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12 April 2019 | Story Leonie Bolleurs | Photo Johan Roux
Francois de Beer
Francois de Beer, who achieved distinctions in all his subjects and is currently pursuing postgraduate studies in Chemistry.

The post-school life of Francois de Beer, one of the graduates in the Faculty of Natural and Agricultural Sciences who obtained his qualification in Chemistry and Biochemistry during the April graduation ceremonies, can be seen as one great act of ‘magic’. Other people may describe it as coincidence with a couple of miracles as the end result.

An opportunity 

After completing his schooling at Hoërskool Fichardtpark in 2008, Francois decided to study at the University of the Free State (UFS). “Kovsies gave me the opportunity when nobody else would,” said Francois. 

He did not have Maths subjects at school but wished to study in a Science field. “It is the closest one will ever come to doing magic,” he said.

The human element

Francois, who initially did not perform very well academically, did a bridging course in Mathematics and since then achieved distinctions in all his subjects. He related his story: “I did not have any Maths subjects at school, therefore it was very difficult for me to get to this path. The big difference was that Ms Elzmarie Oosthuizen from the UFS bridging programme saw something in me when nobody else did. She gave me the opportunity to do the Mathematics course, after which I was able to further continue on the Science path.”

“I would definitely recommend the UFS to other prospective students. I think Kovsies has a human element that really looks after students,” Francois said. 

Francois is currently pursuing his postgraduate studies in Chemistry. He wants to make a difference in the lives of other people, just as others made a difference in his life. 

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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