The Evolution of Intellectual Property Rights for Plant Varieties

For most of human history, developing a new plant variety earned you nothing but bragging rights at the market. Farmers saved seeds, shared them with neighbours, and no legal system paused to ask who “owned” a crop. That changed dramatically over the twentieth century. Advances in commercial plant breeding, and later in biotechnology, transformed the seed from a humble agricultural input into a proprietary product – and the law had to evolve to keep pace. Understanding how intellectual property rights came to cover plant varieties is essential for anyone studying IP law, because it reveals how legal frameworks can be built from scratch to meet entirely new economic and scientific realities.

Why plants were originally left out of IP protection 🔗

Traditional patent law rests on a simple principle: you can protect an invention, but not a discovery. Plants were seen as products of nature. Even if a breeder spent years selecting and cross-pollinating, the end result – a new variety – was still viewed as something that existed naturally or could arise through natural breeding processes. This made plant varieties ineligible for conventional patent protection under most legal systems.

There was also a practical problem. In Europe, “essentially biological processes for the production of plants” – meaning sexual crossing and selection – were explicitly excluded from patentability. The law drew a line between technical inventions and biological processes shaped by nature, however much human effort was involved. This exclusion made sense when breeding was an informal, community-based activity. It became much harder to justify as the twentieth century progressed and private companies began investing heavily in developing superior crop varieties.

The rise of commercial plant breeding and the call for protection 🔗

The push to establish IP rights for plant varieties gained momentum in the 1950s when plant breeding became an economically promising activity and began attracting significant private capital. The core problem was simple: seeds are self-replicating. A farmer who buys a new variety can save seeds from the harvest and replant them the following season, effectively using the breeder’s work without paying for it again. This made it very difficult for private breeding companies to recover their research investments.

Three European organisations – a commercial plant breeders’ association (ASSINSEL), an industrial property promotion body (AIPPI), and an international plant breeders’ group – drove the initial effort to create a dedicated protection system. Their goal was a framework that would grant breeders exclusive rights over their varieties while still allowing other breeders to access protected material for further research. This was a deliberate departure from the absolute exclusivity that a standard patent would provide.

The birth of the UPOV system (1961) 🔗

The result of these efforts was the International Union for the Protection of New Varieties of Plants, commonly known as UPOV (from its French name, Union internationale pour la protection des obtentions végétales). Established by the International Convention for the Protection of New Varieties of Plants, adopted in Paris in 1961, UPOV created a purpose-built, sui generis – meaning “of its own kind” – system of intellectual property specifically tailored to plant breeding.

To qualify for protection under the original convention, a new variety had to meet four criteria, still known as the DUS+N standard:

• Distinctness: The variety must be clearly distinguishable from all existing, commonly known varieties.
• Uniformity: Individual plants of the variety must show no more variation in relevant characteristics than naturally expected.
• Stability: The variety’s characteristics must remain consistent across successive generations of propagation.
• Novelty: The variety must not have been commercially exploited before the application date.

The 1961 convention also built in two critical exceptions. A breeder’s exemption allowed other breeders to use protected varieties freely to develop new ones – a recognition that plant breeding depends on access to existing genetic material. A farmer’s privilege permitted farmers to save seeds from their harvest for replanting on their own land. These exceptions reflected the reality that completely locking down a biological resource like a plant variety would be both impractical and potentially harmful to agriculture.

Revisions to UPOV: strengthening breeders’ rights over time 🔗

The UPOV Convention was revised in 1972, 1978, and 1991 to reflect technological developments in plant breeding and lessons learned from its practical application. Each revision progressively strengthened the rights granted to breeders.

The 1991 Act was the most significant revision. It extended the scope of protection, requiring authorisation from the breeder not just for the propagation of a protected variety but also for the harvested material. It also introduced the concept of essentially derived varieties – preventing competitors from making only minor modifications to a protected variety and then commercialising it as an independent creation. The farmer’s privilege, once an automatic right, became an optional provision that member states could choose to limit or remove. This made UPOV 1991 considerably more restrictive than its predecessors and triggered significant debate, particularly among developing nations concerned about the impact on smallholder farmers.

Modern biotechnology and the shift in legal thinking 🔗

If commercial breeding in the 1950s was the first catalyst for plant variety protection, the biotechnology revolution of the 1980s and 1990s was the second – and arguably more transformative – catalyst. Genetic engineering allowed breeders to modify plants with a precision that classical breeding could never match, introducing specific traits such as disease resistance, drought tolerance, enhanced nutritional content, and significantly higher yields with far greater speed and predictability.

This technological leap raised new legal questions that the existing UPOV framework was not designed to resolve. When a breeder uses genetic engineering to insert a specific gene into a plant, is that more like a technical invention (protectable by a patent) or a new biological variety (protectable by plant breeders’ rights)? Different jurisdictions answered this differently. In the United States, the landmark 1980 Supreme Court decision in Diamond v. Chakrabarty opened the door by confirming that living organisms modified by human intervention could be patentable subject matter. By the mid-1980s, the decision in Ex Parte Hibberd further clarified that utility patents would apply to plants, including their seeds, genes, and breeding methods. This created a dual-track system where both patents and plant breeders’ rights could potentially apply to the same innovation.

In Europe, the approach remained more cautious. While transgenic plants developed through genetic engineering can be patented under the European Patent Convention, claims directed specifically to individual plant varieties are not allowable under the European patent system. The UPOV framework continued to serve as the primary protection mechanism for plant varieties as a whole, while patents covered the underlying genes, processes, and technologies.

