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Cultivar Selection: Spring Green-up Apr 16, 2008
;) In many instances, spring sports like lacrosse, MLS soccer, softball and baseball are played on athletic fields that are only just beginning to come out of winter dormancy. Soils are thawed but grasses are still dormant or just beginning to grow, so choosing turfgrass cultivars with a "short" winter dormancy period is crucial for these spring sports. While many of the perennial ryegrass (Lolium perenne) cultivars are fairly similar to one another in their color year-round, Kentucky bluegrass (Poa pratensis) cultivars can differ from each other siginifantly when it comes to going dormant in the fall and greening back up in the spring. Some of the Kentucky bluegrass cultivars in the Midnight and Compact groups are considered to have a "long" winter dormancy, in that they start to go brown/dormant in October and do not green up and actively grow until late April or May the following spring. These cultivars may not be suitable for early spring sports for two reasons: (1) they are not going to recover from wear because they are not actively growing, and (2) in a mixed sward, they create an inconsistent playing surface - not just in color (see picture), but in surface levels.
A list of Kentucky bluegrass culivars that have been ranked for spring green-up, can be found via the NTEP website: NTEP Spring Green-up Data  |
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About SportsNotesSportsNotes was developed to keep Athletic Field Managers abreast of current topics important in daily management of turfgrass.Provided on a continual basis throughout the year, the topics covered primarily involve both abiotic and biotic stresses that are presently occurring. Originally developed by Pam Sherratt, Sports Turf Extension Specialist, all members of BuckeyeTurf contribute to these timely technical notes.  News from MLS
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