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24 April 2024 | Story Leonie Bolleurs | Photo Supplied
Eco-vehicles race
Join the UFS on 18 May 2024 from 10:00-13:00 at the Red Square Parking area for the seventh annual Kovsie ACT Eco-Vehicle Race. Come and support your favourite team to victory!

Kovsie ACT at the University of the Free State (UFS) proudly presents the seventh Kovsie Eco-Vehicle Race, set to take place at the Equitas Parking area on the Bloemfontein Campus.

According to Karen Scheepers, Assistant Director: Student Life, ten teams will be participating in this year’s race, featuring the three UFS campuses as well as the Central University of Technology. The event promise excitement like never before.

Scheepers says, besides an exciting race, spectators can look forward to a new track and viewing area. She invites the public, staff and students to come and support the competing teams as they showcase their skills on the racetrack.

Event details:

  • Date: Saturday 18 May 2024
  • Time: 10:00-13:00
  • Venue: Red Square Parking area (opposite George du Toit Building)

Breakdown of the programme:

09:00 -10:15 Performance by student artists 
10:15 -10:35 Walkthrough by judges
10:35 -10:40 Welcoming
10:40 Races commence
12:30 -13:00 Announcement of winners

13:00 -14:00 Performance by student artists

The Eco-Vehicle Race marks the culmination of a nine-month co-curricular skills programme, aimed at empowering participating students with a set of skills for the world of work. Through this programme, they are equipped with basic knowledge and abilities on sustainable energy, enabling them not only to compete in the eco-vehicle race but also to comprehend the inner workings of the vehicle. This understanding is important to the teams for when they are doing repairs during the race.

Students will be competing in three events:

• Obstacle course: Teams will be challenged by obstacles to test their control over the car.
• Smart lap: A timed lap in which the drivers take the main track for the first time.

• Endurance race: The teams need to finish as many laps as possible using the least amount of energy in 45 minutes.

The winners of the three events will each be awarded a trophy. Additionally, there will be a trophy for the best pit stop as well as a spirit cup for the team with the best energy and support from the audience.

For more information, contact Teddy Sibiya.

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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