards and protocols. The call specialists are available 24/7 to take reports of human trafficking confidentially and anonymously. They put victims in touch with service providers for health screening, counselling, and repatriation if they are from another country, and also assist with case management.

Empowering service providers is the key to success
Support for service providers such as NGOs, safe houses, and government departments in the network is in the form of skills training programmes for staff, and a referral system in various provinces around the country. There are good referral partners in each province, as well as provincial coordinators ensuring accountability regarding cases, mobilising services for victims, and coordinating the referrals and response.

To strengthen the network further, services provided in each province are being standardised to ensure that the right people are contacted when handling cases, and that key stakeholders in each province are used. The strength of the provincial provider network is key to offering victims of human trafficking the services they need.

Human trafficking is a crime that permeates multiple academic disciplines and professions. Therefore, information collected from victims through such a helpline and collated by agencies, will assist academic institutions such as the UFS in furthering their research, while strengthening the content of academic programmes in fields such as law, law enforcement, social sciences, health sciences, and international relations.

The number to call for reporting or providing tips on TIP-related crimes and activities, is 0800 222 777.

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