Although RPR is still recognized as a perennial ryegrass species, it has been clearly recognized as a different type of perennial ryegrass and been identified as belonging to the category of Lolium perenne subsp. stoloniferum, a regenerating perennial ryegrass.
RPR recognized as the first truly unique perennial ryegrass since 1836
RPR was recently re-categorized as a subspecies within perennial ryegrass. Although RPR is still recognized as a perennial ryegrass species, it has been clearly recognized as a different type of perennial ryegrass. RPR has been identified as belonging to the category of Lolium perenne subsp. stoloniferum, a regenerating perennial ryegrass. First cited in 1836, no varieties have been recognized as a Lolium perenne stoloniferum since (regular perennial ryegrass is called Lolium perenne).
In 1836 Dr. Lawson described a class of regenerating perennial ryegrass as Lolium perenne var. stoloniferum. Since then nothing has been bred or identified in this class of perennial ryegrass. Barenbrug USA launched the RPR program after more than 10 years of breeding and is the only company to have its varieties listed as Lolium perenne subsp. stoloniferum. Dr. Joseph Wipff, breeder of the RPR varieties said, “I am very happy with this recognition as it clearly shows the difference between RPR and other regular perennial ryegrasses. These RPR varieties are aggressive and will spread which is ideal for high-wear applications such as sports fields and golf courses; RPR just loves wear and tear”.
RPR was introduced to the market in 2010 and has been very successful, gaining support nationally from University researchers and professional turf managers. Sports turf managers and golf course superintendents have seen the difference between regular perennial ryegrass and RPR. Christiaan Arends, Turf Product Manager at Barenbrug USA said, “RPR has been very well accepted and it has proven itself already in a number of applications. We have had a tremendous amount of positive feedback from our customers.”
The Barenbrug Group is one of the world’s largest developers of proprietary turf and forage grass varieties and legume species, and is the leader in turf grass plant breeding, seed production and marketing since 1904. Barenbrug USA is the largest subsidiary of the Barenbrug group and is located in Tangent, Oregon.