Latest News Archive

Please select Category, Year, and then Month to display items
Categories
UFS News Media Release Research
Years
2017 2018 2019 2020 2021 2022 2023 2024
Months
January February March April May June July August September October November December
Previous Archive
22 May 2018 Photo iStock
UFSAfricaWeek - Sharing a meal to celebrate Africa Day
Since the foundation of the Organisation of African Unity on 25 May 1963, the day has been renowned as Africa Day, celebrated widely across the world and particularly in Africa to signify Africa’s identity and unity.

As a build-up for Africa Day celebrations, the Student Representative Council’s (SRC) executive committee of the International Students Council collectively came up with the ‘Meal in a jar’ initiative. The purpose of this initiative is to reach out to the community, interact and promote unity as a way of celebrating Africa day. It is also to bring to life the sense of integration and inclusion for international students. “From the time one sets foot at the University of the Free State (UFS), the only community most of us will know is the UFS community,” said Andrei Tendai, the SRC International Students Council representative.
 
The international students’ council in collaboration with Elanja Children’s Initiative identified Heide Primary School in Heidedal for this project. Through the ‘Meal in a jar’ initiative, international students will have the opportunity to engage with the broader community outside the institution’s walls in a fun and unique way. Together with volunteers from House Kestell and other partners, the SRC on 24 May 2018 will prepare and share a meal in a jar with 130 learners.

“This project emphasises the efforts by the SRC to denote a significant shift from an attitude of international students’ isolation and exclusion, to an inclusive and open policy that encourages integration and the promotion of the right to equality,” said Tendai.
 
Celebrating Africa day is also about working towards an Africa that relies on the potential of its people, and whose development is people-driven especially for women, youth and children. 

For more information on this project, contact Sonya Kapfumvuti on 062 258 2776.

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.

 

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept