2005 Perennial Ryegrass Harvest – Sumas (Louis Schurmann Farm)
| Dry Matter Yield (tonnes/ha) | |||||
| Cultivar | Cut 1 May 26 |
Cut 2 July 12 |
Cut 3 Oct 26 |
Total | % of Check |
| early maturing cultivars | |||||
| ARIES | 5.71 | 2.69 | 0.55 | 8.95 | 113 |
| BASTION | 5.68 | 1.79 | 0.43 | 7.9 | 100 |
| TETRYLYTE II | 6.07 | 2.25 | na | na | na |
| intermediately maturing cultivars | |||||
| LAGUANA | 6.85 | 2.69 | 0.96 | 10.49 | 100 |
| ROSALIN | 7.25 | 2.79 | 0.48 | 10.52 | 100 |
| CALIBRA | 6.71 | 1.74 | na | na | na |
| PSGG-9-04 | 5.36 | na | na | na | na |
| late maturing cultivars | |||||
| PIAMONTE | 5.98 | 2.55 | 0.55 | 9.08 | 101 |
| CONDESA | 5.9 | 2.46 | 0.65 | 9.01 | 100 |
| TURANDOT | 6.26 | 2 | 0.49 | 8.9 | 99 |
| Mean | 6.18 | 2.33 | 0.59 | 9.27 | |
| CV | 12.6 | 19.7 | 52 | 11.9 | |
| LSD (P | 0.92 | 0.35 | 0.29 | 0.94 | |
CV= Coefficient of variation
LSD=Least significant difference
Bastion, Rosalin and Condesa were used as check cultivars
Site Information: The site is located southeast of Abbotsford. Medium and some moderately fine-textured, stone-free, local stream deposits are the parent material of the soils. Surface, subsurface and subsoil textures range from silt loam to silty clay loam. Sand is usually present at depths below at least 1 metre.
Design: Randomized complete block design with four replicates.
Plot Size: 4′ by 20′
Harvest Area: 2′ by 20′
Seeding: Broadcast seeded
Fertilizer: Fertilizer was applied to plots prior to cuts 1, 2, 3, 4 and 5 at 100, 75, 50 and 50 kg N ha-1 respectively.
Weed Control: Dyvel was applied to the plots in August.
Irrigation: An irrigation gun was on the plots for a couple of days during the last couple of weeks of August.
Note: Calibra, PSGG-9-04 and Tetrylyte II plots had succumbed to volunteer grasses and weeds by the third cut. The perennial ryegrass plots at this site in 2005 were susceptible to invasion by quackgrass. Although Aries plots suffered from winterkill in 2004, remaining plants made a successful comeback in 2005.
