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Revolutionising wheat: Developing cultivars that maintain their quality in heat and drought

28 April 2023 | Story Leonie Bolleurs | Photo Supplied

UFS PhD student and food scientist Schae-Lee Olckers’ research could contribute to a stable supply of good quality wheat and bread, even in the face of climate change.

Follow your passion in order to find your purpose. This is the mantra of food scientist and University of the Free State (UFS) PhD student Schae-Lee Olckers, whose research is set to improve wheat quality by identifying which types of wheat are better able to tolerate stress, and which proteins are most important for producing high-quality bread.

“By grasping this, it is possible to ensure that we continue to have a stable supply of good quality wheat and bread, even in the face of climate change,” says Olckers, who believes wheat is one of the most important food grains in the human diet, and one of the most important staple cereal crops in the world.

Her PhD study, ‘The influence of abiotic stress on gluten protein and baking quality in bread wheat’, under the supervision of Dr Angie van Biljon and Prof Maryke Labuschagne in the Department of Plant Sciences, and Prof Garry Osthoff in the Department of Microbiology and Biochemistry, is investigating how different levels of heat and drought stress – mostly due to climate change – affect the gluten protein composition of high-yield bread wheat.

Olckers is a food scientist at StartWell Foods (Pty) Ltd, a non-profit organisation that produces high-quality extrusion products for feeding schemes around the country. The products help to eliminate stunted growth among children.

Improving wheat breeding programmes

This research could help us find ways to adapt to climate change and continue to produce high-quality wheat and bread for people around the world. – Schae-Lee Olckers

Her research focuses on examining different types of wheat and investigating how proteins are affected by stressors like heat and drought, to understand how these stressors impact the quality of bread. She uses new proteomic methods to look at the different proteins in the wheat flour, to gain a better appreciation of how gluten proteins react to stress.

In this study Olckers is able to see how the proteins change in the various wheat cultivars, helping us to understand how the different types of wheat perform in baking, and how the proteins affect the final product.

She collaborates with the International Maize and Wheat Improvement Center (CIMMYT) in Mexico, that releases new wheat cultivars for developing countries. Their aim is to develop wheat cultivars that maintain their quality in different environments. To investigate the performance and characteristics of the seeds, both in the field and in the laboratory, CIMMYT did the field trials, quality assessment, and supplied the seeds for high-performance liquid chromatography (HPLC) and proteomics analysis.

Finding ways to adapt to climate change

She believes that understanding how these stressors impact the production of bread-baking quality in wheat will help scientists gain important insights into how climate change affects our food supply.

“Taking into consideration the current and projected intensifying heat and water deficit stresses, it is crucial to improve the understanding of these phenomena in order to implement new breeding strategies for sustainable wheat quality. This research could help us find ways to adapt to climate change and continue to produce high-quality wheat and bread for people around the world,” Olckers says.

News Archive

State of our campuses: UFS closes campuses until Friday 28 October 2016 to readjust academic programme

2016-10-15

UFS announces strategy for completion of the 2016 academic year

Agreement between UFS management and student leadership in relation to residences

After almost four weeks of student protests about fees at the University of the Free State (UFS) and the subsequent suspension of the academic programme and closing of campuses, the senior leadership announced on 14 October 2016 a strategy to ensure that students will be able to complete the 2016 academic year.

The university on 13 October 2016 announced that it will shut down its Bloemfontein and South Campuses until 28 October 2016 for crucial and complex arrangements to be put in place to readjust the academic calendar and ensure that all students can complete their studies. The senior leadership did, however, make it clear that the university will not be shutting down for the remainder of 2016.

No teaching and learning activities at undergraduate and honours level will be offered between 17 October and 28 October 2016. The university will re-start teaching and learning at undergraduate and honours level in the first week of November 2016.

However, teaching and learning will not take place in the classrooms during November 2016, but through a different mode of delivery that consists of a combination of printed and recorded lectures, study materials and learning aids that will be provided by the university and delivered through Blackboard. In this manner no attempts at disrupting the rest of the academic year will affect our students’ academic programme. Students, however, will sit for the exam on campus.

Students in residence accommodation can return to campus as from 29 October 2016 and it is recommended that students who do not have off-campus internet access return to campus in order to access study material to complete the academic year.A new timetable for exams is still being developed and will be communicated as soon as the arrangements have been finalised.

Faculties have been differently affected by the loss of teaching time. Some faculties like the Faculty of Law have completed their curriculum, while other faculties like the Faculty of Natural and Agricultural Sciences require more teaching time. Some faculties, like the Faculty of Health Sciences, cannot do teaching through alternative modes of delivery.

