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03 January 2023
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Photo Evert Kleynhans
Dr Dolf van Niekerk.
The University of the Free State (UFS) would like to express its condolences to the family and friends of South African author, Dr Dolf van Niekerk, on his passing.
Dr Van Niekerk, the recipient of an
honorary doctorate from the UFS, passed away on 31 December 2022. The UFS awarded a Doctor of Letters to Dr Dolf van Niekerk during its April 2021 graduation ceremony.
Dr Van Niekerk was a celebrated author who also achieved fame as a dramatist and radio presenter. An alumnus of the UFS, he received a BA degree from the university cum laude in 1949. He also played a role in academia and was an emeritus professor at the University of Pretoria until his retirement in 1994. His work includes 27 books in philosophy, poetry, fiction, drama, and memoirs, for which he has received numerous awards. These include the
Eugene Marais Prize, the MER Prize, and the Scheepers Award for Youth Literature.
“Dr van Niekerk is a Kovsie alumnus with a deep connection to the Free State. He played a significant role in the country’s literary history, and it was an honour for the university to award him with an honorary degree. A wordsmith of note, Dr van Niekerk’s contributions to South African literature, radio, and stage will live on," says
Prof Francis Petersen, Rector and Vice-Chancellor.
Researcher works on finding practical solutions to plant diseases for farmers
2017-10-03
Lisa Ann Rothman, researcher in the Department of
Plant Sciences.
Photo: Supplied
Plant disease epidemics have wreaked havoc for many centuries. Notable examples are the devastating Great Famine in Ireland and the Witches of Salem.
Plant diseases form, due to a reaction to suitable environments, when a susceptible host and viable disease causal organism are present. If the interactions between these three factors are monitored over space and time the outcome has the ability to form a “simplification of reality”. This is more formally known as a plant disease model. Lisa Ann Rothman, a researcher in the Department of Plant Sciences at the University of the Free State (UFS) participated in the Three Minute Thesis competition in which she presented on Using mathematical models to predict plant disease.
Forecast models provide promise fighting plant diseases
The aim of Lisa’s study is to identify weather and other driving variables that interact with critical host growth stages and pathogens to favour disease incidence and severity, for future development of risk forecasting models. Lisa used the disease, sorghum grain mold, caused by colonisation of Fusarium graminearum, and concomitant mycotoxin production to illustrate the modelling process.
She said: “Internationally, forecasting models for many plant diseases exist and are applied commercially for important agricultural crops. The application of these models in a South African context has been limited, but provides promise for effective disease intervention technologies.
Contributing to the betterment of society
“My BSc Agric (Plant Pathology) undergraduate degree was completed in combination with Agrometeorology, agricultural weather science. I knew that I wanted to combine my love for weather science with my primary interest, Plant Pathology.
“My research is built on the statement of Lord Kelvin: ‘To measure is to know and if you cannot measure it, you cannot improve it’. Measuring the changes in plant disease epidemics allows for these models to be developed and ultimately provide practical solutions for our farmers. Plant disease prediction models have the potential ability to reduce the risk for famers, allowing the timing of fungicide applications to be optimised, thus protecting their yields and ultimately their livelihoods. I am continuing my studies in agriculture in the hope of contributing to the betterment of society.”