Early perennial ryegrass - diploid

  • Bred in Northern Ireland by AFBI and first officially listed in 2016
  • Performs very well under both cutting and grazing management schemes where its key feature is its excellent first cut yield and spring yields

Species: Lolium Perenne

Officially listed in: England & Wales

Heading dates: England & Wales 18th May

Ploidy: Diploid

Bred in: Northern Ireland

Most suited to: Any medium - long term grazing and/or cutting ley - early growth is key


Glasker is performs well under both cutting and grazing management and is capable of producing high quality forage from both systems however due to its very early heading, it will require careful management to match harvest with maturity and optimise yield and quality. Glasker has the highest quality of all the recommended early diploids.



Other Attributes

Glasker has excellent Crown Rust Resistance of 8.9 as well as exceptionally ground cover and good winter hardiness.


Being a diploid, you should expect an average of 600,000 seeds per kilogram and a slightly more prostrate growth habit. Combined with the high ground cover scores, Glasker will create a very dense sward.


Before recommendation, Glasker has been extensively trialled across almost 10 location in the United Kingdom to gather data on its performance in multiple climatic conditions. The variety was named after a townland near Banbridge which is most well known for the Glasker Mill.



DESCRIPTION: Dark green, densely or loosely tufted. Folded shoot and leaves.

FLOWERING HEAD: Flattened spike with the spikelets arranged alternately on opposite sides of the stem. The spikelets are stalkless with the narrow, rounded face fitting against the stem.

LEAF BLADE: Ribbed on upper surface, smooth and shiny underside. Red at base of stem.

AURICLES & LIGULE: Auricles are usually well developed, up to 1/12 of an inch (2 mm) long, or are sometimes lacking.



Early perennial ryegrass