Technical


Axcella - annual ryegrass Low minimum germination temperature Fastest establishment and growth


4Turf - New turf type tetraploid perennial ryegrass Disease resistance Stress tolerance


Speed of establishment


Diploid perennial ryegrasses Highest level of wear tolerance High density


Germination in low temperatures (specific cultivars)


Rough-stalked meadowgrass Fast establishment Excellent shade tolerance Especially for damp conditions


NEW MIXTURES


J Premier Pitch Premier quality football and rugby pitches


Worcester Warriors’ pitch has benefitted from the introduction of tetraploids


Tetraploid ryegrasses have long been known for exhibiting better stress and disease tolerance than diploids


the ability to establish quickly and at lower temps than regular diploids. What is new and unique is that this new grass, with its specific features combined with traditional grasses, has created a new range of seasonaly specific overseeding mixtures that are designed to work best when utilised as an overseeding programme.


The company leading the way in these developments is DLF, which has funded the research and trials into these cultivars. In particular, field trials conducted in January 2011 in The Netherlands have demonstrated just how successful these types were in winter overseeding programmes, with almost double the wear tolerance and faster establishment time.


The new ryegrasses have been combined with Poa trivialis for increased winter shade tolerance, and with low


temperature germinating diploid perennial rye for outright wear tolerance. Each mixture is designed to maximise overseeding results in a specific season. Perhaps the most dramatic effects are that they allow groundsmen to extend the traditional sowing season by as much as four months.


The benefits of this better protection in cold temperatures was realised earlier this year when Martin Knight, Head Groundsman at Worcester Warriors Rugby Club applied one of the new mixes, Johnsons J Rescue, at the back end of 2010, in what was one of the UK’s coldest winters. The results that Martin found allowed play to progress with few cancellations through, what was, an intensively fought campaign in bitter winter weather. For further information on the new tetraploid mixture, visit www.dlf.co.uk


40% Bizet Perennial Ryegrass 25% Eurodiamond Perennial Ryegrass 25% Churchill Perennial Ryegrass 10% Columbine Perennial Ryegrass NEW


J Rescue Autumn Oct-Dec over seeding programme and rapid repairs. Football & rugby pitches, tees, polo fields and racecourses


30% Axcella Annual Ryegrass NEW 25% Double Tetraploid Perennial Ryegrass NEW 25% Berlioz Perennial Ryegrass 20% Solo Rough Stalked Meadow Grass


J Rescue Spring


Jan-March over seeding programme and rapid repairs. Football & rugby pitches, tees, polo fields and racecourses


50% Axcella Annual Ryegrass NEW 25% Double Tetraploid Perennial Ryegrass NEW 25% Berlioz Perennial Ryegrass


Trial plots being mown


DECEMBER/JANUARY 2012 PC 131


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