RPRÂŽ Trials In recent years, RPR performance has been
In separate studies conducted by Iowa
evaluated by turf researchers at several
State in 2010, the establishment of
different universities where it was analyzed
RPR was evaluated under various levels
for fundamental turf characteristics including
of traffic and compared with mixtures
establishment under traffic, traffic tolerance
containing both Kentucky bluegrass and
and recovery. The results: RPR is superior
SOS Turf Annual Ryegrass. Conducted in
in traffic tolerance trials when compared to
both the spring and fall, and using a traffic
traditional perennial ryegrass and maintains
simulator, the trial area was subjected
high turf quality under these conditions of
to various levels of traffic intensity. For
heavy traffic.
the spring study, traffic started six days
At The Ohio State University, research plots
after planting in mid-April. The Kentucky
were rigorously subjected to damage by a traffic simulator. In the graph below, data supports RPR’s ability to maintain quality and integrity despite three days of traffic applied. Intense Traffic Recovery
bluegrass never established and the SOS turf annual transitioned as early summer temps spiked. Only the RPR and mixtures containing it thrived and maintained cover during the trial duration through August. In the Iowa State fall study, an early
9
September planting was again subjected
6
to various intensities of traffic simulation 13 days after planting. Similar to the
3 0
RPR Ohio State University
spring, the Kentucky bluegrass was again Non-RPR
RPR was also tested for traffic tolerance at the Southeastern Turfgrass Research Center in Lexington, Kentucky. As in The Ohio State
the poorest performer, while the RPR and SOS, alone or in mixtures, topped the trial with superior ground cover. Summer Performance
University study, the results showed RPR to
9
be superior to traditional perennial ryegrass
6
when evaluating traffic tolerance. Intense Wear Tolerance 9 6 3 0
RPR Non-RPR Southeastern Turfgrass Research Center
3 0
RPR Iowa State University
Non-RPR
To learn more, visit: www.barusa.com
RPR® Varieties ‘Barbeta’
Leaf Color Chart
This regenerating perennial ryegrass exhibits extreme traffic tolerance with the ability to recover following significant wear events. This fine textured grass is endophyte enhanced
1
to provide additional stress tolerance. This variety is medium green in appearance, and responds very well to fertilizer applications. 2
‘Barlennium’ This turf-type perennial ryegrass exhibits rapid germination and exceptionally fast establishment. Its fine leaf texture, very dark
3
green color and excellent mowing quality make this dense turf widely adaptable for multiple uses.
‘Linn’ PR
4 ‘Barlibro’ RPR ‘Barbeta’ RPR
5
Bargamma ‘Barprium’ RPR
6
7
Barbeta
‘Barlennium’ PR
8
9
Traditional*
RPR® Products Turf Star® RPR® A mixture of RPR varieties and elite perennial
Characteristics
ryegrass, Turf Star RPR is the solution for all golf, sports, and recreational facilities where elite perennial ryegrass quality is required.
Color
Turf Star RPR’s extreme wear tolerance and
Turf Quality
ability to recover thin and damaged turf
Wear Tolerance
is unique to the industry. Extremely fast
Aggressiveness
germinating and quick to establish, Turf Star RPR can also be over-seeded into traditional
Mowing Frequency
cool season turf lawns, such as Kentucky
Close Mowing
bluegrass, fine fescue, and traditional
Tolerance
perennial ryegrass. Learn More