Princess 77

Green couch

Scientific name
Cynodon dactylon

Common name
Green couch

Other names (PBR name, trademark, breeder code)

Princess 77 (U.S. Plant Variety Protection certificate no. 9500227), FMC-77, SWI-77.



Description

Princess 77 is a medium to fine-textured seeded turfgrass that is regarded as being the world's first dense, seeded hybrid couch variety. Princess 77 is an intraspecific hybrid which was developed from a cross between two varieties of Cynodon dactylon. Princess 77 has an attractive dark green colour and is superior to other seeded couches on today's market in relation to turf quality and density. If you didn't know you would think Princess 77 was a vegetative turfgrass because of the improved latter traits. Princess 77 seed is available from PGG Wrightson Turf and Living Turf in Australia. Princess 77 is also sold as having been Penkoted®. Penkoted® is a seed coating containing a specific fungicide, a natural insecticide and a growth stimulant to help growth and development following sowing. A seed price range is provided below.



Other comments

Princess 77 is an intraspecific hybrid which was developed by the late Dr Arden Baltensperger from Seeds West Inc./New Mexico State University, from a cross between two clones of Cynodon dactylon (A-3 and A-4). Both the latter two varieties are self incompatible but cross-fertile. Seed is from the F1 generation (Rogers and Baltensperger, 2005). Princess 77 was ranked #4 out of 29 seeded and vegetative couch varieties tested within the USA National Turf Evaluation Program. The variety was also used in the NFL 2004 and 2005 Super Bowl games as the choice of turfgrass for the playing surface. Princess 77 is commonly sold as seed, but it also available as sod/turf. Sow Princess 77 at 5-10g/m2 (50-100kg/ha) when sown alone, or at 2.5-5g/m2 (25-50kg/ha) for existing turf repairs. Seed should be planted in a minimum soil temperature of 18°C at a depth of about 3-5mm (no more than 5 mm depth is recommended). Maintain soil moisture around the seed until germination. Full coverage can be expected in 8 weeks and begin mowing when Princess 77 is about 1/3rd above the expected maintenance height (Source: PGG Wrightson).

 

 

Pests, diseases and weeds

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Available in Seed
Price range $65 - $90
Use Residential and Parks and Sports fields and Golf or bowls
Suitable climate classification Subtropical and Tropical and Temperate
Preferred mowing height 5mm - 25mm
Shade tolerance Poor
Wear tolerance Moderate
Cold tolerance Poor
Heat tolerance Good
Salinity tolerance Good
Water requirement Low
Fertiliser requirement Moderate
Mowing frequency Moderate
Thatch production Low
Website N/A
Facebook N/A

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