Market Class: Green Pea
Year Released to Seed Growers: 2016
Sub-licensed Outside of SK: SeCan
International Distribution Rights: Canterra Seeds Ltd./Meridian Seeds
Breeder: Dr. Tom Warkentin, Crop Development Centre, University of Saskatchewan, Saskatoon, SK
Plant Breeders’ Rights: PBR ’91
Description
CDC Spruce is a green cotyledon, semi-leafless field pea variety. In 13 years of testing in the co-op and regional trials in Saskatchewan, CDC Spruce yielded 5% higher than CDC Greenwater in the north but 2% lower in the south (Table 1). Relative to the yellow pea check variety CDC Amarillo, CDC Spruce yielded 97% in the south and 98% in the north. CDC Spruce has PBR protection.
Statistical analysis of 9 years of long-term RVT data ranked CDC Spruce 5th from the top for yield in the south and 4th in the north among 8 historical and new green pea varieties (Figure 1).
Strengths
- Powdery mildew resistance
- Good resistance to bleaching
Neutral
- Good lodging resistance, similar to CDC Forest
- Medium maturity
- Medium vine length
- Medium seed size
- Round seed shape
- Moderate cooking time
- Fair resistance to Mycosphaerella blight and Fusarium root rot
Weaknesses
- Rated fair for seed coat breakage and dimpling
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)2 | Vine Length (cm) | Resistance to: | Seed Weight (g/1000) | |||||
| Area 1, 2 & South 31 | Area North 3 & 41 | Mycosphaerella Blight3 | Powdery Mildew | Fusarium Root Rot | Seed coat breakage | Bleaching | |||||||
| 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 (SaskSeed Guide)
1South: Brown, Dark brown, and south Black soil zone; North: north Black soil zone and Dark grey soil zone
2Lodging score: 1 = Upright; 9 = Completely lodged
3Mycosphaerella blight score: 1 = No disease, 9 = Completely blighted
Figure 1. Relative yield ranking of green pea varieties from 9 years of RVT data in SK in the south (left) and north (right).
