Latest News Archive
Please select Category, Year, and then Month to display items
02 January 2025
|
Story Gerda-Marie van Rooyen
|
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.
Suspension of the South African Doping Control Laboratory (SADoCoL) by the World Anti-Doping Agency (WADA)
2016-05-04
The senior leadership of the UFS and the management of the South African Doping Control Laboratory (SADoCoL) take note of the decision by the World Anti-Doping Agency (WADA) to suspend the laboratory’s accreditation to perform doping control analysis on biological samples of athletes and sportsmen and -women until 30 September 2016. During this time of suspension, all sport-related samples will be sent for analysis to the WADA accredited laboratory in Qatar until the accreditation of SADoCoL is re-established. Analysis according to WADA accreditation will therefore not be interrupted during the period of the suspension of the accreditation of SADoCoL.
The announcement by WADA on 3 May 2016 follows a voluntary decision by SADoCoL in March 2016 to temporarily close the laboratory for some of its routine analytical duties for six months, as from 1 April 2016. The decision was taken in consultation with the senior leadership of the UFS and other role players, especially the Department of Sport and Recreation of South Africa (SRSA) and the South African Institute for Drug-Free Sport (SAIDS). SADoCoL is a specialised service laboratory of the University of the Free State (UFS) and has been in existence for more than thirty years.
Due to the ever-increasing demands on the number, variety and analytical sensitivity of compounds to be analysed according to the Prohibited List of WADA, technical and infrastructure adaptations need to be implemented in the laboratory continuously to keep up with the demands. Over the last year, SADoCoL has drastically increased its capacity in both personnel and infrastructure, to a point where these changes can be implemented for optimal performance of the laboratory. This has to be done while normal routine analysis continues, and it became clear that at present, implementation cannot be successfully accomplished together with the workload from normal routine analyses.
The time of suspension will be utilised to implement and test these new systems in order to achieve the standard presently required by WADA, as well as to perform development and improvements. This development will be performed in close collaboration with other role players in the anti-doping movement in South Africa, such as SAIDS and SRSA. Scientific development aid will also be acquired from other doping control laboratories worldwide in order to assure that the high analytical quality is maintained and expanded to meet the fast growing challenges in this field. The progress of the process will be closely monitored, and the upgraded methodologies will then, after rigorous testing, be implemented to ensure that the required analytical quality is maintained so as to obtain re-accreditation by WADA at the conclusion of the suspension period.
Issued by: Lacea Loader (Director: Communication and Brand Management)
Telephone: +27(0)51 401 2584 or +27 (0) 83 645 2454
E-mail: news@ufs.ac.za
Fax: +27 (0) 51 444 6393