Market Class: Green Pea
Year Release to Select Seed Growers: 2012
Sub-licensed Outside of SK: No
International Distribution Rights: Canterra Seeds Ltd./Meridian Seeds
Breeder: Dr. Tom Warkentin, Crop Development Centre, University of Saskatchewan, Saskatoon, SK
Plant Breeders Rights: No
Description
CDC Limerick is a high protein, green cotyledon, semi-leafless field pea variety. Its intense green color and resistance to bleaching is a strong asset for this variety. In 14 years of testing in the Saskatchewan co-op and regional trials, CDC Limerick yielded 95% of CDC Amarillo in the south and 91% in the north (Table 1). CDC Limerick does not have PBR protection.
Statistical analysis of 9 years of long-term RVT data ranked CDC Limerick 6th from the top for yield in the south and in the north among 8 historical and new green pea varieties (Figure 1).
Strengths
- Good bleaching resistance
- Intense green cotyledon color
- High protein concentration
- Good resistance to seed coat breakage
- Powdery mildew resistance
Neutral
- Medium maturity
- Medium vine length
- Round seed shape
- Medium seed weight
- Lodging similar to CDC Forest
- Moderate cooking time
- Fair resistance to Mycosphaerella blight and Fusarium root rot
Weaknesses
- Low yield relative to CDC Forest, CDC Rider or CDC Huskie
Table 1: Agronomic performance of green pea varieties from Co-op and Regional Trials in Saskatchewan
| Variety | Year Registered | Years Tested | Yield (% Amarillo) | Relative Maturity | Lodging (1-9)** | Vine Length (cm) | Resistance to: | Seed Weight (g/1000) | |||||
| Area 1, 2 & South 3* | Area North 3 & 4* | Mycosphaerella Blight3 | Powdery Mildew | Fusarium Root Rot | Seed coat breakage | Bleaching5 | |||||||
| CDC Forest | 2017 | 11 | 102 | 103 | M | 4 | 85 | 4.5 | R | I | G | F | 230 |
| CDC Greenwater | 2014 | 11 | 99 | 93 | M | 3.5 | 90 | 4 | R | MR | F | G | 230 |
| CDC Huskie | 2023 | 6 | 110 | 108 | M | 3.5 | 85 | 4 | R | MR | G | G | 220 |
| CDC Limerick | 2012 | 14 | 95 | 91 | M | 4 | 85 | 4.5 | R | I | G | G | 210 |
| CDC Raezer | 2011 | 12 | 82 | 80 | E | 3.5 | 80 | 5 | R | MR | G | G | 220 |
| CDC Rider | 2021 | 7 | 101 | 99 | M | 3 | 85 | 4.5 | R | MR | G | G | 230 |
| CDC Spruce | 2013 | 13 | 97 | 98 | M | 4 | 85 | 4.5 | R | I | F | G | 240 |
Source: Varieties of Grain Crops 2019 (SaskSeed Guide)
*Area 1: Brown soil zone; Area 2: Dark brown; Area 3: Black; Area 4: Dark grey
**Lodging score: 1 = Upright; 9 = Completely lodged
***Mycosphaerella blight score: 1 = No disease, 9 = Completely blighted
****Seed coat dimpling: Very Good = 0-5%; Good = 6-20%; Fair = 21-50%
Figure 1. Relative yield ranking of green pea varieties from 9 years of RVT data in SK in the south (left) and north (right).
