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 September 2018
Soccer ladies relish challenge in Potch
Trinity Melakeco (right) in action for the Kovsie women’s soccer team against the Tshwane University of Technology (TUT) last year. They will face TUT, the defending champions, on Friday 21 September in Varsity Women’s Football.
The Kovsie women’s soccer team has a tough challenge ahead of them in their quest to reach the semi-finals of Varsity Women’s Football for the first time.

The tournament starts on Thursday 20 September 2018 in Potchefstroom. The Kovsies’ best performance in the competition was in 2016, when they were fifth.

They are in the same group as the University of Johannesburg (UJ), the University of KwaZulu-Natal (UKZN), and Tshwane University of Technology (TUT). TUT has dominated Varsity Women's Football, winning four of the five tournaments. TUT and UJ contested the final last year, as well as the University Sport South Africa (USSA) tournament in July.

Kovsie coach, Godfrey Tenoff, says the challenge of playing the top-seeds is one they relish and welcome.

According to him, the ladies will have gained confidence from USSA where they ended sixth, improving by two places from 2017.

“We were satisfied with our performance at USSA. There are so much the players are capable of, but they don’t get the platform to test their talents as often as the men. We only play UJ and TUT once or twice a year, and there are very few teams in our province with that much talent. So, we have to get out more and find opportunities to play against top-teams to put our preparations and methods to the test.”

“We’ve had a good defence all season, led by our captain, Uma Jakalase. This will have to get us through the tournament.”

* The fixtures: 20 Sept vs UKZN; 21 Sept vs. TUT and UJ. The play-off matches are scheduled for Saturday.

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