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28 November 2022 | Story Edzani Nephalela | Photo Edzani Nephalela
UFS Creative Clubs
Joleen Hamilton assists learners with their activities.

In an ever-changing, increasingly complicated world, the youth must be prepared to bring knowledge and skills to solve issues, make sense of information, and know how to acquire and analyse evidence to make judgements. Science, Technology, Engineering, and Mathematics (STEM) education encourages discussions and problem-solving among students, developing practical skills and an appreciation for collaborations. 

The Social Responsibility Projects department on the UFS South Campus is running a Creative Clubs programme that speaks to STEM education and collaboration.

Opening opportunities 

The primary goal of Creatives Clubs, a MerSETA-funded programme, is to open opportunities to develop problem-solving, critical thinking, and reasoning skills. One aspect Creative Clubs focuses on is identifying potential in the pupil and supporting them in participating in the Eskom Expo for Young Scientists. Learners participate in mathematics, science, and coding activities at the club.

According to Joleen Hamilton, the coordinator and founder of Creatives Clubs, they currently host top-achieving learners in maths from eight schools from Grades 8–12 in Bloemfontein. These schools are split into two groups, which meet at the South Campus on Tuesdays and Thursdays. “We need maths daily, since it stimulates the intellect and aids problem-solving. That’s why, no matter how complicated the sum looks, keep trying and do not give up,” Hamilton said at one of the maths sessions.

Enhancing critical thinking

Matheko Thamae, also a coordinator, mentioned that this programme significantly improves maths and science outcomes for high school learners. “With a dynamic world of innovation and the 4th Industrial Revolution (4IR), the club also assists learners with critical thinking and in solving their communities’ socio-economic issues,” Thamae said. 

“Attending these sessions assists me in thinking out of the box and realising that every problem has a solution. I will continue to attend the programme so that I can find solutions to unresolved problems,” Sechaba Ramakatsa, a Grade 9 learner from Lekhulong Secondary School, said. Ramakatsa, who enjoys assisting others, aspires to be a medical doctor so that people might have better healthcare experiences.

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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