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
09 May 2020
Dear Students

UPDATE ON DEVELOPMENTS AT THE UFS

I hope you are well, healthy, and safe. I also hope that you are engaging with your friends and lecturers regularly, and that you have settled into the online learning environment. As with communities around the world – including higher education institutions – Kovsies also feel the impact of the exceptional circumstances resulting from the global COVID-19 outbreak. So much has changed, and our lives are directly and indirectly affected. It is a true test of our resilience and ability to adapt to a changing environment.

I know that it has not always been easy for you – none of us were prepared for a global pandemic of this magnitude. But I also see this as an opportunity for us to develop our learning and teaching model and to find ways of further enhancing the university’s processes and systems.

The suspension of the academic programme and the national lockdown had a huge effect on our staff and students. We had to act fast to ensure the continuation of the 2020 academic programme. Our first priority was to develop low-tech online and distance approaches to learning and teaching. Consequently, we developed support for academic staff and students to navigate the new online learning environment. We also revised our academic calendar and rolled out a carefully planned emergency remote teaching and learning methodology.

It is encouraging to know that you began with online learning this week. Early indications are that the Transition and Orientation from 20 to 30 April 2020 worked well in preparing you for the online learning that started on 4 May 2020. It is also good to know that the #UFSLearnOn material helped you to get ready for the start of online academic activities. Be assured that your lecturers are working hard to deliver a quality teaching and learning experience in the current circumstances. Just as this is a new experience for you, it is also a new learning experience for your lecturers. You may still experience some challenges with your academics as we complete the first week of online learning. Please contact your lecturers and/or faculties so that we can find solutions for you. You can also visit the Digital Life Portal (under the Student Toolbox) on the KovsieLife website.

You have been away from your lecturers, friends, familiar surroundings, and campus facilities for a long time, and I know that you miss it. Unfortunately, the university is bound by Level 4 restrictions and it is not possible to allow any students back on our campuses until so directed by the national government. Only final-year MB ChB students are allowed to return to campus next week – as per the directive from the national government. The majority of staff are also working from home until otherwise indicated, and in accordance with national directives for the further easing of lockdown restrictions.

This is not a university decision but is prescribed in terms of national regulations. Be assured that the university has taken adequate measures to ensure the safety of all facilities, assets, and private belongings on the campuses. We will let you know as soon as we receive a directive that students may be allowed on campus – this will be done in a phased approach in order to contain the spread of COVID-19.

Your safety, health, and well-being remain our first priority. Look after yourself and your mental health – make use of the #WellnessWarriors campaign of our Department of Student Counselling and Development that is aimed at encouraging health and well-being among students.

Please remember to regularly check the official communication platforms to stay up to date with developments at the university. Avoid fake news, verify information, and only consult the official communication platforms. 

Obeying the lockdown restrictions is an act of kindness to yourself and to others; #StayAtHome and practise social distancing.

I wish you all the best with your studies and hope to see you on our campuses soon.


Best regards

Prof Francis Petersen
Rector and Vice-Chancellor


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