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06 November 2019 | Story Legopheng Maphile | Photo Legopheng Maphile
Best assigment winners
At the prize-giving were from the left, front: Christoffel de Lange and Ms Nombulelo Shange (who accepted the prize won by De Haan). Back row, from the left: Prof Neil Heideman, Professor in the Department of Zoology and Entomology; and Betsy Eister, UFS LIS Director.
The University of the Free State Library and Information Services (UFS LIS) is partnering with faculties in acknowledging top-performing students at the university. Together with the Faculties of the Humanities and Natural and Agricultural Sciences, the Best Assignment project was launched – meant to inspire, motivate, and encourage students to put extra effort into producing assignments of high quality.

Legopheng Maphile, Assistant Director: Library Marketing and Community Engagement at UFS LIS, says the project is meant to harness and nurture undergraduate research in line with the university’s research-led vision. 

“There are requirements as to how assignments should be presented. This demonstrates the level of knowledge acquisition and academic writing skills. The library contributes to this activity by training students in library research skills to access scholarly, academic, specialist, and expert information resources to support academic excellence. This is a collaborative practice between the library and academics.

“In 2019, only third-year assignments were considered in a pilot project, and at this stage, students are expected to understand what is required for writing assignments.”

Recognising the effort that students put into their assignments, the UFS LIS, in collaboration with the Departments of Sociology and Zoology and Entomology, recently handed out prizes of R2 500 to deserving students. 

Johandré J de Haan and Christoffel de Lange each received gift vouchers to the value of R1 250, courtesy of Van Schaik and Sherwood Books, in collaboration with Juta and Oxford University Press. De Haan was recognised for his assignment titled Marx and the impact of his theoretical concepts in the South African context and its relevancy and De Lange received a nod for his Differences in Heat Uptake Rate between White and Black Sand-filled Cans of Similar Size. 

Legopheng says going forward, the best undergraduate research assignments will be considered for publication in the Kovsie Undergraduate Research Journal, the library’s open-access journal that is being developed. 


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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