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18 October 2019 | Story Ruan Bruwer | Photo Getty Images
Jaco Peyper
Jaco Peyper, former Kovsie, will handle a quarter-final match at the Rugby World Cup. It will also be his 50th test match.
With the appointment of Jaco Peyper as referee there will be Kovsie alumni among the referees, players and coaches in the quarter-finals of the 2019 Rugby World Cup in Japan on 20 October.

Lappies Labuschagné will start on the flank for Japan in their clash against the Springboks on Sunday. Labuschagné, a former Shimla captain, is second on the list for tackles made in the tournament thus far.
In the Springbok camp there are former University of the Free State (UFS) students in Rassie Erasmus (head coach) and Jacques Nienaber (defence coach).

UFS alumnus Jaco Peyper has been entrusted with the whistle in Sunday’s other quarter-final between Wales and France. It will be a memorable match for Peyper as it will be his 50th test appearance as the 31st man on the field – making him only the third South African to achieve this feat.

Peyper, who is the only South African among the 12 referees at the tournament, made his World Cup debut in 2015 when he officiated the opening match. In total he has handled six World Cup encounters. 

His illustrious career has seen him become only the fourth referee in history to officiate in 100 Super Rugby matches earlier in the year, in which he also handled the final (his fourth Super Rugby final). Peyper scooped the SA Referee of the Year award in 2018 for a third time, a year in which he took charge of his fourth Currie Cup Final.

“The fact that he is only the third South African referee to take charge of 50 tests indicates what a special achievement this is. It takes years of hard work and dedication to reach this level as a referee, and to maintain this standard year-in and year-out is even more challenging as it requires one to produce effective performances consistently,” said Jurie Roux, the CEO of SA Rugby.

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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