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Base AR37

  • Outstanding insect protection from AR37 endophyte
  • Top performer in the FVI (Forage Value Index)
  • Bred in Australia from drought surviving plants
  • High performance in dairy, beef and sheep operations
  • Excellent late season quality feed
  • Very high tiller density and high dry matter production
Base AR37 mixed with clover
Suitable For

Sowing Rate: 20-35kg/ha
Rainfall: Minimum 600mm per annum
Grazing Management Method: Rotational Grazed – Long Term
Endophytes: AR37
Heading Date: Very Late - 22 days later than Nui
Pasture Life: 5 years+
Soil Fertility: High (Olsen P 20+)
Ploidy: Tetraploid

Dairy Australia’s Forage Value Index number 1 performer for 6 consecutive years (2018 - 2023)

Base is a late maturing tetraploid perennial ryegrass available with AR37 endophyte. Base offers superb dry matter yield meaning more feed is available for your stock. An added feature of Base is its high seasonal production in autumn and winter. It also responds well to summer rainfall, providing growth when moisture and fertility are available.

Being a tetraploid perennial ryegrass, Base AR37 has greater palatability and digestibility than normal diploid type ryegrasses which results in a pasture that is more readily accepted by stock. This increased animal acceptance and quality of Base AR37 combined with its erect growth habit can improve animal intake and performance.

Sowing rate (sole): 20-30kg/ha
Sowing rate (mixed): 20-35kg/ha

Base AR37 in Lance Creek Victoria (Wonthaggi).

Leigh Weston (Victorian farmer) and Jake Frecklington (DLF Seeds Sales Agronomist) discuss the benefits of sowing Base AR37 in a Dairy operation. "Base suits our farm and our management style. When the cows come in here, you will get another litre or two in the vat, theres no doubt about it." Explains Leigh.

AR37 endophyte takes ryegrass pasture persistence and protection to a premium level.

An endophyte is a fungus found naturally in many grass species, including ryegrass. It provides the plant with protection from insects, and in return the plant provides the endophyte with a place to live and reproduce.

Pests controlled: Argentine Stem Weevil Larvae, Pasture Mealy Bug, Adult Black Beetle and Root Aphid.

Available in: Base, Reason, One50, Vast, #Legion, #Platform and Expo perennial ryegrass, Mohaka hybrid ryegrass and Lush Italian ryegrass.

Suitable for: Beef, sheep and dairy. For important animal health information, see here.

DLF Seeds: Leading endophyte experts with over 25 years experience and purpose built cold storage facilities to ensure live endophyte percentages are maintained 

To date AR37 has been trialled with sheep and cattle exclusively. Other classes including horses should not consume forage containing AR37 endophyte.

#Platform and Legion have been bred, selected and successfully tested as a perennial and will function as a perennial. ryegrass. Due to small number of tip awns, Platform is certified as Lolium boucheanum. 

Pasture Seed Breeding: Base AR37

Base AR37 was selected from high yielding, densely tillered plants that survived two years of severe drought and hard sheep grazing. These selections were undertaken at our Maryborough (Vic) and Hamilton (Vic) trial sites which were sown in 2004. The surviving plants were transplanted to our Research Station in Ballarat where further screening and evaluation took place.

The finished cultivar was then inoculated with the endophyte AR37 to enhance persistence against a wide variety of insects.

Pasture seed sowing and establishment

Base AR37 perennial ryegrass pasture seed can be sown at 20-35 kg/ha on its own or with proprietary clovers for increased animal performance.

Ensure that the depth of sowing is between 5 and 15mm for optimum establishment rate and early vigour. If the seed is sown too deep, then the seed will be delayed in its establishment which then has an impact on other important management decisions such as weed control and timing, insect pest management and grazing timing.

Grazing management

Base AR37 tetraploid perennial ryegrass should be sown at rates between 20-35kg/ha. It can be easily mixed with either other ryegrasses or, because it is a tetraploid, makes for a great companion with clovers and/or herbs. This will ensure a balanced pasture diet that offers high quality feed for beef, sheep and dairy.

Sowing depth is important as is the seed to soil contact, given that Base AR37 is a small seed. Ensure that the depth of sowing is between 5 and 15mm for optimum establishment rate and early vigour. If the seed is sown too deep, then the seed will be delayed in its establishment which then has an impact on other important management decisions such as weed control and timing, insect pest. 

For pasture seed sowing rates specific to your farming needs, contact your local Sales Agronomist here

Base AR37 will produce more dry matter and will persist longer under rotational grazing management. Avoid hard set stocking during periods of stress such as droughts or periods of low fertility. 

Although to date no incidences of AR37 related staggers in cattle has been reported it is possible sheep could be affected, however trials have demonstrated that on average the duration as well as severity of ryegrass staggers is less than for standard endophyte.


To date AR37 has been trialled with sheep and cattle exclusively. Other classes including horses should not consume forage containing AR37 endophyte.

Rainfall

Minimum 600mm rainfall per annum unless irrigated

What Our Customers Say
  • "

    Several years ago, African Black Beetle appeared on our farm decimating our Italian and some permanent ryegrass pastures which brought about a change in pasture variety selection on our farm. I wanted a tetraploid perennial that was persistent, palatable and responsive to summer and early autumn rains. Having evaluated several varieties on our farm, I now use Base AR37 perennial ryegrass almost exclusively in our pasture improvement programme. A particular feature of it is its persistency, (I have many paddocks untouched for over 5 years) and its ability to maintain feed quality into the early summer. It has also been a reliable performer in producing good quality silage in large quantities with up to 3 cuts on some out paddocks.

    "
    Tim Calder - Meeniyan - VIC
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