Latest News Archive

Please select Category, Year, and then Month to display items
Previous Archive
28 November 2018 | Story Charlene Stanley
Law home read more
Back row, from the left: Prof Danie Brand (Director of the Free State Centre for Human Rights), workshop co-organiser Helen Carr (Kent University), and Ellen Maphalane (home owner) with workshop participants during a visit to Ms Maphalane’s home, an example of alternatively constructed housing in Bloemfontein.

The body of a sixty-year-old homeless man is discovered in a tent on the outskirts of Canterbury, Kent, UK. Cursory research reveals that he had been refused a place on the council’s housing register and that he was a former member of the British armed forces – a group that makes up close to a quarter of the ‘rough sleepers’ in London. This raises questions about the complex relationship of politics, campaigning, gender, and welfare in homelessness law, policy, and practice.

Jump across the Atlantic Ocean to Klapmuts, Western Cape, South Africa, where beneficiaries of an RDP housing project are benefiting from the shelter provided in the form of private home ownership. Yet, they are not using these assets to its full potential, e.g. as security for credit to start or expand a business. This raises questions about whether the less expensive route of providing public housing with tenure security would not be a better option.

International workshop on housing

Diverse issues such as these came up for discussion as planners, geographers, architects, art historians, social activists, and lawyers recently met during a workshop at the University of the Free State to discuss what a home constitutes, and how best to provide and protect homes in a sustainable and inclusive manner in 21st century cities. The workshop was hosted by the Free State Centre for Human Rights on the Bloemfontein Campus.

Participants presented papers and engaged in discussions on home-related topics as diverse as Hannah Arendt’s conception of the intimate and political spheres; Henri Lefebvre’s notion of a right to the city; alternative, environmentally conscious building methods; court cases dealing with the concept of home; the right to a domestic garden as a component of the right to a home; and constructing the home as a subversive and empowering alternative when it comes to giving birth.

Going forward

The same group of participants will meet for a follow-up workshop at Kent University in the UK in February 2019, and a third workshop in Belo Horizonte in Brazil in June 2019, with the project culminating in the publication of an inter-disciplinary book containing the papers workshopped at the three events.

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