Lolium perenne L. Perennial ryegrass · Agricultural · bred by Seed Research of Oregon & Rutgers, The State University of New Jersey
also searched as: ср 4600
10 August 2026
The SR 4600 variety is characterized by a prostrate growth habit, which contributes to the formation of a dense turf. It is distinguished by rapid seed germination and good recovery ability after stress, making it suitable for use in seed mixtures and for overseeding at sports facilities.
The plant possesses genetic resistance to leaf spot, crown rust, and red thread. The variety contains a high level of endophytes for pest protection, because of which it is not suitable for use as feed for agricultural animals.
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Variety registered as early as 2 jurisdictions, data for which we do not publish: their registry licenses have not yet been verified. This section will be available upon verification.
breeder code SP, SRX 4SP
A single variety may be registered in different countries under different names. All records are consolidated into one profile based on the breeder's code—an internal number that is identical for the variety across all registries.
The primary name shown is the one under which the variety is registered in the largest number of jurisdictions. Search finds the variety by any of its names.
The variety is listed in the national registry — its seeds are authorized for sale in this country.
№ SR 4600
№ 012346_A 012346
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
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Nearby in the species list Sport, Springfield, Sprinter, Sputknik, Sputnik, Spyglass, SR 4220, SR 4400, SR 4420, SR 4500, Sr 4700, Sr 4750, Stabilo, Stadion, Stamina, Stanford, Stanley, Stann, Stanza, Starblazer