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10 November 2023 | Story André Damons | Photo SUPPLIED
Muthianzhele Ravuluma receives an award from Prof Sebastian Leuzinger from the Auckland University of Technology in New Zealand.
Muthianzhele Ravuluma receives an award from Prof Sebastian Leuzinger from the Auckland University of Technology in New Zealand.

A PhD student from the University of the Free State (UFS) has won the International Society for Horticultural Science (ISHS) Young Minds award for the Best Paper and Best Poster Presentation during the 12th International Workshop on Sap Flow, which was held in Rotorua, New Zealand.

Muthianzhele Ravuluma from the Department of Soil, Crop, and Climate Science who is working on his PhD in Agrometeorology, presented a paper on “Sapflow Dynamics of Young and Mature Pomegranate Trees Under Irrigation” during the four-day symposium that took place between 30 October and 3 November 2023. Agrometeorology is the study of the soil, plant and atmosphere continuum. In simple terms, it is called agricultural meteorology, which is the study of the influence of weather and climate on agriculture.

Encourage do and learn more 

“I feel thankful to being given an opportunity like this, and winning the award was a surprise. Still, I am happy and grateful for the support from my promoters and the Pomegranate Water Use Project members. This encourages me to do more and to learn more about new technologies in the field of agriculture,” he says. 

Ravuluma travelled to New Zealand with his promotor Dr Phumudzo Tharaga to present his research and to learn from other researchers is the field. His research looks at the water use of pomegranate trees under irrigation in a Mediterranean climate. 

A proud Dr Tharaga says he is happy to know that the guidance he has been giving to Ravuluma is fruitful and improving his academic and research capabilities. “I feel proud as a supervisor, which makes my dream come true of ensuring that all postgraduate students can showcase their work on international stages,” says Dr Tharaga. 

Hosting next symposium 

Together with Prof Rob Skelton from Wits University, they also successfully bid to host in the 13th International Sap Flow Workshop in South Africa – beating China and the US in the process. All three colleagues will collaborate as conveners of the workshop in South Africa during October/November 2026. 

“It is an honour to be recognised and entrusted by the international community of scientists who would like to showcase their work in South Africa. As the convener of the conference, I am happy that it will be hosted in our country for the first time since the inception of the Sap Flow Working Group. Scientists and researchers in South Africa will be able to interact with their peers from different parts of the world,” concludes Dr Tharaga.

Dr Phumudzo Tharaga congratulates Muthianzhele Ravuluma on winning the  prestigious award.

Dr Phumudzo Tharaga congratulates Muthianzhele Ravuluma on winning the  prestigious award. 

News Archive

Power interruptions: Information for internal communication
2008-01-31

As part of the UFS’s commitment to address load shedding, the management would like to communicate the following:

The UFS mainly deals with the power interruptions by way of (a) the possible installation of equipment (e.g. generators) and (b) operational arrangements to ensure the functioning of the UFS in spite of power interruptions.

During the past week progress was made on both fronts. The information that follows resulted from a meeting of a task team of Physical Resources led by Mr Nico Janse van Rensburg, which took place on Monday 28 January (this task team naturally focuses on physical solutions) and a discussion by Exco on Wednesday 30 January 2008. Exco discussed the recommendations of the mentioned task team in respect of physical aspects, as well as the operational arrangements proposed by faculties.

Physical solutions

A Main Campus

1. New emergency power installations already approved:

Last week Exco gave its approval for the design and installation of emergency power equipment in all the large lecture-hall complexes to proceed immediately.

In all these cases

  • load surveys have been completed and a start has been made with the ordering of equipment and the process of appointing contractors. (Exco approved the adjustment of normal tender procedures in an attempt to expedite completion.)
  • generators with 20-30% more capacity than required for the current load are being ordered.
  • provision is being made for the connection of lights and at least one wall plug to the emergency power.
  • the expected construction time is 16 weeks (except in the case of the Flippie Groenewoud Building where it is 6 weeks).

