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02 January 2025 | Story Gerda-Marie van Rooyen | Photo Supplied
Prof Linus Franke
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.

News Archive

Triumph in the face of adversity
2016-04-29

Description: Glory NSH Tags: Glory NSH

Glory, one of fourteen NSH bursary recipients during the UFS Autumn Graduations.

At the University of the Free State (UFS) Autumn Graduation Ceremony held from 12-15 April 2016, on the Bloemfontein Campus, a record number of fourteen beneficiaries of the No Student Hungry (NSH) Bursary Programme received their degrees. This is an achievement they all feel they could not have reached, were it not for the support by NSH.

The NSH food bursary is awarded to students on the basis of financial need, academic excellence, and a commitment to serve the community. The UFS has helped over 650 students since 2011, when Prof Jonathan Jansen, Vice-Chancellor and Rector, started NSH.

These students are true beacons of inspiration and determination. Indeed, they have triumphed in the face of adversity. This is what can be said about their determination and will to succeed.

Glory, a previous recipient of the NSH bursary and a mother of two, graduated on Tuesday morning, receiving a BEd degree (intermediate phase). She stated that the NSH bursary changed her life drastically when she started receiving it.

“I used to constantly worry about my children and what they would eat. So I would sacrifice my own meals throughout the day just to make sure they have food to eat,” says Glory.

“The NSH bursary really gave me peace of mind, my school work was suffering and once I started receiving food each day, I could focus on what really mattered: my degree.”

“My goals for this year are to get a permanent job, and start receiving a stable salary. I am currently working as a temporary teacher at a primary school in Bloemfontein.

Description: Katlego NSH Tags: Katlego NSH

Katlego, one of fourteen NSH bursary recipients during the UFS Autumn Graduations.

“I never would have thought that I could have made it this far. I want to pursue my postgraduate studies, to inspire my children and other students who have been in my shoes. There is help and hope. My faith also gave me refuge. Nothing that is given to me is taken for granted,” says Glory.

Another student Katlego, who graduated on 14 April 2016, receiving her BCom Human Resource Management degree. At present, she is busy with her BCom Industrial Psychology Honours. She heard about the NSH food bursary, through a friend in 2014, and has been immensely grateful for all she has received. 

“There is no shame in asking for help. There can only be hope and relief,” she said.

“I am so thankful for NSH. As part of the bursary programme, we commit to serving the community. We receive but we are also encouraged to give back. The community service projects have helped me to get out of my comfort zone, to look beyond myself and acknowledge that I am also required to give back my time to others who appreciate and cherish it.”   

The NSH students are offered not only a food bursary; they participate in student wellness and development programmes, and they are motivated and exposed to opportunities for personal growth. Students are also encouraged to be involved in university or community projects as a way of ploughing back into the community, thus creating a reciprocal cycle of giving and receiving within their community.

 

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