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24 May 2021 | Story Xolisa Mnukwa
The 2021 Kovsie ACT Eco-vehicle race puts students’ sustainable energy and critical thinking skills to the test.
The University of the Free State (UFS) Division of Student Affairs’ (DSA) Director of Student Life, Dr WP Wahl, believes the knowledge and skills that students have gained through participating in the 2021 Eco-vehicle project will position them more optimally in the future world of work. “We are also tremendously grateful for the project funding received from merSETA; without their support, none of this would have been possible,” he remarked.

The Kovsie ACT Eco-vehicle race, in conjunction with the overall programme, was established to encourage students to learn more about the technology and logic behind sustainable energy sources and how this can influence the future global society.

This year’s events witnessed students competing according to their UFS residence teams, with Sonnedou, Legatum, Kestell (SonLeTell); Soetdoring, Beyers Naude, Arista (Soetbeyrista); and Roosmaryn, Kagiso, Karee (Kar-is-myn) ending in first, second, and third place respectively, obtaining the highest scores for the races they competed in.

Anton Calitz, Electrical Engineer in University Estates who was the announcer on the day, described the event as one that exceeded his wildest expectations. “From a sustainable energy point of view, the eco-vehicle race results really turned the tables, with lower energy usage per lap being successfully recorded – as anticipated,” he further added.

Andre van Wyk, Client Liaison Officer of merSETA (Manufacturing, Engineering and Related Services Seta) for the Free State and Northern Cape – as one of the sponsors of the innovative programme – extended warm congratulations to the UFS for hosting an outstanding event. He further applauded the university for its resourcefulness in virtually adding electronic media broadcasts to extend the event to the entire UFS community.

“The Kovsie ACT Eco-vehicle programme was eye-opening and exposed me to the broad field of electronics. It definitely came as a challenge – one I had not anticipated on that level, because at times I couldn’t even see what all the building was leading to, but I just had to put my mind and hands to work – it pushed me to think critically and creatively. I was honoured to have been part of this entire experience and I’m grateful to Anton and his team, as well as the Kovsie ACT office, for being a constant support structure throughout the process, as it was not easy.” 

These were the humble words of Sinegugu Sibisi, a University of the Free State (UFS) student who was part of the 2021 Kovsie ACT Eco-vehicle race, where sustainable energy was at the order of the day.

For more information about the Kovsie ACT eco-vehicle skills programme, email ACT at ACT@ufs.ac.za
 

 

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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