AFBI - Agri-Food and Biosciences Institute : Grass & Clover Recommended List

Grass and Clover - Tetraploid Perennial Ryegrass

Tetraploid Perennial Ryegrass Recommended List 2011

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Summary
Grazing
Silage

	Variety	Heading Date	Total Silage Yield %	2-Cut Yield %	Digest yield	Maturity Class	Total Grazing Yield %	Grass Quality %D	Sward Density (0-9)
C	Control		15.6 t/ha	10.1 t/ha	7.4 t/ha		11.9 t/ha	D-Value
	AberTorch	6 May	101	97	101	Early	102	74.8	5.7
	Malone	17 May	111	111	116	Inter	104	75.3	5.3
	Niagara	17 May	104	104	109	Inter	102	76.9	6.3
(S)	AberGlyn	18 May	104	110	107	Inter	99	73.4	5.6
	Magician	18 May	108	114	117	Inter	103	75.0	5.5
	Trintella	18 May	105	108	114	Inter	100	74.3	5.4
	Eurostar	24 May	106	107	106	Inter	102	74.7	6.1
	Dunluce	28 May	108	105	114	Inter	108	75.7	5.7
	Astonenergy	30 May	104	101	109	Inter	106	77.6	5.4
	Glencar	30 May	109	117	112	Late	100	73.7	5.8
	Delphin	31 May	111	119	116	Late	105	74.6	5.2
	AberCraigs	2 Jun	108	116	111	Late	103	77.3	5.7
	Navan	3 Jun	106	108	109	Late	105	76.3	5.4
	AberBite	4 Jun	110	113	112	Late	107	77.6	5.6
	Twymax	4 Jun	107	112	113	Late	103	74.0	6.0
	Dunloy	7 Jun	104	107	111	Late	102	76.0	6.0
	Glenstal	19 May	108	112	108	Inter	104	72.6	5.7
	Elgon	1 Jun	101	105	106	Late	102	76.2	5.7
	Astonprincess	5 Jun	103	108	114	Late	101	75.9	6.0
	Kintyre	5 Jun	106	110	112	Late	103	75.3	5.7
	Fornido	6 Jun	106	109	108	Late	99	75.6	6.2
	Tivoli	8 Jun	106	108	111	Late	100	76.2	5.6
	Millennium	9 Jun	103	105	102	Late	103	75.3	5.9
(P)	Seagoe	20 May	104	106	116	Inter	108	74.1	5.4
(P)	Diasa	2 Jun	107	117	115	Late	101	77.2	5.8
(P)	Dundrum	2 Jun	106	113	111	Late	101	76.4	5.5
(O)	Loporello	2 Jun	101	106	103	Late	95	73.4	6.4

	Variety	Heading Date	Total Grazing Yield %	Grass Quality %D	Sward Density (0-9)	Spring Grazing Yield %	Early Summer Grazing Yield %	Late Summer Grazing Yield %	Autumn Grazing Yield %
C	Control		11.9 t/ha	D-Value		2.4 t/ha	4.6 t/ha	3.2 t/ha	1.7 t/ha
	AberTorch	6 May	102	74.8	5.7	126	92	99	98
	Malone	17 May	104	75.3	5.3	120	96	103	101
	Niagara	17 May	102	76.9	6.3	108	96	102	102
(S)	AberGlyn	18 May	99	73.4	5.6	117	93	96	92
	Magician	18 May	103	75.0	5.5	113	98	106	100
	Trintella	18 May	100	74.3	5.4	110	94	101	96
	Eurostar	24 May	102	74.7	6.1	110	100	100	99
	Dunluce	28 May	108	75.7	5.7	107	106	109	109
	Astonenergy	30 May	106	77.6	5.4	98	105	110	108
	Glencar	30 May	100	73.7	5.8	96	102	102	96
	Delphin	31 May	105	74.6	5.2	102	105	107	103
	AberCraigs	2 Jun	103	77.3	5.7	96	104	105	99
	Navan	3 Jun	105	76.3	5.4	93	103	114	108
	AberBite	4 Jun	107	77.6	5.6	89	110	110	114
	Twymax	4 Jun	103	74.0	6.0	91	110	102	98
	Dunloy	7 Jun	102	76.0	6.0	88	108	102	102
	Glenstal	19 May	104	72.6	5.7	113	99	105	102
	Elgon	1 Jun	102	76.2	5.7	102	100	102	99
	Astonprincess	5 Jun	101	75.9	6.0	93	108	100	95
	Kintyre	5 Jun	103	75.3	5.7	88	105	105	111
	Fornido	6 Jun	99	75.6	6.2	83	105	104	96
	Tivoli	8 Jun	100	76.2	5.6	87	106	99	99
	Millennium	9 Jun	103	75.3	5.9	93	107	105	105
(P)	Seagoe	20 May	108	74.1	5.4	113	99	115	109
(P)	Diasa	2 Jun	101	77.2	5.8	82	106	107	100
(P)	Dundrum	2 Jun	101	76.4	5.5	85	109	102	101
(O)	Loporello	2 Jun	95	73.4	6.4	82	102	95	92

