Teagasc Pasture Profit Index (PPI) 2020

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Variety Name Ploidy Heading Date Pasture Profit Index Values €/ Ha/ Year Spring Summer Autumn Total Yield Mean DMD 1st Cut Silage 2nd Cut Silage Ground Cover Score
      PPI Sub-indices (t DM/ha) (t DM/ha) (t DM/ha) (t DM/ha) (g/kg) (t DM/ha) (t DM/ha)  
        Spring Growth Summer Growth Autumn Growth Quality Silage Persistency 1.10* 7.03* 2.36* 10.49* 840.7* 4.65* 4.05* 6.1*
AberBite T 01-Jun 132 -5 38 42 35 32 -11 0.97 7.11 2.30 10.38 849.20 4.78 4.20 5.7
AberChoice D 11-Jun 176 19 45 51 43 18 0 1.12 7.29 2.37 10.78 849.40 4.37 4.24 6.0
AberClyde T 25-May 205 51 42 34 41 38 0 1.31 7.20 2.22 10.73 852.10 5.25 3.73 5.4
AberGain T 04-Jun 192 21 38 42 52 39 0 1.13 7.10 2.29 10.52 854.30 5.05 4.06 5.6
AberGreen D 31-May 145 25 51 61 0 8 0 1.16 7.43 2.47 11.05 840.70 4.45 3.82 6.7
AberMagic D 28-May 187 33 45 70 17 22 0 1.20 7.29 2.55 11.04 845.10 4.87 3.73 6.3
AberPlentiful T 08-Jun 169 48 43 41 13 24 0 1.30 7.22 2.28 10.80 843.20 4.58 4.19 5.5
AberWolf D 30-May 169 56 34 37 10 33 0 1.34 6.98 2.25 10.57 841.70 5.04 3.85 7.0
Alfonso T 01-Jun 107 1 31 33 34 7 0 1.01 6.90 2.21 10.13 849.50 4.63 3.60 6.0
Aspect T 03-Jun 109 8 30 23 29 19 0 1.05 6.89 2.12 10.05 848.90 4.48 4.15 6.1
Astonconqueror D 27-May 169 76 28 38 -7 34 0 1.47 6.84 2.26 10.56 837.60 5.49 3.29 6.5
AstonEnergy T 01-Jun 124 0 28 37 51 8 0 1.00 6.84 2.25 10.09 854.50 4.64 3.61 5.6
AstonKing D 05-Jun 112 62 27 23 -19 20 0 1.38 6.81 2.12 10.30 832.60 4.74 3.82 5.9
Ballintoy T 04-Jun 138 21 36 33 19 28 0 1.13 7.05 2.21 10.40 845.80 4.84 3.99 5.6
Briant T 03-Jun 123 6 37 38 15 27 0 1.04 7.08 2.26 10.38 841.70 4.75 4.05 5.6
Callan D 03-Jun 116 67 21 29 -25 25 0 1.41 6.64 2.17 10.22 832.20 4.97 3.76 6.4
Drumbo D 05-Jun 116 19 24 34 27 12 0 1.12 6.72 2.22 10.06 843.20 4.46 3.95 6.3
Dunluce T 29-May 148 17 37 44 20 31 0 1.10 7.07 2.31 10.49 844.70 4.75 4.23 5.4
Elysium T 27-May 136 43 30 25 13 24 0 1.27 6.88 2.14 10.28 844.20 4.87 3.76 6.1
Fintona T 24-May 154 45 31 44 -9 43 0 1.28 6.92 2.31 10.51 838.80 5.42 3.68 5.5
Gusto D 31-May 127 37 29 54 11 -5 0 1.23 6.87 2.40 10.50 842.00 4.32 3.58 5.8
Kerry D 02-Jun 73 21 29 34 -27 16 0 1.13 6.87 2.22 10.22 830.80 4.42 4.15 6.4
Kintyre T 08-Jun 110 6 31 45 6 21 0 1.04 6.92 2.32 10.29 840.10 4.54 4.24 5.8
Meiduno T 03-Jun 166 41 35 39 30 21 0 1.25 7.03 2.26 10.54 845.30 4.71 3.92 5.4
Moira D 26-May 169 102 17 52 -33 31 0 1.63 6.55 2.38 10.55 827.30 5.07 3.76 6.1
Nashota T 03-Jun 186 43 33 34 32 44 0 1.27 6.98 2.22 10.47 846.80 4.99 4.31 6.2
Nifty D 28-May 119 50 42 39 -34 23 0 1.31 7.19 2.27 10.77 831.70 4.89 3.74 6.5
Oakpark D 02-Jun 120 28 32 44 -10 25 0 1.17 6.94 2.31 10.42 833.70 4.63 4.19 6.7
Seagoe T 25-May 137 29 34 36 -4 43 0 1.18 6.98 2.24 10.39 841.00 5.32 3.78 5.9
Smile D 04-Jun 60 -1 21 39 -9 11 0 0.99 6.64 2.26 9.89 834.50 4.45 4.07 6.4
Solas T 10-Jun 115 5 29 49 6 27 0 1.03 6.85 2.36 10.24 838.80 4.54 4.33 5.9
Triwarwic T 02-Jun 108 16 33 22 9 29 0 1.10 6.96 2.11 10.17 843.00 4.88 3.97 5.9
Xenon T 07-Jun 114 9 29 28 31 17 0 1.06 6.86 2.17 10.08 846.60 4.29 4.41 6.3

Notes and information

The Pasture Profit Index should be used in conjunction with good grassland management practices. The Pasture Profit Index is designed as a guide to assist in variety selection when planning to reseed. Variety selection may depend on the intended grazing management to be practiced (e.g. grazing, silage, etc.).

All data used in the compilation of this index has between generated from data within the Frequent Cutting Department of Agriculture,
Food and the Marine (DAFM) Recommended List Trials.
Only varieties that have completed a minimum of 2 harvest years in the DAFM Frequent Cutting Protocol have a Pasture Profit Index (PPI) value assigned to them. Therefore, it is advised that the PPI should be used in conjunction with the DAFM 2017 Recommended List to ensure you are selecting the best available perennial ryegrass varieties to meet your particular requirements.

Varieties marked with (*) have only one sowing year data available, therefore this is provisional data. Data for Aberchoice, Kintyre, Carraig, Solomon and Drumbo was obtained from 2 different sets of trials in the same sowing year, which was a total of four harvest years. No Frequent Cutting data is yet available for Solas, Rodrigo and Clanrye – no PPI can be calculated.

Persistency is modelled over 12 years which is in line with industry practice (Creighton et al., 2012)

Guide to reading the table:

Variety details: Variety, Ploidy (T= tetraploid; D= diploid), Heading date
PPI details (Total €/ha per year): indicates relative profitability difference when compared to the Base Values
PPI sub-indices: DM yield (spring, summer and autumn), Quality (April, May, June and July), Silage (1st and 2nd cut), Persistency. This indicates the economic merit of each variety within each trait, summed together this provides the overall Pasture Profit Index figure.

Varieties with no PPI values: Varieties listed with no PPI values do not have enough agronomic data available for the PPI value calculation at present. These varieties should also be considered for variety selection given that they are present on the Recommended List. Data for all varieties will be available within the next two years. Actual performance data of each variety is presented in the DAFM Grass and Clover Recommended List Varieties for Ireland 2017.

Queries regarding the Pasture Profit Index can be directed to margie.egan@teagasc.ie

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