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12 September 2019 | Story Ruan Bruwer | Photo Varsity Sports
Netball
Jana Scholtz, goal defender and playing in her first year as a regular starter, has been a solid performer for the Kovsie netball team in Varsity Netball.

The building blocks are starting to form a solid basis from where Kovsies can launch an attack to defend the Varsity Netball title they won in 2018. This is according to Karin Venter, one of the team’s assistant coaches.

After losing their first encounter to Tuks, they registered wins over the University of Johannesburg, Tshwane University of Technology, and the North-West University. The match against the Maties in Bloemfontein on 23 September 2019 – the last in the group stage, should determine which of the two teams will book a home semi-final along with Tuks.

“Yes, that is the crucial one,” said Venter, the team’s defensive coach. Her counterpart at the Maties is Adéle Niemand, with whom Venter combined as defenders at Kovsies for several matches in the mid-2000s. Apart from the Maties, the women of the University of the Free State still have to face the Madibaz and the University of the Western Cape (both in Pretoria on 15 and 16 September 2019).

“The combinations are starting to form a unit and our confidence is on the increase. Now we are looking for consistency in our performances.”

According to Venter, they were hit hard by goalkeeper Ané Retief’s injury, which kept her out of the first two matches. This meant that they had to start against Tuks with a first-year student, Chanel Vrey.

“It was tough, but I’m impressed with the way in which she, Ancia Pienaar, and Jana Scholtz – who are all youngsters – stepped up.”

Venter is responsible for the analyses and recons to assist players.

“The programme we are using provides us with all the required footage. You can make notes on it and send these clips to players, which means you don’t have to sit next to a player to explain something. We also provide them with notes and sketches of opponents’ playing patterns, which they must work through as part of their preparation.”

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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