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22 January 2020 | Story Leonie Bolleurs | Photo Leonie Bolleurs
Soil Confrence at UFS
At the Combined Congress with the theme ‘Basic and applied sciences – Fundamentals of sustainable agriculture’, were from the left: Prof Klaus Kellner, Prof Prakash Naidoo, Dr Cobus Botha from the Agriculture Research Council, Prof Vaughan Hattingh, and Mr Matome Ramokgopa.

“We are at the beginning of a new decade that will in all likelihood be pivotal for aspects such as food security, climate change, and the sustainable use of natural resources – aspects that the societies you represent are of course keenly involved with – and in terms of which you can play an increasingly valuable role.” 

These were the words of Vice-Rector: Operations at the University of the Free State (UFS), Prof Prakash Naidoo, on opening a Combined Congress of the Soil Science Society of South Africa (SSSSA), the South African Society of Crop Production (SASCP), the Southern African Weed Science Society (SAWSS), and the Southern African Society for Horticultural Sciences (SASHS).

The UFS Department of Soil, Crop and Climate Sciences is hosting the congress, with scientific content of four disciplines (soil, crop, weed, and horticulture) presented by both local and international guest speakers.

The theme of this year’s congress taking place on the UFS Bloemfontein Campus, is Basic and applied sciences – Fundamentals of sustainable agriculture.

Prof Naidoo continues: “It has been predicted that the world will need almost double the current food supply by 2050 to feed an ever-increasing world population. This clearly makes the scientific work done in the agricultural sector and the organisations affiliated with it, more vital than ever. We need to do what we can to ensure food security and sustainability.”

“A congress like yours is an opportunity to tap into the perspectives and research results of collaborators from different fields, and from different levels of skill and experience – with the aim of ultimately benefiting wider communities.”

Leader in agriculture sector

Prof Vaughan Hattingh, representing SASHS (Chief Executive Officer of Citrus Research International); Mr Matome Ramokgopa, representing SASCP (General Manager of Enza Zanden SA); and Prof Klaus Kellner, representing SSSSA (Department of Botany at the North-West University), delivered the combined opening address.

Prof Hattingh, speaking on ‘Industry–University partnership opportunity road ahead for horticultural research’, says citrus is a major horticultural product internationally and the biggest horticultural export from South Africa. The citrus industry, the second largest exporter of citrus in the world, generates R20 bn per year and is the biggest funder of research in this area. 

Prof Hattingh states that university partnerships, developing science to assist the industry, are key. “The future of horticultural industries and horticultural research at universities depends on successful university-industry partnerships.”

Mr Ramokgopa talked about ‘Innovative solutions for vegetable seed production for a growing population’, saying that Enza Zanden employed several techniques in vegetable production in response to the needs of retailers and consumers. These include smaller tomatoes (for snacking purposes), smaller leaf size of lettuce (thus a smaller area for decay), plastic-free packaging of cucumber with a longer shelf life, and more uniform onions (suitable for onion rings). 

Prof Kellner focused on ‘Scientifically sound policies and practices to ensure food security and sustainable agriculture’. He said: “It is getting warmer in Southern Africa and Europe. We need to realise it and adapt practices accordingly.”

More discussions on sustainable agriculture

Other interesting topics covered at the congress include, ‘Developing propagation technologies for indigenous plants used in the natural products industry’; ‘The influence of foliar and application rate of nitrogen fertiliser on seed and oil yield of canola’; ‘Sweet potato production in sacks: potential utilisation of limited space in rural, urban and peri-urban areas’; ‘The efficacy of postharvest wax application in the reduction of chilling injury incidence in lemon fruit’; and ‘Herbicide use within the commercial forestry sector in South Africa’.

Congress attendees can also look forward to the ‘Soil fertility and crop nutrition symposium: principles and practices’ on Wednesday 22 January 2020.

The congress kicked off on 21 January, and will come to an end on Thursday 23 January 2020. For more information on the sessions, see programme.

News Archive

Stress and fear on wild animals examined
2013-06-04

 

Dr Kate Nowak in the Soutpansberg Mountain
Photo: Supplied
04 June 2013

Have you ever wondered how our wild cousins deal with stress? Dr Kate Nowak, visiting postdoctoral researcher at the Zoology and Entomology Department at the UFS Qwaqwa Campus, has been assigned the task to find out. She is currently conducting research on the effects that stress and fear has on primate cognition.

The Primate and Predator project has been established over the last two years, following Dr Aliza le Roux’s (also at the Zoology and Entomology Department at Qwaqwa) interest in the effects of fear on primate cognition. Dr le Roux collaborates with Dr Russel Hill of Durham University (UK) at the Lajuma Research Centre in Limpopo and Dr Nowak has subsequently been brought in to conduct the study.

Research on humans and captive animals has indicated that stress can powerfully decrease individuals’ cognitive performance. Very little is known about the influence of stress and fear on the cognition of wild animals, though. Dr Nowak will examine the cognition of wild primates during actual risk posed by predators. This is known as the “landscape of fear” in her research.

“I feel very privileged to be living at Lajuma and on top of a mountain in the Soutpansberg Mountain Range. We are surrounded by nature – many different kinds of habitats including a tall mist-belt forest and a variety of wildlife which we see regularly, including samangos, chacma baboons and vervet monkeys, red duiker, rock hyrax, banded mongooses, crowned eagles, crested guinea fowl and cape batis. And of course those we don't see but find signs of, such as leopard, genet, civet and porcupine. Studying the behaviour of wild animals is a very special, and very humbling, experience, reminding us of the diversity of life of which humans are only a very small part,” said Dr Nowak.

At present, the research team is running Giving up Densities (GUD) experiments. This represents the process during which an animal forsakes a patch dense with food to forage at a different spot. The animal faces a trade-off between meeting energy demands and safety – making itself vulnerable to predators such as leopards and eagles. Dr le Roux said that, “researchers from the US and Europe are embracing cognitive ecology, revealing absolutely stunning facts about what animals can and can’t do. Hence, I don’t see why South Africans cannot do the same.”

Dr Nowak received the Claude Leon Fellowship for her project. Her research as a trustee of the foundation will increase the volume and quality of research output at the UFS and enhance the overall culture of research. Her analysis on the effect that stress and fear have on wild primates’ cognition will considerably inform the emerging field of cognitive ecology.

The field of cognitive ecology is relatively new. The term was coined in the 1990s by Les Real to bring together the fields of cognitive science and behavioural ecology.


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