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14 February 2019 | Story Xolisa Mnukwa
Zane Botha
Zane Botha, new head coach of the UFS Young Guns.

Zane Botha has won a Varsity Cup title as captain of Tuks, two Varsity hostel titles as coach of Vishuis, and now he would like to add a third trophy to his belt as head coach of the UFS Young Guns.

Zane guided House Vishuis to the national crown in 2017 and 2018 and was promoted to coach of the university’s U20 team playing in the Varsity Cup, known as the Young Guns.

Botha lifted the Varsity Cup trophy as the skipper of Tuks in 2012.

“To achieve success in a third Varsity competition would be quite special and is definitely a goal that I look forward to achieving while I work with young people,” Zane said.

The format of the Rugby Varsity Cup competition has changed and will now coincide with the competition for senior players. Both the seniors and the younger players will face the same opponents on the same day. The Young Guns are scheduled to play eight fixtures before the knockout stages, in contrast to earlier years when they only played twice against two opponents before the semi-finals.

In 2018 the UFS U20 team, who previously won the competition in 2014, won all four of their matches against the Ixias and the Pukke before they lost to Tuks in the semi-final.

According to Zane, this format provides the players with more playing opportunities, but at the same time it can also place their depth under pressure when they’re facing injuries, which he aims to limit.

He further explained that he is pleased to have had buy-in in the first round of matches, as it provided him with an extra week’s 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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