| 2004 Orchardgrass Harvest – Sumas Prairie | |||||||
| Dry Matter Yield (tonnes/ha) | |||||||
| Cultivar | Cut 1 May 06 |
Cut 2 Jun 21 |
Cut 3 Aug 03 |
Cut 4 Sep 10 |
Cut 5 Oct 20 |
Total | % Potomac |
| ALPINE | n/a | n/a | 1.35 | 1.96 | 0.99 | n/a | n/a |
| ATHOS | 3.77 | 4.1 | 2.24 | 2.75 | 1.26 | 14.12 | 105 |
| BARAULA | 3.27 | 3.84 | 1.94 | 2.61 | 0.77 | 12.44 | 92 |
| CENTURY | 4.15 | 3.79 | 2.28 | 2.79 | 1.23 | 14.27 | 106 |
| CIS-OG 4 | 4.23 | 3.56 | 1.68 | 2.51 | 0.96 | 12.93 | 96 |
| CMV-B | 4.2 | 3.58 | 1.94 | 2.86 | 0.93 | 13.5 | 100 |
| EALL | 4.83 | 3.6 | 2.28 | 2.8 | 1.35 | 14.95 | 111 |
| AMBASSADOR | 4.27 | 3.76 | 2.25 | 2.74 | 1.27 | 14.3 | 106 |
| ELSIE | 4.38 | 3.68 | 2.23 | 2.9 | 1.29 | 14.47 | 107 |
| ICON | 3.59 | 3.47 | 2.15 | 2.63 | 0.91 | 12.75 | 94 |
| LALL | 4.31 | 3.92 | 2.27 | 2.49 | 1.22 | 14.16 | 105 |
| MALL | 4.53 | 3.78 | 2.45 | 2.75 | 1.25 | 14.76 | 109 |
| NIVA | 4.61 | 3.68 | 2.35 | 2.99 | 1.03 | 14.65 | 109 |
| OG9703 | 3.53 | 3.48 | 1.83 | 2.81 | 0.91 | 12.56 | 93 |
| PS-65-9102 | 3.97 | 4.17 | 2.04 | 2.83 | 0.94 | 13.95 | 103 |
| PSOG-9201 | 4.37 | 4.04 | 2.55 | 3.08 | 1.39 | 15.44 | 114 |
| POTOMAC | 3.8 | 3.5 | 2.19 | 2.71 | 1.3 | 13.51 | |
| Mean | 4.11 | 3.75 | 2.12 | 2.72 | 1.12 | 13.95 | |
| CV | 18.2 | 11.4 | 23.7 | 13.5 | 22.4 | 18.3 | |
| LSD (P | 0.99 | NSD | 0.62 | 0.45 | 0.23 | 1.47 | |
CV = coefficient of variation
LSD = least significant difference
Potomac was used as a check variety.
*NSD = F-tests indicate that there were no significant differences between yields at alpha=0.05
Notes:
Alpine suffered from winterkill at this location and for the first two harvests there was less than 100g of sample from the harvest areas. In the remaining harvests the surviving plants had grown robust enough to justify harvests. The plants produced tillers throughout the season and were distinguished as the only variety to be substantially heading at all harvests.
