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12 July 2019 | Story Ruan Bruwer | Photo Tania Allen
Tanya von Berg
Tanya von Berg has represented the UFS netball team with distinction over seven years, winning three Varsity Netball titles and one USSA crown.

Although she did not quite reach her final goal in a Kovsie netball dress, being honoured one last time brought much peace to Tanya von Berg.

She was named in the Dream Team at the conclusion of the University Sport South Africa (USSA) tournament in Johannesburg and was thus recognised as the best centre at the competition.

According to the stalwart who played in her seventh year for the University of the Free State, her goal was to make this team and lift the trophy. The team didn’t succeed in the latter, losing to the North-West University in the semi-final.

Heading abroad
“Knowing that it would be the last time I would be playing for the team, I set myself these two goals. Although we were not able to claim the title, at least making the Dream Team helped to make me feel that I finished on a high, giving my all one last time,” she said.

Von Berg, who is doing her honours in Education this year, received a teaching post in Qatar, where she will start in August.

Remarkably this versatile player, who could play any one of four positions, only missed two matches in the two student competitions since making her debut as a first-year student in 2013. This was due to national commitments in 2016 (playing for South Africa A) and her honeymoon last year.

Standout moments
“Being named for the Protea training squad in 2016 and being selected for the national Fast5 team later that year, was the two outstanding moments of my career.”
“What I remember about my first year, was how huge it was to play with the seniors. The one player who served as my biggest inspiration, was Isélma Parkin. She didn’t receive the recognition she deserved. I learned from her to continue to work hard and to never give up.”


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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