TRIPS and the globalisation of plant variety protection 🔗

The single most influential development in spreading plant variety protection globally was the Agreement on Trade-Related Aspects of Intellectual Property Rights (TRIPS), adopted in 1994 as part of the World Trade Organization framework. Article 27.3(b) of TRIPS requires all WTO member countries to provide protection for plant varieties – either through patents, through an effective sui generis system, or through some combination of both.

Crucially, TRIPS does not require countries to join UPOV. It leaves open the design of the sui generis system. But UPOV, already established and operational, offered a ready-made framework that many countries adopted to meet their TRIPS obligations. Membership in UPOV expanded rapidly after 1994, extending beyond its original base of industrialised European nations to include countries across Latin America, Asia, and Africa.

However, the requirement was not universally welcomed. Developing countries, particularly in Africa, raised serious concerns about whether UPOV-style protection adequately addressed their agricultural realities, where seed saving and sharing are central to food security. Many argued that joining UPOV 1991 would effectively curtail farmers’ traditional rights and benefit primarily large Northern seed companies rather than local breeders or farming communities.

India’s distinct approach: balancing innovation with farmers’ rights 🔗

India’s response to its TRIPS obligations is one of the most closely studied examples of a country choosing not to adopt the UPOV model and instead designing its own sui generis system. The Protection of Plant Varieties and Farmers’ Rights Act, 2001 (PPV&FR Act) was enacted to fulfil India’s WTO commitments while preserving the agricultural traditions and rights of Indian farming communities.

A significant reason India rejected UPOV 1991 was that its provisions effectively denied farmers the freedom to reuse farm-saved seeds and trade them with neighbours – practices that are fundamental to Indian agriculture. The PPV&FR Act instead built a three-part framework for farmers’ rights: farmers can register their own varieties; those who conserve and improve genetic resources of landraces and wild relatives are formally recognised and rewarded; and the traditional practice of saving seeds from one harvest to use or share in the next is legally protected.

Under the Act, a variety seeking registration must satisfy the same core NDUS criteria – novelty, distinctness, uniformity, and stability – that UPOV requires. After registration, the breeder or farmer holds the right to produce, sell, market, distribute, import, and export the variety. Protection lasts eighteen years for trees and vines and fifteen years for extant varieties. The Act also establishes a National Gene Fund to support benefit-sharing with farming communities and village groups whose traditional knowledge contributed to a registered variety’s development.

Administered by the Protection of Plant Varieties and Farmers’ Rights Authority, the Indian framework is widely acknowledged as a genuine attempt to balance breeders’ commercial interests against the rights and contributions of small-scale farmers – a balance that pure UPOV membership would have made more difficult to strike.

The patent vs. plant breeders’ rights tension 🔗

As biotechnology deepened its hold on modern agriculture, a structural tension emerged between the two main IP tools available to plant innovators: patents and plant breeders’ rights. Plant variety protection certificates are generally weaker than utility patents in two significant ways – they include a breeder’s exemption allowing others to use protected varieties for further breeding, and they permit farmers to save seeds for replanting. Patents carry no such built-in exceptions.

Large biotechnology and agribusiness companies have increasingly relied on utility patents to protect transgenic traits, genes, and breeding processes, while plant breeders’ rights under UPOV cover the resulting varieties. This dual-layer protection is particularly prevalent in countries with advanced biotechnology sectors. Critics argue it creates a concentration of control over the global seed supply in the hands of a few multinational corporations, with significant consequences for agricultural biodiversity and farmers’ autonomy worldwide.

The road ahead: innovation, access, and food security 🔗

The evolution of IP rights for plant varieties is far from complete. Climate change is creating urgent demand for new varieties tolerant of heat, drought, and flooding. Feeding a projected global population of nearly ten billion people will require continuous agricultural innovation. At the same time, the rights of small-scale farmers, the preservation of agricultural biodiversity, and equitable access to improved seeds remain pressing concerns – particularly in the Global South.

The challenge for legal systems is to provide enough protection to encourage investment in plant breeding without locking down the genetic commons that all future breeding depends upon. The TRIPS framework deliberately left countries flexibility in designing their plant variety protection systems, and that flexibility continues to matter. Whether a country joins UPOV, develops its own sui generis system like India, or combines elements of both, the underlying policy question remains the same: how do you reward innovation in a living, self-replicating resource that has been shaped collectively by centuries of farmers, communities, and ecosystems?

What do you think? Given that seeds are self-replicating resources shaped by generations of farmers, is it fair to grant a single commercial entity exclusive rights over a new plant variety? And does India’s PPV&FR Act strike the right balance between protecting breeders’ investments and preserving farmers’ traditional rights – or does it still leave too much room for one side to dominate the other?

References

1. https://www.mewburn.com/law-practice-library/plant-variety-rights-and-patents-for-plant-related-inventions
2. https://www.apbrebes.org/content/upov-convention
3. https://www.upov.int/en/
4. https://en.wikipedia.org/wiki/International_Union_for_the_Protection_of_New_Varieties_of_Plants
5. https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/plant-variety-protection
6. https://www.upcounsel.com/plant-patent
7. https://www.fao.org/4/y5714e/y5714e03.htm
8. https://www.southcentre.int/tag/upov-convention/
9. https://www.indiacode.nic.in/bitstream/123456789/1909/1/A2001-53.pdf
10. https://blog.ipleaders.in/important-provisions-regarding-protection-plant-varieties-farmers-rights-act-2001/
11. https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3720685
12. https://plantauthority.gov.in/
13. https://pmc.ncbi.nlm.nih.gov/articles/PMC4297641/