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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

Researcher in mathematics ranks among world’s top peer reviewers

2016-10-07

Description: Abdon Peer Review Tags: Abdon Peer Review

Prof Abdon Atangana, from the UFS Institute
for Groundwater Studies.
Photo: Johan Roux

Thirty-year-old Prof Abdon Atangana has received the prestigious Sentinels of Science Award 2016. This award honours the highest achievers in peer review across the world’s journals. The elite contributors to scholarly peer review and editorial pursuits internationally are also honoured with this award. Recipients have demonstrated an outstanding, expert commitment to protecting the integrity and accuracy of published research in their field.

Prof Atangana, who ranks number one in the mathematics discipline with a merit of 324, is a professor at the Institute for Groundwater Studies at the University of the Free State (UFS).

He is editor of 17 international journals, editor-in-chief of two international journals and also reviewer of more than 200 international accredited journals. He has been lead and guest editor of some special issues. He is also editor of 19 journals of applied mathematics and mathematics and has presented and participated in more than 20 international conferences.

Prof Atangana’s research interests are methods and applications of partial and ordinary differential equations, fractional differential equations, perturbations methods, asymptotic methods, iterative methods, and groundwater modelling.

“Editors in more than 100 journals
trust my opinion to assess
whether a submitted paper
can be published or not.”

Peer review requires a respected expert in a given field

According to the professor, reviewers play a central role in scholarly publishing. “In the academic field, peer review is the process of subjecting an author’s scholarly work, research, or ideas to the scrutiny of others who are experts in the same field, before a paper describing this work is published in a journal or as a book. The peer review process helps the publisher to decide whether the work should be accepted, considered acceptable with revisions, or rejected.

“Peer review requires a respected expert in a given field, who is qualified and able to perform the review in a given timeframe. Due to the impact of my research papers in the field of mathematics and applied mathematics, and also my international recognition in the field of applied mathematics, many editors in more than 100 journals of applied mathematics trust my opinion to assess whether a submitted paper in a given journal of mathematics and applied mathematics can be published or not. Only this year I was able to review more than 100 papers from different journals of applied mathematics, applied physics, mathematics, engineering and hydrology,” he said.

A successful peer reviewer displays passion for the development of science

Key to his success as peer reviewer is his passion for the development of science, his ability to write fair reports about a given manuscript, as well as his knowledge on what has been done and what are the challenges in a given field to be able to give a report that will help the advancement of science.

Currently he is developing new mathematics tools that will be used to accurately model statistical problems as well as physical problems with many layers.

“To be the number one peer reviewer in the world in mathematics is a product of love, patience and determination to enhance science,” Prof Atangana said.

His advice to young researchers is to put their trust in God and to work hard. “Not necessarily for money but for love because the future of Africa is in the hands of young Africans,” he said.

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