2005 Perennial Ryegrass Harvest – Agassiz

2005 Perennial Ryegrass Harvest – Agassiz

Dry Matter Yield (tonnes/ha)
Cultivar Cut 1
May 24
Cut 2
July 12
Cut 3
Aug 25
Cut 4
Nov 14
Total % of
check
early maturing cultivars
TETRYLYTE II 5.44 2.71 0.18 0.83 9.16 115
BASTION 4.49 1.91 0.12 1.43 7.94 100
ARIES 4.43 1.84 0.19 1.26 7.72 97
intermediately maturing cultivars
CALIBRA 5.08 1.98 0.18 1.21 8.46 102
ROSALIN 4.87 2.08 0.1 1.23 8.27 100
LAGUANA 4.27 2.14 0.19 0.96 7.56 91
PSGG-9-04 4.38 1.86 0.15 0.84 7.26 88
late maturing cultivars
PIAMONTE 4.42 2.31 0.37 0.8 7.9 104
TURANDOT 4.56 2.09 0.15 1.08 7.87 104
CONDESA 4.17 2.37 0.15 0.9 7.58 100
Mean 4.61 2.13 0.18 1.06 7.97
CV 11 13.4 58.6 33.2 8.91
LSD (P 0.53 0.18 0.13 NSD* 0.7

CV= Coefficient of variation
LSD=Least significant difference
Bastion, Rosalin and Condesa were used as check cultivars
*NSD=F tests indicate no significant differences between yields at alpha = 0.05

Site Information: The site is located at the Pacific Agriculture Research Centre in Agassiz. The site has a Monroe series soil, described as an Eutric Eluviated Brunisol, moderately well to well-drained and derived from medium-textured stone-free Fraser River deposits.

Design: Randomized complete block design with four replicates.
Plot Size: 5′ by 20′
Harvest Area: 2′ by 20′
Seeding: Broadcast seeded
Fertilizer: Fertilizer was applied to plots prior to cuts 1, 2, 3 and 4, at 100, 75, 50 and 50 kg N ha-1 respectively.
Weed Control: Dyvel was applied to the plots in April.
Irrigation: Sprinklers irrigated the plots for a couple of hours each day during the last weeks of August.