	Variety	Heading Date	Total Silage Yield %	2-Cut Yield %	Digest yield	1st Cut Silage %	2nd Cut Silage %	3rd Cut Silage %	Aftermath Grazing %
C	Control		15.6 t/ha	10.1 t/ha	7.4 t/ha	6.7 t/ha	3.4 t/ha	3.3 t/ha	2.2 t/ha
	AberTorch	6 May	101	97	101	100	90	102	115
	Malone	17 May	111	111	116	111	111	117	101
	Niagara	17 May	104	104	109	102	107	109	100
(S)	AberGlyn	18 May	104	110	107	114	103	98	89
	Magician	18 May	108	114	117	113	114	100	98
	Trintella	18 May	105	108	114	108	107	105	95
	Eurostar	24 May	106	107	106	107	107	108	94
	Dunluce	28 May	108	105	114	94	128	115	107
	Astonenergy	30 May	104	101	109	91	121	109	107
	Glencar	30 May	109	117	112	121	110	100	85
	Delphin	31 May	111	119	116	123	110	99	91
	AberCraigs	2 Jun	108	116	111	115	116	99	87
	Navan	3 Jun	106	108	109	106	111	113	90
	AberBite	4 Jun	110	113	112	111	118	109	99
	Twymax	4 Jun	107	112	113	113	110	104	88
	Dunloy	7 Jun	104	107	111	102	114	106	93
	Glenstal	19 May	108	112	108	111	114	105	93
	Elgon	1 Jun	101	105	106	108	98	105	83
	Astonprincess	5 Jun	103	108	114	109	106	98	89
	Kintyre	5 Jun	106	110	112	106	117	104	95
	Fornido	6 Jun	106	109	108	106	114	108	88
	Tivoli	8 Jun	106	108	111	104	118	111	86
	Millennium	9 Jun	103	105	102	101	112	104	95
(P)	Seagoe	20 May	104	106	116	102	111	100	108
(P)	Diasa	2 Jun	107	117	115	116	120	89	85
(P)	Dundrum	2 Jun	106	113	111	111	115	99	89
(O)	Loporello	2 Jun	101	106	103	106	107	96	85

Status Codes:

'Bold Type' - Varieties that have been tested in at least 5 separate trials and found to maintain very high performance levels (designated as Highly Recommended below)
'Plain Type' - Varieties that may have been performing but have as yet completed less than 5 separate trials (designated as Fully Recommended below)
- Varieties which have consistently performed well in 5 or more trials but not with quite as high a performance as the 'Bold Type' varieties (also designated as Fully Recommended below)
(S) - Varieties recommended for a specific use as detailed in the text
(P) - Varieties which, as yet, have completed only 3 trials and are provisionally recommended pending further data (Seed may be in short supply)
(O) - Varieties which are becoming outclassed

Note: Varieties in bold text are in the most highly recommended classification.

Variety Descriptions

Variety descriptions are in alphabetical order. Information is also given on the breeder and on the name of the agent.

