Latest News Archive

Please select Category, Year, and then Month to display items
Previous Archive
22 November 2022 | Story Gerda-Marié van Rooyen
Antjie Krog at UFS
The award-winning writer, Antjie Krog, will be the keynote speaker at the International Hybrid Conference from 24 to 26 November 2022. This conference is a joint venture of the University of the Free State (UFS) Centre for Gender and Africa Studies and the War Museum.

The award-winning writer, Antjie Krog, will be the keynote speaker later this week at an International Hybrid Conference titled, The Unsung Heroines and Youth of South Africa: Violent Histories and Experiences of South African Women and Children during Wars, Conflicts and Pandemics. This conference – a joint project of the Centre for Gender and Africa Studies at the University of the Free State (UFS) and the War Museum – starts on Thursday 24 November and will be hosted at the War Museum in Bloemfontein and broadcast online. The three-day conference overlaps with the global 16 Days of Activism Against Gender-Based Violence and aims to assemble historians, academics, and other scholars researching the violent histories of not only women and children in the South African War but in other wars, conflicts, and pandemics as well.

Prof Krog, an Extraordinary Professor in the Faculty of Arts at the University of the Western Cape, poet, and author of Country of my Skull (among other books), is an alumna of the UFS, where she completed a BA degree with Afrikaans, Philosophy, and English. She will deliver her keynote address, Survival, Complicity, and Race: (Im)possibilities of Narrating and Interpreting Rape in Havenga Affidavits, on the first day of the conference.

Prof Heidi Hudson, Dean of the Faculty of the Humanities at the UFS, will deliver her keynote address on Friday (25 November 2022). Prof Hudson is considered a specialist in feminist security studies. Her keynote address is titled Disciplinary and other stories: From women’s peace movements to the Women, Peace and Security ecosystem.

Several historians, academics, and scholars will either present their research or attend the conference. The conference aims to gather various stakeholders who are researching the violent histories of not only the women and children in the South African War, but other wars, conflicts, and pandemics in South African history dating from precolonial times to the World Wars, Apartheid, to the present. Each of the eight sessions over the first two days will conclude with time set aside for discussion.

The conference programme includes a visit to the art exhibition Unsung Heroes at the Oliewenhuis Art Museum on Friday after the last session. On Saturday, conference attendees can look forward to a tour of Bloemfontein. Click here for more information or send an email to vicky@anglo-boer.co.za.

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