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20 August 2019 | Story Valentino | Photo Pexels
Yoga

Are you always anxious and exhausted? Consider for a moment what you can do to break your hectic routine. Maybe stay in bed and binge-watch a series? Or what about joining a yoga class? Let us imagine for a moment that you have opted for the latter. What could possibly be the results of such a choice?

According to Psychology Today, there is a growing body of research to back up yoga’s mental health benefits. “Yoga increases body awareness, relieves stress, reduces muscle tension, strain and inflammation, sharpens attention and concentration, and calms and centres the nervous system.”

Since the beginning of the year, a group of students has been practising yoga on the lawns of the Bloemfontein Campus at the University of the Free State (UFS). At first the group comprised students from the Office for International Affairs’ Umoja Buddy Programme, but it has since expanded to include the general student population.

Strength and stamina from body to mind 
They call themselves “"Yoga Yodas”. Their instructor, Dominique de Kock, says she has witnessed an increased level of calmness and relaxation among the group, which has had a positive effect on their academic performance and mental wellbeing.

Given the anxiety academics can create among some students, yoga is a proven method of achieving a state of positive mindfulness. “Yoga is great for when you are stressed out. Give yourself an hour to just be at peace, relax your mind and practise meditation which is not spiritually tied to any religion,” says De Kock.

Mental health and self-care go hand in hand. Find out more on yoga's positive benefits on mental health and wellbeing, by watching the video below: 

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.

 

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