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02 January 2025
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Story Gerda-Marie van Rooyen
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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 acts fast in expelling students for serious misconduct
2014-02-22
On the evening of Monday 17 February 2014, Muzi Gwebu, a fifth-year student in BCom Economics, while walking on the Bloemfontein Campus of the UFS, was side-swiped by a vehicle driving recklessly through campus. He followed the vehicle where it stopped at one of the residences and approached the two occupants. A confrontation started and he was assaulted by one of the occupants of the vehicle.
Gwebu sustained minor injuries and was immediately assisted by the university’s residence life division. He lodged a complaint of assault at the South African Police Service (SAPS).
The senior leadership of the UFS is shocked and outraged at this blatant act of violence against one of its students. The Vice-Chancellor and Rector, Prof Jonathan Jansen, says: “We regard this incident in a very serious light and we worked closely with the SAPS throughout the night to identify and locate the perpetrators who were driving with false number plates.”
With the assistance of the student leadership in one of the residences, the owner of the vehicle and his companion were traced this morning.
The two students were immediately handed to SAPS by the university’s Protection Services and were arrested on charges of attempted murder, assault and driving with false number plates.
In addition to the criminal investigation by the SAPS, the university is also conducting an urgent and formal investigation into the incident.
The university has offered Gwebu full counselling and support until he is fully recovered.
“It is sad and disappointing that, after so much progress with the social transformation of the UFS, such a horrific incident could have occurred. It is pleasing, however, that across the board, all our students condemned these vicious acts. The students, if found guilty in the criminal and institutional investigations, will definitely not be allowed to study at the University of the Free State,” he said.
END
Statement by Dr Willy Nel, Residence Head of Armentum men’s residence
The Residence Head, Residence Committee and all residents of Armentum male residence on the Bloemfontein Campus unequivocally distance themselves from any behaviour which does not breathe the letter and spirit of the University of the Free State's vision of Human Embrace and Academic Excellence. We work tirelessly to upend traditions that are contradicting this vision. Therefore we add our voice to those who condemn the incident in which ex-residents allegedly assaulted a pedestrian who is also a student of our institution. We express our support to and confidence in the university's and other processes to find justice in this matter.
Dr Willy Nel
Residence Head: Armentum
Media release
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