Lolium perenne L. Perennial ryegrass · Agricultural · bred by The O.M.Scott and Sons Company
also searched as: калипсо
10 August 2026
The variety belongs to the category of lawn grasses and was intended for creating turf cover. In specialized lawn grass research reports, the variety is mentioned in the context of comparative lawn quality trials.
In breeding literature, Calypso appears as genetic material in the pedigree of later ryegrass varieties. Detailed agronomic indicators and resistance characteristics are not provided in modern publications due to the variety belonging to an early period of breeding.
1 jurisdiction
Green indicates countries where the variety is listed in the national catalogue and its seeds are authorized for sale. Expired registrations are marked separately: the variety was previously admitted, but sale is no longer permitted.
Variety registered as early as 1 jurisdiction, data for which we do not publish: their registry licenses have not yet been verified. This section will be available upon verification.
The variety is listed in the national registry — its seeds are authorized for sale in this country.
№ 1011672
The right is granted for a limited term: propagation of the variety requires a license from the rights holder.
Records are sourced from official registry publications. Data sources and legal status
The directory replicates the primary source. If an entry differs from the official publication, please specify the discrepancy and provide a link if possible. Corrections are added to the moderation queue.
This is a directory, not an official registry: data is based on public disclosures and may have changed. More about sources
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Lolium perenne L. · Perennial ryegrass
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Nearby in the species list Calcado, Calgary, Calibra, Calico, Cality, Callan, Calori, Calvados, Calvana, Calvano 1, Calypso 3, Calypso II, Camacho, Camara, Cambridge, Camel, Cameo, Cameron, Caminero, Campala