AberBite	IBERS (UK); BSH This variety has impressively high total and 2-cut silage yields that continue to bulk into the third cut. Grazing quality is superbly high, with excellent total yields that are delivered most strongly from early summer to an extended high autumn productivity.
AberCraigs	IBERS (UK); BSH Excellent 2-cut silage total and digestible yields plus a good sward density for its type. Grazing output is maintained at a high level throughout the main summer growing period, with an impressively high grass quality.
AberGlyn (S)	IBERS (UK); BSH Produces excellent silage yields comprising of an enormous first cut, and it has a good grazing yield supplemented by an impressive spring performance.
AberTorch	IBERS (UK); BSH A very early heading variety with an erect open growth habit and extremely high spring grazing yields at a high grazing digestibility.
Astonenergy	Euro Grass (D); EG Produces excellent grazing yields of impressively high quality herbage and this high quality characteristic is also apparent in the very high 2-cut digestible silage yields. Second cut silage yield is very high plus excellent aftermath and late summer growth.
Astonprincess	Euro Grass (D); EG This late maturing variety produces excellently high 2-cut digestible silage yields from swards of high density for a tetraploid. Grazing production is also high particularly in early summer.
Delphin	CPB Twyford Ltd (UK); DLF One of the highest yielding late tetraploid varieties for silage in all categories plus a high grazing performance. It gives its strongest grazing performances in mid-season and forms tall erect open tetraploid swards.
Diasa (P)	DLF Trifolium (DK); DLF This new provisionally recommended variety produces impressively high 2-cut DM and 2-cut digestible yields. For grazing use it has a good sward density very high herbage quality and strong productivity in the main summer period.
Dundrum (P)	DARD (UK) ; Bar This provisionally recommended variety has an excellent 2-cut silage yield, that is maintained when herbage digestibility is measured. It also maintains an impressively high grass quality for grazing combined with a notably high early summer grazing yield.
Dunloy	DARD (UK) ; Bar This variety has excellent 2-cut digestible yields that comprise an impressively high second cut and, if required, high third cut. The very dense grazing swards, for a tetraploid, have high a grazing digestibility and are at their highest productivity levels in early summer.
Dunluce	DARD (UK) ; Bar Creates the highest total grazing yield on the list, has one of the highest silage production outputs, retains its high productivity potential late into the season and maintains a high herbage quality in both management systems.
Elgon	Advanta Seeds BV (NL); DLF Produces strong total annual grazing and silage yields which are enhanced by its high grass quality characteristics. This maintains its high 2-cut silage yield when digestible yield is measured and gives it a high grazing D-value from a classical bold tetraploid sward structure.
Eurostar	Advanta Seeds BV (NL); DLF A very dense variety for a tetraploid, with large annual and spring grazing yields and high silage production in all categories. Silage production is very high and consistent across all three silage cuts plus it has good herbage quality characteristics.
Fornido	Euro Grass (D); EG This variety has a consistently high yielding silage performance in the ,total,, ,2-cut, and ,2-cut digestible, categories. It also forms highly dense swards for a tetraploid and gives its strongest grazing performances during the main summer growth period.
Glencar	Teagasc (ROI) ; DLF One of the highest total silage yielding varieties for 2-cut bulk yield. It also has high grazing yields throughout the summer from swards of a good density. Such excellent high productivity is partially offset when digestibility is considered.
Glenstal	Teagasc (ROI) ; DLF Excellent production of a large 2-cut bulk of grass for silage or very high total grazing yields, though digestibility levels offset some of this advantage. Typical of its maturity, grazing yields are particularly high in spring and it has a classic tetraploid sward structure.
Kintyre	Teagasc (ROI) ; DLF A variety with notably excellent 2-cut silage performances, which will continue to a high third cut, if required. The good grazing yields are at their strongest after spring is over with particularly excellent autumn productivity for extending the grazing season.
Loporello (O)	DLF Trifolium (DK); DLF This variety has exceptionally dense swards for a tetraploid and achieves its highest performance under silage during the first two cuts. While its best grazing performance occurs in early summer, it has become outclassed.
Magician	Teagasc (ROI) ; DLF High total silage yields that are enhanced greatly when digestibility over two cuts is considered. Grazing yield is also high in combination with good grazing quality and very high spring growth, from classically erect tetraploid swards.
Malone	DARD (UK) ; Bar Impressively high silage productivity in all categories from the classically tall open tetraploid-type swards. The high grazing yields comprise excellent spring growth, with high performance in late summer and a high grass D-value.
Millennium	Teagasc (ROI) ; DLF This, the latest maturing tetraploid variety, forms high density swards for a tetraploid, delivers similarly good silage yields in all categories, with an excellent summer grazing performance from within a high total season grazing yield.
Navan	DARD (UK) ; Bar High yielding under both sward managements, it maintains its high productivity across all three silage cuts. Grazing performance is at an optimum during the main summer season and into the autumn while the grass quality is maintained at a very high D-value.
Niagara	Advanta Seeds BV (NL); DLF The high silage productivity is enhanced when 2-cut digestible yield is calculated. The good grazing yields comprise of very high quality herbage from impressively dense swards for a tetraploid.
Seagoe (P)	DARD (UK) ; Bar This new provisional recommendation produces an extremely high 2-cut digestible silage yield and a very high total grazing yield of good quality grass with excellent spring growth.
Tivoli	DLF Trifolium (DK); DLF The generally good total silage yield is greatly enhanced by its quality of production to give an excellent 2-cut digestible yield. The quality of the grazing grass is also high with productivity maintained through summer from a typically bold growing tetraploid-type sward.
Trintella	DLF Trifolium (DK); DLF Produces impressively high 2-cut total and digestible silage yields from typical tall open tetraploid-type swards. The good grazing yields of good quality grass include notably high spring yields typical of an earlier member of the intermediate maturing varieties.
Twymax	Advanta Seeds BV (NL); DLF Another variety with very high 2-cut digestible silage yields that are similarly highly performing in both cuts. Grazing yields are high, particularly in early summer and forms excellently dense swards for a tetraploid.