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14 September 2021 | Story Leonie Bolleurs | Photo Supplied
Ofhani Mavhungu, Carina le Roux, Dr Foch de Witt , and Andries van der Merwe.

The Department of Animal Science at the University of the Free State (UFS) walked away with numerous awards at the 52nd congress of the South African Society for Animal Science (SASAS).

Dr Foch de Witt, Senior Lecturer in the department, explains that the SASAS congress is an annual event where scientists, academics, students, and various industry role players come together to share the latest research findings regarding different aspects of animal science and production. 

Acknowledging greatness

The SASAS Gold Medal was awarded to Prof Michiel Scholtz, affiliated professor in the department. “He was presented with this award for his honourable lifelong service to animal science. His scientific contributions and achievements have been recognised as exceptionally meritorious by both national and international animal scientists,” says Prof Frikkie Neser, Head of the Department of Animal Science.

Andries van der Merwe, a postgraduate student, received the SASAS Student Postgraduate Merit Award. According to Prof Neser, this is an annual national merit award to postgraduate students for exceptional academic achievement in Animal Science during undergraduate studies at any South African university.

Dr Sinobongo Mdyogolo, a PhD student of Prof Neser, was presented with the SASAS Bronze Medal in respect of her PhD achievements in the research and technology transfer categories. This is the highest honour a student can get after completion of their PhD degree.

During the SASAS congress, a total of 22 oral and poster contributions were delivered by staff and students from the Department of Animal Science.

A great networking opportunity 

Another highlight for the department was when three of its students – Carina le Roux, Ofhani Mavhungu, and Andries van der Merwe – participated in and won the SASAS national student quiz. Team UFS was one of 13 student teams from various tertiary institutions participating in the competition. The external panel of judges complemented the team on how they integrated theoretical principles in a practical and applied manner.

According to Dr De Witt, UFS Animal Science graduates compare very favourably with other students from tertiary institutions in South Africa. “Many of our students seek employment in the animal feed industry and they excel in their professional career development. It is clear that the curriculum updates of the past few years were successful in ensuring that students are able to integrate theoretical and practical concepts in an applied manner – a skill that is sought after in the industry,” he says. 

He also believes that an event such as the SASAS congress is an ideal network opportunity where students can get exposure to congress presentations, while having the opportunity to meet potential employers and/or sponsors.

“The SASAS congress creates a platform for students to measure themselves in terms of scientific development and career preparedness by interacting directly with other students from different tertiary institutions as well as industry members. Exposure to events such as this furthermore prepares them for their professional registration with the South African Council for Natural Scientific Professions (SACNASP),” adds Dr De Witt. 

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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