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07 February 2018 Photo Facebook
Louzanne and Marné included in national student cross country teams
Athlete Louzanne Coetzee, and her guide, Xavier Adams
Two Kovsie athletes, including the blind athlete and world record holder, Louzanne Coetzee, have been included in the national student cross country team.

Coetzee and Marné Mentz will compete at the World Student Cross Country championship on 7 April in St Gallen in Switzerland.

They qualified for the team after good performances at the Athletics South Africa’s cross country trials held at the University of the Free State (UFS) on 20 January. The distance was over 10km.

What makes Coetzee’s inclusion even more remarkable is the fact that she will be competing against able-bodied runners. The world record holder in the 5 000m in her disability category (T-11) and her new guide, Xavier Adams, finished first among the female students in a time of 39:32, which is her personal best. Mentz ended in second place for students in 39:44. They will make up two of the six spots in the women’s team in Switzerland.

First for Coetzee

 It is the first time that Coetzee was chosen for an able-bodied national team. She is doing a master’s degree in Reconciliation and Social Cohesion this year and Mentz is in her final year of a BEd Intermediate Phase.

Tshepang Sello, another Kovsie and an Olympic athlete from Lesotho, took first position for students in 38:04 but did not qualify for the South African team because of her Lesotho citizenship.

Kesa Molotsane (35:29) was the overall winner. Although Molotsane is still doing her honours this year, she ran in the open division as she no longer qualifies as a student because she is over the age of 25, according to University Sport South Africa regulations.

Molotsane ,26, is the national cross country champion of 2016 and obtained second spot last year.

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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