As global agriculture faces climate shocks and changing regulations, plant breeding remains a crucial foundation for farmer resilience. Dr. Makhlane Kgatle explains in detail how gene editing, biosecurity, and responsible innovation can protect productivity and foster the prosperity of South Africa's agricultural sector.
Agricultural genetics has always been the cornerstone of modern farming development. Long before the advent of genetically modified organisms and gene editing, farmers and breeders selected and improved plants with desirable traits such as higher yields, disease resistance, quality, and the ability to adapt to local conditions.
Over generations, traditional and hybrid breeding have made significant contributions to increasing agricultural productivity and sustainability. Recently, molecular breeding and biotechnology have expanded the arsenal of tools available to breeders to address increasingly complex production challenges.
For farming communities, the practical value of genetics lies in the fact that improved varieties help manage production risks, respond to climatic conditions, stabilize yields, combat pests and diseases, and produce raw materials that meet specific market demands.
Recent advancements in Germany and the European Union demonstrate growing international interest in the next generation of agricultural genetic technologies. The European Union adopted a new framework for certain New Genomic Techniques (NGTs), establishing different regulatory requirements for various categories of genetic modifications.
This framework recognizes that some targeted genetic changes may be comparable to those that could occur through traditional breeding, while more complex genetic modifications remain subject to more comprehensive requirements. These changes should not be viewed merely as a move towards deregulation, but as a demonstration of the importance of developing scientifically sound approaches that account for differences between technologies and genetic changes, while maintaining appropriate safeguards for human health, agriculture, biodiversity, the environment, and consumer confidence.
For South Africa, international trends present an opportunity to stay abreast of developments while continuing to develop the country's established scientific and regulatory systems. South Africa possesses significant experience in assessing and managing agricultural biotechnology, supported by research institutions, regulatory oversight, and risk assessment processes. These systems are vital safeguards that allow agricultural technologies to be thoroughly considered before application and adoption into production systems.
Breeding has constantly evolved. Farmers initially relied on selection and traditional breeding, then moved to hybrid breeding to increase yield and viability. Molecular approaches subsequently provided breeders with additional information to identify desired traits, and genetically modified crops introduced specific characteristics, such as insect resistance and herbicide tolerance.
Gene editing represents another development in this broad continuum of genetic improvement. These technologies offer various tools that can be suitable for different breeding objectives. Their value depends on the target trait, the production environment, the characteristics of the resulting variety, and the needs of farmers and markets.
The importance of genetics is growing as farmers face climatic variability, changing pest and disease pressure, rising resource costs, and evolving market demands. Genetic improvement can serve as an additional tool to manage these challenges, although genetics remains only one component of a broader production system. It is important to note that genetics does not operate in isolation; crop productivity is determined by the interaction of genotype, environment, and management.
A genetically improved variety may offer greater yield potential or enhanced resistance, but its actual effectiveness depends on whether it is suited to the production environment and whether it is supported by appropriate agronomic management.
South Africa already has extensive experience with agricultural biotechnology. Genetically modified maize, soy, and cotton have provided farmers with traits that support pest control, weed management, and production stability. These technologies have become part of modern production systems and have contributed to South Africa's accumulated experience in applying biotechnology in commercial agriculture.
This experience also underscores the importance of a robust legal framework. South Africa's GMO Act provides an established regulatory system for genetically modified organisms, backed by scientific assessments and institutional oversight. This framework provides essential guarantees, ensuring that potential risks to human health, agriculture, and the environment are properly considered.
The strength of this approach lies in responsible evaluation, not in adopting technologies for their own sake. Agricultural innovations must be accompanied by consideration of ecological interactions, biodiversity, food and feed safety, trade requirements, and consumer interests. Furthermore, biotechnology does not replace good agricultural practices. Improved genetics must be integrated with proper soil management, planting times, cultivar selection, pest and disease control, water resource management, climate information, and other agronomic methods. The greatest value is achieved when genetics and management work together.
Gene editing expands the range of tools available to plant breeders. It allows for targeted changes in genetic material and can open up opportunities for developing agriculturally relevant traits, including improved resistance to pests and diseases, adaptation to environmental stresses, and enhanced quality characteristics.
An important scientific aspect is that gene editing encompasses various types of genetic changes. Some may lead to changes that could also occur through traditional breeding or natural genetic variation, while other applications may involve more complex genetic modifications. Consequently, the characteristics of the resulting organism remain important when considering potential agricultural, environmental, and food consequences.
South Africa's existing regulatory framework serves as an important foundation for the responsible consideration of these technologies. As scientific understanding evolves, continuous assessment and monitoring can help ensure that new applications are considered within appropriate regulatory and biosafety requirements.
International developments can provide valuable scientific information without requiring South Africa to simply copy approaches adopted elsewhere. Different countries operate within different agricultural, environmental, economic, and regulatory contexts. Thus, South Africa can benefit from international experience while maintaining its own established safeguards and decision-making processes.
Ultimately, the key question for farmers is not the complexity of the technology, but the value it brings to the farm system. Several countries are developing approaches to assess or utilize certain gene-edited crops under specific conditions. These developments are relevant to South Africa because changes in international breeding technologies can ultimately affect seed availability, cultivar choice, commodity markets, and trade.
Canola is one example. Developments in gene-edited canola could eventually become relevant to South Africa through international seed markets and winter crop production. Therefore, these developments require constant technical monitoring. They do not necessarily mean that new technologies must be immediately adopted in South Africa. Rather, they provide researchers, industry, and farmers with an opportunity to understand new technologies, assess their performance, and consider their potential relevance in South African production systems.
Accessibility will also be a factor. A new variety must provide sufficient agronomic and economic benefit to justify adoption. Seed cost, availability, yield, technical support, market requirements, and compatibility with existing farming methods will influence whether farmers benefit from a new technology. This is particularly important for smallholder and small agricultural enterprises. Agricultural innovations must focus not only on what is technically possible but also on whether the relevant technologies can promote inclusive and sustainable agricultural development.
The path from genetic research to agricultural impact involves several stages: the trait must be scientifically characterized, incorporated into a suitable cultivar, evaluated under appropriate environmental conditions, and assessed for agronomic performance, and then it must demonstrate value within the farm system where applicable, meeting relevant regulatory and market requirements.
This highlights the importance of rigorous trials, farmer participation, extension support, and reliable technical information. Farmers must understand not only what a new variety can potentially offer but also how it performs in specific production settings and what that means for their costs, risks, and markets. Thus, the entire agricultural value chain plays a vital collective role: researchers provide scientific evidence, breeders develop suitable varieties, regulators assess potential risks, extension services provide technical information, and farmers evaluate technologies in their production systems.
Agriculture operates within complex biological and ecological systems, and technologies must be considered with due attention to their potential impact on health, biodiversity, the environment, trade, and production systems. Therefore, caution must remain an integral part of agricultural innovation. At the same time, continuous scientific monitoring of international developments allows South Africa to stay informed about new technologies and their potential applications.
This balanced approach supports responsible innovation, allowing for an understanding of what a technology can offer, identifying potential risks, assessing its performance, and ensuring its application complies with appropriate regulatory and biosafety requirements. Ultimately, agricultural genetics should be judged by its contribution to farming, where improved genetics can enhance productivity, sustainability, and resource use efficiency.



