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23 October 2019 | Story Rulanzen Martin | Photo Rulanzen Martin
Prof Angelique van Niekerk, Prof Jaap Steyn, Prof Hennie van Coller and Prof Bernard Odendaal
From the left: Prof Angelique van Niekerk, Prof Jaap Steyn, Prof Hennie van Coller, research fellow and former HOD of Afrikaans and Dutch; German and French and Prof Bernard Odendaal, from the ATKV School for Creative Writing at North West University,after the book launch on 16 October 2019.

The very comprehensive publication, JC Steyn en Afrikaans – ’n viering, pays tribute to a leading figure of the Afrikaans academic world. The book, edited by Profs Angelique van Niekerk, Hennie van Coller, and Bernard Odendaal, was recently launched at the University of the Free State (UFS) as a tribute to Prof Jaap Steyn, research fellow and former colleague at the UFS.

“The publication contains diverse contributions and provides a comprehensive overview of the different types of research in Afrikaans literature and linguistics,” said Prof van Niekerk, Head of the Department of Afrikaans and Dutch, German and French at the UFS. 

The scope of the contributions is as wide as the influence Prof Steyn has had on the Afrikaans language landscape. “Creative writing and biographies lexicography and sociolinguistics are addressed in his book,” Prof van Niekerk said.

As mentioned in the title, the publication serves as a celebration of Afrikaans as a language and discipline; it also covers the research areas in which Prof Steyn used to publish research himself.

The book, published by SUN MeDIA, was made possible by a financial donation from the South African Academy for Science and Art. It was officially launched at the UFS on Wednesday 16 October 2019. 

More about Prof Steyn 

Prof Steyn is a seasoned poet, writer, and one of the leading Afrikaans academics in the country. With more than 100 articles in scientific journals to his name, Prof Steyn is still serving as research fellow in the UFS Department of Afrikaans and Dutch, German and French. He is also the author of, among others, books on language politics, language, and cultural history, such as Tuiste in eie taal, Trouwe Afrikaners: Aspekte van Afrikanernasionalisme en Suid-Afrikaanse taalpolitiek and the recent Ons gaan ’n taal maak. He has also written a number of award-winning biographies and published prose and poetry. 

Prof Steyn has been associated with several South African universities, including the University of Johannesburg (the then Rand Afrikaans Universiteit), Nelson Mandela University (the then University of Port Elizabeth), as well as the UFS.

News Archive

Sunflowers are satellite dishes for sunshine, or are they?
2016-07-20

Eighty-six percent of South Africa’s
sunflowers are produced in the
Free State and North West provinces.

Helen Mirren, the English actress, said “the sunflower is like a satellite dish for sunshine”. However, researchers at the University of the Free State (UFS) have found that too much of this sunshine could have a negative effect on the growth of sunflowers, which are a major source of oil in South Africa.

According to Dr Gert Ceronio from the Department of Soil, Crop, and Climate Sciences at the UFS, extremely high soil temperatures play a definite role in the sprouting of sunflower seedlings. Together with Lize Henning, professional officer in the department, and Dr André Nel from the Agricultural Research Council, he is doing research on biotic and abiotic factors that could have an impact on sunflowers.

Description: Sonneblom 2 Tags: Sonneblom 2

Various degrees of deformity (bad-left
to none-right) in seedlings of the same
cultivar at very high soil temperatures.
Photo: Dr Gert Ceronio

Impact of high temperatures on sunflower production

The Free State and North West provinces, which produce 86% of South Africa’s sunflowers, are afflicted especially by high summer temperatures that lead to extremely high soil temperatures.

Dr Ceronio says: “Although sunflower seeds are able to germinate at temperatures from as low as 4°C to as high as 41°C, soil temperatures of 35°C and higher could have a negative effect on the vegetative faculty of sunflower seedlings, and could have an adverse effect on the percentage of sunflowers that germinate. From the end of November until mid-January, this is a common phenomenon in the sandy soil of the Free State and North West provinces. Soil temperatures can easily exceed the critical temperature of 43°C, which can lead to poor germination and even the replanting of sunflowers.”

Since temperature have a huge impact not only on the germination of sunflower seeds, but also on the vegetative faculty and sprouting of sunflower seedlings, Dr Ceronio suggests that sunflowers should be planted in soil with soil temperatures of 22 to 30°C. Planting is usually done in October and early November. Unfortunately, this is not always possible, as soil moisture is not optimal for growth. Farmers are then compelled to plant sunflowers later.

Impact of herbicides on sunflower growth

“High soil temperatures, combined with the herbicide sensitivity of some cultivars, could lead to the poor development of seedlings," says Dr Ceronio.

The use of herbicides, such as ALACHLOR, for the control of weeds in sunflowers is common practice in sunflower production. It has already been determined that ALACHLOR could still have a damaging effect on the seedlings of some cultivars during germination and sprouting, even at recommended application dosages.

“The purpose of the continued research is to establish the sensitivity of sunflower cultivars to ALACHLOR when exposed to high soil temperatures,” says Dr Ceronio.

 

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