Silverosa GT Lucerne
Medicago sativa - SKU:
Silverosa GT sets the new standard in multipurpose grazing tolerant lucerne, with inbuilt disease and pest resistance, and high levels of forage quality and salt tolerance.
Extremely persisent with a winter activity of 7
Rapid regrowth after grazing and cutting
Tolerates high levels of salinity up to 10,000ppm (mg/L)
Australian bred to suit all lucerne growing areas
- Erect, leafy growth habit
- Very high leaf:stem ratio in mature stands
- Fine leafy stems are very palatable in hay and forage
- Has broad crowns with dense stem regrowth
- High levels of ME and CP.
Area of Adaption
- From the subtropics to dryland or irrigation conditions
- Tolerates frost and cold winters
- Persists in saline soils and retains its high quality and palatability
Soil TypeSilverosa GT grows well on a wide range of well-drained soils including deep loams, sands and loam over gravel or clay but does not produce as well on shallow soil types. Silverosa GT has improved acid soil tolerance, although it is highly recommended to lime prior to sowing. All lucernes are sensitive to high aluminium levels which reduce root development in low pH soils.
Saltlander® technology in Silverosa GT extends the potential for growing lucerne in more saline soils, where the key factor is long-term persistence. Most established lucerne stands will withstand short-term saline shock but Silverosa GT will thrive at salinity levels of up to 10,000ppm (mg/L) and persist, with lower production, at even higher salinity levels.
FertilitySilverosa GT will benefit from annual applications of lime, phosphorus and potassium, especially if removing hay/silage from the paddock.
Sowing GuidelinesLucerne can be established successfully whether it is sown in autumn, winter or spring. The time of sowing normally depends on the rainfall and climate of the region. Autumn establishment is better suited to winter active or highly winter-active varieties as they have better frost tolerance. Delayed sowing allows the opportunity to improve weed control and seedbed preparation. For spring-established lucerne aim to sow mid-August onwards as the soil temperature begins to increase and daylight increases.
Sow the seed at:• 6-15kg/ha (dryland) or • 15-25kg/ha (irrigated)at approximately 1cm depth. Lucerne seed must be inoculated with the AL strain of rhizobium to ensure effective nodulation and prompt establishment. Silverosa GT is only available as a coated seed which enhances seed vigour.
Do not over sow into an “old” and thinning lucerne stand. Allow a minimum of one year between stands to create an effective disease break.
Disease and Pest ManagementMonitor regularly during emergence for insect damage from pests such as RLEM, aphids and lucerne flea and spray if required. Silverosa GT is highly resistant to spotted, blue-green and pea aphid species. It also has good levels of resistance to nematodes (eg highly resistant to root-knot, resistant to root-lesion and moderately resistant to stem nematode).
Phytophthora root rot, Anthracnose, Stagonospora and Fusarium crown rot can severely damage lucerne however Silverosa GT has high resistance levels to these diseases.
Silverosa GT is highly resistant to rust and downy mildew, and also resists common leafspot, Phoma (spring blackstem), Pepperspot and Stemphylium leaf spot.
Ph: 7 - 7
Sow Rate: 1 - 1kg/ha
Ph: 7 - 7
Sow Rate: 1 - 1kg/ha
Weed ControlSpray out any old pasture/crops with glyphosate prior to sowing but speak to your Upper Murray Seeds agronomist about the correct rate to use depending on the size of weeds present. Also consider using a pre-emergent herbicide such as trifluralin.
Weed control in young lucerne can be challenging due to its slow seedling growth. Most broad-leaf herbicides cannot be applied until the lucerne is at the third trifoliate leaf stage.
Weeds need to be treated when small. Once a stand is established (>1 year) there are more weed control options and herbicide efficacy is improved.
GrazingSilverosa GT will withstand prolonged periods of grazing, but first allow the stand to reach approximately 20cm high and ensure that the plants cannot be pulled out prior to grazing. Allow lucerne to flower in its first year so the plant can strengthen its crown and taproot.
Monitor the first grazing carefully and remove stock before they begin to graze near the crown of the plant. Rotational grazing (or strip grazing) is essential for productivity and longevity of the stand. Silverosa GT can withstand long periods of set-stocking provided sufficient moisture is available. Avoid damaging the crown of the lucerne plant
Feed QualitySilverosa GT is highly regarded due to its ability to produce top quality, out-of-season feed. It has a high leaf:stem ratio, excellent palatability and digestiblity. Silverosa GT has high levels of metabolisable energy and is a reliable source of crude protein.
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DISCLAIMER: All information provided is intended as a guide only. Bell aPasture Seeds has taken all due care to ensure the included information is accurate and use of this information is at the user’s sole discretion and risk. Varying environmental conditions may alter the performance of products and plants.