The above-mentioned concerns lecture halls/ venues in the following buildings: Examination Centre, Flippie Groenewoud Building, Stabilis, Genmin and the Agriculture Building.

As far as the Agriculture Building is concerned, a larger generator (larger than required for lecture venues only) is being ordered in view of simultaneously providing essential research equipment (refrigerators, ovens, glasshouses) with emergency power within 16 weeks.

2. Investigation into the optimal utilisation of present emergency power installations

All the emergency power systems are being investigated on the basis of a list compiled in 2006 to determine whether excess capacity is available and whether it is possible to connect additional essential equipment or lights to it.

The electrical engineer warns as follows:
“Staff members must under no circumstances overload present emergency power points.

A typical example of this is a laboratory with 10 power points of which 2 points are emergency power outlets. Normally a fridge and freezer would, for example, be plugged into the two emergency power points, but now, with long load-shedding interruptions, a considerably larger number of appliances are being plugged into the power point by means of multi-sockets and extension cords. In the end the effect of such connections will accumulate at the emergency generator, which will then create a greater danger of it being overloaded and tripping, in other words, no emergency power will then be available.”

3. Requests and needs addressed directly to Physical Resources or reported to Exco via the line managers.

All the physical needs and requests addressed directly to Physical Resources or submitted to Exco via the line managers are being listed, classified and considered technically in view of their being discussed by the task team on Monday 11 February.
The information will (a) lead to recommendations to Exco regarding possible additional urgent emergency power installations, and (b) be used in the comprehensive investigation into the UFS’s preparedness for and management of long power interruptions.

Requests that can easily be complied with immediately and that fit into the general strategy will indeed be dealt with as soon as possible.

4. Purchase of loose-standing equipment: light, small, loose-standing generators, UPSs as solutions to/ aids during power interruptions

Exco approved that

a) faculties and support services accept responsibility themselves for the funding and purchase of loose equipment such as, for example battery lights, should they regard these as essential.
b) UPSs (uninterruptible power supplies) that faculties and support services wish to purchase to combat the detrimental effect of unexpected power interruptions on computer equipment) can (as at present) be purchased from own funds via Computer Services.
c) UPSs (uninterruptible power supplies) that faculties and support services wish to purchase to combat the detrimental effect of unexpected power interruptions on other types of equipment can normally be purchased from own funds with the consent of the line manager concerned.
Note: Please just make sure of the appropriateness of the equipment for a specific situation: it is not a power supply that can bridge a two-hour power interruption.)
d) small, loose-standing generators can be purchased from own funds via Physical Resources and installed under their supervision.
e) laptop computers can , where necessary, be purchased from own budgets. The availability of second-hand laptop computers must be taken into account.

B Vista

No major problems have been reported to date. The situation is being monitored and will be managed according to need. The same guidelines that apply to the Main Campus will naturally also apply to the Vista Campus.

C Qwaqwa

The situation is receiving attentions and solutions have already been found for most problems.

D General

1. All-inclusive project
A comprehensive investigation into the UFS’s preparedness for and management of long power interruptions will be launched as soon as possible. Available capacity will be utilised first to alleviate the immediate need. The needs assessment to which all faculties and support services have already contributed is already an important building block of the larger project.

2. Building and construction projects currently in the planning and implementation phase
The need for emergency power for projects such as the new Computer Laboratory is being investigated proactively and will be addressed in a suitable manner.

3. Liaison with Centlec
Attempts at direct and continuous liaison are continuing in an attempt to accommodate the unique needs of the UFS.

4. HESA meeting and liaison with other universities
A representative of the UFS will attend a meeting of all higher education institutions on 11 February. The meeting is being arranged by HESA (Higher Education South Africa) to discuss the implications for the sector, the management of risks and the sector’s response to government.

5. Internal communication
It is the intention to communicate internally after every meeting of the task team, which will take place on Mondays. Strategic Communication will assist in this regard.


 

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