The needs of the different faculties have been taken into account for developing a rescue plan to complete the 2016 academic year.

The Faculty of Health Sciences will continue its classes and clinical rotations as normal for all three schools on the Bloemfontein Campus and in the relevant hospitals. All students registered in programmes in the Faculty of Health Sciences will stay in residences for the full period of their studies and exams. Final-year medical students will graduate in December 2016 as expected.
In the Faculty of Economic and Management Sciences, final-year students for the Certificate in the Theory of Accounting (CTA) will stay on campus during October through to December 2016 and their classes and tests will not change.
Arrangements for all other faculties and programmes are being prepared and within the next week, students and parents/guardians will receive communication about how curriculum content will be completed and when the final exams will take place.
The university is extending the academic year so that we can recuperate all the lost teaching and learning time. The qualifications conferred on the 2016 class will be of the same quality and standards as all UFS qualifications.

The UFS is and will remain a fundamentally contact teaching and learning education university. However, under the current circumstances faced not only by the UFS, but higher-education institutions across the country, the best way of ensuring the integrity of the academic programmes in most faculties is by using an alternative way of teaching and learning. Other South African universities have chosen the same approach to be able to complete the academic year.

Instead of students going to class, they will have content delivered to them where they are (library, computer labs, their own computers, etc.) through Blackboard and printed and electronic material. This is a different way of learning but students will be carefully guided and supported.

Faculties are currently preparing all the necessary materials and instructions to support student learning.Standards and quality will be the same as if students were attending classes. Some faculties require practical laboratory work as part of their curriculum. The exam timetable will be adapted for these students to be able to complete their practical work when the academic activities commences in November 2016. The relevant faculties will communicate the schedule of practical work directly to the students.

Students in their final year will complete their studies during 2016. It is possible that in some cases the graduation ceremony for these students will be in June 2017 instead of April 2017. This will not prejudice students with bursaries, or committed employment in law firms or other businesses. The university will provide the necessary academic transcripts as proof of the completion of the relevant qualifications. None of these changes will affect postgraduate students.

The university will maintain regular communication with students and parents/guardians to update them on the new exams timetable.Faculties will communicate directly with students about issues related to their programmes.

“One of the areas in which significant progress was made, is that we were able to agree on a basis for stability with student leaders. The student protests occurred during an important time in the university’s academic calendar and the readjustment of our academic programme has put tremendous pressure on academic and support services staff, and created anxieties for parents,” said Prof Nicky Morgan, Acting Rector of the UFS.

“The senior leadership restates its commitment to free education as well as its willingness to stand together with students and other public universities to impress on government the urgency to decide on a time frame for the roll-out of free higher education for the poor and missing middle. We will use the next two weeks to meet with the leadership of Universities South Africa to coordinate collective action in this regard. We will furthermore also roll out a series of activities to inform and educate students and the general public on different models and experiences of providing free higher education,” he said.

The strategy to readjust the 2016 academic year is applicable to students on the Bloemfontein and South Campuses.

Released by:
Lacea Loader (Director: Communication and Brand Management)
Telephone: +27 51 401 2584 | +27 83 645 2454
Email: news@ufs.ac.za | loaderl@ufs.ac.za
Fax: +27 51 444 6393

State of our campuses #15: UFS closes campuses until Friday 28 October 2016 to readjust academic programme

State of our campuses #14: All academic activities on UFS campuses remain suspended on 13 and 14 October 2016

State of our campuses #13: Availability of information about plans for remainder of UFS 2016 calendar year

State of our campuses #12: All academic activities at UFS campuses suspended for 11 and 12 October 2016

State of our campuses #11: Academic activities on UFS campuses continue

State of our campuses #10: Impact of non-completion of the 2016 academic year on UFS students

State of our campuses #9: Academic programme on all UFS campuses to resume on Monday 10 October 2016

State of our campuses #8: UFS extends vacation as from 28 September until 7 October 2016, 28 September 2016

State of our campuses #7: All three UFS campuses will be closed today, 27 September 2016.

State of our campuses #6: All UFS campuses reopen on Tuesday 27 September 2016

State of our campuses #5: UFS campuses to remain closed on Monday 26 September 2016

State of our campuses #4: Decisions about the UFS academic calendar

State of our campuses #3: UFS campuses closed until Friday 23 September 2016

State of our campuses #2: UFS Bloemfontein and South Campuses closed on Tuesday 20 September 2016 (19 September 2016)

State of our campuses #1: Academic activities suspended on UFS Bloemfontein Campus (19 September 2016)

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