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02 January 2025
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Story Gerda-Marie van Rooyen
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Photo Supplied
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 is the most integrated campus in the country
2010-01-29
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Judge Ian van der Merwe, Chairperson of the University of the Free State's (UFS) Council and Prof. Jonathan Jansen, Rector and Vice-Chancellor of the UFS at the official opening ceremony.
Photo: Hannes Pieterse |
“The University of the Free State’s (UFS) Main Campus is the most integrated campus in the country.”
This was said by Prof. Jonathan Jansen, Rector and Vice-Chancellor of the UFS during the university’s official opening on its Main Campus in Bloemfontein today.
Addressing staff and students, Prof. Jansen said that the first-year students in the majority of the residences are now fully integrated on a 50/50 basis. “The majority of our house committees are now also integrated,” he said.
He used the ladies residence Welwitschia as an example. “When I walked into to this residence last year it consisted only of black female students. When I visited them again this year I could not believe what I saw: the residence is fully integrated and there are white and black students living together. This is an example of our young people’s willingness to live together and we must believe in their potential,” he said.
Prof. Jansen said that the UFS does not want to be good because “good is the enemy of great” (from Jim Collins in his book Good to Great). “We want to be great. This is the year in which our staff and students’ lives will change and this university will change as we take the first steps in making the leap from good to great,” he said.
Prof. Jansen said that there have been many developments at the UFS so far this year. “We have attracted some of the best scholars in the country and other parts of the world to this university, and we will be selecting from among them in the next two weeks. We have also attracted some of the best athletes in the country in our first-year class, including some of the best hockey players,” he said.
Prof. Jansen outlined the following as his priorities for 2010:
- The phasing in of compulsory class attendance as a way to drastically improve the quality of teaching at the UFS. “This will also enhance our throughput. However, before we can to this, we are going to accelerate the building of larger classrooms to accommodate all our students,” he said.
- The appointment of a senior vice-rector in the near future, who will manage the day to day operations of the UFS;
- To market the UFS to the best and most promising schools in South Africa. “This will start next week when I will be visiting schools in the Eastern Cape.”
- To raise R100 million to enable more students with talent to study at the UFS, and to build an endowment to be proud of for the future of the university;
- To upgrade the infrastructure in the residences;
- To require every member of the university’s academic staff to publish every year;
- To train administrative and support staff so that a world-class service culture can be created which takes every student, every parent and every staff member seriously; and
- To insist that the conditions of service of staff working for agencies outside the UFS be improved by increasing the minimum remuneration dramatically and by making study benefits available to them as well. “We will not renew our tenders with outside agencies unless they raise the minimum wage of their staff,” he said.
Prof. Jansen said that he was extremely proud of the Student Representative Council’s (SRC) leadership and what they have achieved so far during their term. He also thanked the staff for their hard work and the excellence they bring to the UFS.
Media release
Issued by: Lacea Loader
Director: Strategic Communication (actg)
Tel: 051 401 2584
Cell: 083 645 2454
E-mail: loaderl@ufs.ac.za
29 January 2010