Latest News Archive

Please select Category, Year, and then Month to display items
Categories
UFS News Media Release Research
Years
2017 2018 2019 2020 2021 2022 2023 2024
Months
January February March April May June July August September October November December
Previous Archive
18 April 2019 | Story Xolisa Mnukwa
Geben van Niekerk
Gerben van Niekerk was recognized as a Bright Star at this year's Liberty Radio Awards.
In 2019, Kovsie FM was recognised by the Liberty Radio Awards as one of the radio stations that secures the future of the radio industry by employing excellence and motivating the consistent raising of standards. 

The Liberty Radio Awards is a transparent awards programme that promotes and highlights excellence by recognising and honouring South Africa’s outstanding radio talent, from in-front-of-the mic presenters to behind-the-scenes producers. The awards have the objective of ensuring that radio remains one of the country’s leading media choices.

The station was nominated in categories including the Best Community Project for the Kovsie FM Cool Kid takeover initiative, and the 2019 Bright Star award, of which University of the Free State (UFS) Student Media Manager and OFM Before Dawn radio presenter, Gerben van Niekerk, was inaugurated as one of the 2019 Liberty Radio Awards Bright Stars. 

Thabang Moselane, UFS alumnus, former OFM radio anchor on A Touch of Thabang, social-media manager for online publication, The Journalist, and freelance researcher, writer, and director for a Johannesburg-based film production company, was also recognised and inducted as a Bright Star at the 2019 Liberty Radio Awards.

2019 Liberty Radio Awards’ Bright Star winner, Van Niekerk, explained that the essence of his job at Kovsie FM is to ensure that the student talent that is produced and groomed in their studios daily, morphs into an array of folk who possess the unquestionable skill and aptitude that is widely sought in commercial South African radio.

A great testimony of Van Niekerk’s mission for Kovsie FM, is former Kovsie FM presenter, Smash Afrika, who has moved on to hosting Live at Night on 5FM, and co-presenting Massive Music on Channel O, and Mzansi Magic with Lalla Hirayama. Former station programme manager, Sam Ludidi, is another gem that was cultivated through Kovsie FM, and now works as rugby presenter on SuperSport TV, and also forms part of the OFM team. 

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.

 

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept