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
21 September 2020
MESSAGE FROM THE RECTOR AND VICE-CHANCELLOR: UPDATE ON DEVELOPMENTS AT THE UFS

I hope you are well, healthy, and safe. I have experienced an overwhelming sense of commitment from staff and students across the university to make a success of the 2020 academic year. Thank you for working together towards this common goal.

Currently, we have a significant number of students back on the campuses in line with the university’s reintegration plan, and others are continuing with online learning. On 16 September 2020, President Cyril Ramaphosa announced that the country will move to alert Level 1 as from midnight on Sunday 20 September 2020. During Level 1 of the national lockdown, we will continue to return staff and students in a structured and phased approach according to the university’s reintegration plan. However, we are still unable to return all our students to the campuses, as we have to adhere to physical distancing and hygiene measures and also have to take into account the capacity of the lecture venues on the campuses, but most specifically the residences.

Please note that you will be informed by your faculty if you are required to return to campus during Level 1. If you have NOT been contacted, you will be supported through remote multimodal teaching, learning, and assessment until you are informed by your faculty that you can return to campus.

Data shows that most of you have adapted well to the blended learning modes – I find it admirable and inspiring. Rest assured that your lecturers are continuing to work hard to deliver a quality teaching and learning experience. Please use the #LearnOn material as a guide to plan for the second semester and engage with your lecturers on academic problems or consult with your faculty structures to find suitable solutions.

The university is aware that international students who have been residing outside of the country during Levels 5 and 4, may return to campus during Level 1; we will communicate with these students in due course.

I am confident that you are focused and committed to completing the second semester. We have prepared a safe environment for students who are returning to campus during Level 1. Sufficient hygiene measures are in place, as well as re-configurations to ensure physical distancing. The wearing of masks, physical distancing, and hand sanitising remain compulsory on all the campuses.

During Level 1, campus access will remain restricted – only those with campus access permits will be allowed to enter. Space in our residences remains limited due to physical distancing and residence students must comply with the protocols in their respective residences. See the Return to campus of students_Level 1 of national lockdown document for more information.

Although our country will be on Level 1 of the national lockdown, it is still extremely important that you remain vigilant and take ownership of your health and look out for the health of those around you. Ultimately, your health is your responsibility. Please do not let your guard down and adhere to the protocols and regulations – for your own safety, and for the safety of others.

It is also important to keep your mental health in check – make use of the #WellbeingWarriors campaign from our Department of Student Counselling and Development, which is aimed at encouraging health and well-being among students. Visit the COVID-19 website for comprehensive information and updates.

Although the infection rate in our country is decreasing, remember that the COVID-19 pandemic is still testing every aspect of society; we must not underestimate the impact that the pandemic still has on local and global communities. Take care of yourselves and those around you and comply with the national guidelines and regulations.

I wish you all the best with your studies.

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