Latest News Archive

Please select Category, Year, and then Month to display items
Previous Archive
17 August 2021 | Story Nonsindiso Qwabe | Photo Sonia Small (Kaleidoscope Studios)
Bold and fearless - Prof Aliza le Roux.

Prof Aliza le Roux is Associate Professor in Zoology and Entomology, and Assistant Dean in the Faculty of Natural and Agricultural Sciences on the UFS Qwaqwa Campus. 

A researcher at heart, and with a passion for researching wild mammals, small carnivores, and primates, Prof Le Roux says she is extremely curious and loves to know about a lot of different things.

I decided that I wanted to do something with wildlife, so I completed a BSc degree at Stellenbosch University. One day a professor said: “I just got back from doing research – we were catching lizards along the Orange River” – and I remember thinking, ‘yes, I can see that as my life’. Research is a fantastic career for anyone with curiosity and perseverance. You must have a good dose of bull-headed persistence. We all have the baseline intelligence, but anyone who has studied up to PhD will tell you that it is the persistence that carries you through.

Is there a woman who inspires you and who you would like to celebrate this Women’s Month, and why?

What drew me into a career in research was Dian Fossey, an American researcher who was known for undertaking an extensive study of mountain gorilla groups. She had the guts to go out there and be there in the wilderness as the only woman there, doing stuff under extremely difficult conditions. 

Recently, it will be Simone Biles – she does the most mind-blowing stuff with gymnastics – who said she could not go forward with competing in the Olympics because of health reasons. I cannot imagine what guts it takes to say no at such a high-profile sporting event. The ability to say no is something that few of us possess, so right now she is a person I would love to celebrate. I am inspired by women who have the guts and the fact that you believe enough in yourself to do something, despite what others might have to say about it. 

What is your response to current challenges faced by women and available platforms for women development?
There is never enough support or platforms available for the development of women while you have domestic violence and GBV at such insane rates in this country. It’s still a women’s problem, whereas its men perpetrating this and women implicitly supporting it in the way we raise young men and respond to things such as rape accusations. 

It’s a societal problem, and I personally will not be happy until I see this changing in the country. You can look at the massive inequalities and gender biases and the things that are stacked against women, and then feel overwhelmed and step back and say this is too big a problem, I can’t do anything about it. You might not be able to tackle the big problem, but you can chip away at it. Everybody must contribute in a small way. 

What advice would you give to the 15-year-old you?

Be bold. Be fearless. I slowly started becoming like that at that age, but I could have started earlier. I should have told her I was gay; that would have helped. 

What would you say makes you a woman of quality, impact, and care?

There’s a healthy dose of guts and believing in yourself – that is the only way to make an impact. You cannot make an impact if you are doubting your own value, and this is difficult, because we are raised in many instances to be meek, raised to not be leaders but followers, and it’s difficult to overcome that and realise that you are bringing something unique to this world. 

The university is taking some very good steps with the mentorship programmes that it supports. But I would love to see more mentorship for students. Young men and young women in our care being inspired to talk and rethink how they treat women and what equality really means. We need to create more reflective people.

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